Open Source Ecology Development Team, 31 Aug 2017

Previous Meeting Next Meeting

⏯

youtube image

►

From YouTube: Tractor Construction Set 2017 - Part 4

Description

See working docs at http://opensourceecology.org/wiki/Tractor_Construction_Set_2017

----

What you see here at Open Source Ecology is an ambitious program based on a volunteer effort. To help us reach the goals - please consider joining as an OSE Developer in 2017-

http://opensourceecology.org/wiki/OSE_Developers

Take a minute to subscribe to our email newsletter (updates, workshops, etc): http://bit.ly/1LtcM44

A

Sorry welcome to the fourth part of the tractor Construction Set August 30 Wednesday meeting the reference page for today's, the tractor Construction Set 2017 page, and that page has been seated with the actual development template which tracks all the development steps of a complete development process process. Now, in fact, since Lex is joining the team, we've talked about a lot about getting a proper burn down for a certain project and with the development template simply by putting the level of completion and column number three.

A

The development template looks like there's the deliverable, there's the link to the work product and 1 to 10 for this level of completion and the paint column.

A

But when we filled that out as we go along, you can track that over time, parse this spreadsheet, you can simply in the simplest instance, you can parse the spreadsheet using some software and you can Python it up or whatever and generate an ongoing burndown graph from this that we can embed into this project page. So we know where we're at with progress, so that would be good, but seated the formal development template. This is tractor version. 1710 build happening, September 27 through 29.

A

That's when it's all going to happen, we're building heavily upon the work prior work and it's not bad at all. The work we've done, the traction system works I mean that's been proven.

A

Only the the thing that we have to develop for this time is some of the geometrical issues like I mentioned in some of the previous meetings that the tractor that we built the track tractor small micro track that we built was just too tall so reevaluating that we can totally shrink it down by because pretty much the power cube was sitting on top of the tracks and this time around, we can make it such that the power cube sits in between the tracks, so I just went down there to take some measurements and I'll share those with you right here.

A

So I'm gonna share the photos.

A

Sorry record the screen here. I am recording the screen. You can watch this in a recording, but so let me record the sorry you share my screen.

A

And Google photos today, I took just took a few pictures and I'm gonna.

A

Add them to an album, so everyone can see it and it would be the new album tractor.

A

Tractor the 17 point 10 for October okay. So let me share that link in the chat.

A

Yeah Roberto, if you still made that what I asked you to do was on the tractor Construction Set page. If you can start a working document for today, you can copy the old one and make a copy of the old one and put that paste that into the today's entry, which is, if you look up tractor construction, said: there's Wednesday, August, 30 2017, part 4. We can paste that so we have a working document for today as I as I speak here and others join.

A

Now, let's take a look at the tractor Construction Set here the tractor so relevant picture so I'm taking a few pictures of the tracks and an actual.

A

Small tractor like like here, for example- this is a good picture here. So that's behind the tractor. You see the the truck on one side, the the non-symmetric track on the other side, here's the body for reference. If you go to bulldozer.

A

There's some pictures of what that thing looks like when I was doing the micro track, but this is that's what I'm, showing there this device right here, I was just doing some load tests like here I was carrying 6,000 pounds of deadweight, just to show that it can happen and so forth that's kind of the design from before. But once again it's geometry is not right, so concept being here that on this you see how tall the power cube is.

A

That's almost as tall as a person- that's maybe like five feet tall altogether so way too high for safety and because the power cube here is sitting on top of the tracks, and we can slip it in in between the tracks and we can get the geometry that we've done before to actually work out with an existing power cube.

A

So, given that the power cube is turning out to be 20 inches wide, we can absolutely do that and and get re-inspire on this existing platform to make it work for the next next iteration of the tractor for October. So we still have the parts for this. This is all intact. We have this so I can do some early prototyping and put a one of our small power cubes on this and see if that I mean literally taking off the large power cube, that's on it right now putting on a small one.

A

We can actually make this work for a pretty practical tractor now, any other implements such as your loader arms, so step number one would be to rapidly prototype this version. Using this this the platform that already exists, that's something that can be done on a time scale of a day and we can actually have a nice very, very short, short profile, not tall as a not tall tractor, and let me show you some of the dimensions here like I took the critical point.

A

Let me see where, where is that here? Let me reverse this order. Sort photos, newest first, so in in this look at this here. What I'm showing here in this picture right here and we make it central this picture.

A

What I'm, showing is the actual height of 38? That's where my finger is holding, but 38 is the height of that tractor. When the power cube is sitting in that gap right there, so 38 inches. That is excellent. That's absolutely acceptable for a workable tractor now here. What you see is that with a big power cube, it's basically the beginning. The bottom of the power cube where that 38 inches is so we're gonna be pretty good to go.

A

What I would suggest, therefore, is that we go forward right with the existing parts that we have just to prove prove the concept of the the size and the power cube and everything working so that we can go from there. Now this platform has the non-symmetric tracks, as I mentioned. If you go here, you see that one track is, you know, one track is the forward side one! The other side is the back side. They're, not. You know, they're non symmetric and so forth, but we can fix that.

A

Okay, so that's that's the main discovery. Now I'm gonna go through a couple more details here, so the tracks have these idlers. These are actually about 12, and these this is just a pipe section. It's a pipe section and around that you weld a disk and you bend out the disk with a big pipe wrench, and you put on this this, bearing that's a three inch shaft right here, we're you're looking here, that's three inches, that's a big bearing three inch bearing 75, millimeters or so very solid I mean this was scale to large.

A

You know this. This three inch shaft would scale to ten or twenty thousand pound machines, and this is just a mere micro tractor which is super over built. So basically, what we're saying here is that we build a basic tractor, that's a very heavy duty that can be part of a larger machine like if we scale this up. So that's one thing to note: you see the chain: that's chains got pins the detail on the on the drive. So here let's see how how come that's not popping up here.

A

I should ok. Well, that thing doesn't: okay, I'm! Looking at this picture, I hear the sprocket. The sprocket is an eight tooth. We can use that. That's this here is on once again driven on a three inch. This is on a three inch shaft and we're using both three inch and two and four for both sprockets and idlers, and actually this. This is a different micro tractor that we have in a shop and that's actually got a two inch shaft and a smaller idler. This is actually an 8 inch idler.

A

So altogether it's 12 inches across here. So we did two versions: one is the smaller, smaller track set, which had the like a 12, inch, idler and another one that had the 8 inch idler. The 8 inch idler is shown here with it, with a 2 inch shaft going through it. Here, it's an 8 sprocket. The sprockets were always the same, with a 3 inch shaft driving the sprocket from the motor. So that's just some details. Ok notable thing look at this thing, so this is a on the micro track that I'm on this micro.

A

This is on this micro track here.

A

No, actually, it's not it's the other one. It doesn't matter point being I want to point you to this part right here or this part right there, or this part right here. Clamps, look at that. We do not have a keyway in that shaft we're just clamping that that drive sprocket on to the shaft. So it's absolutely modular you can put a bigger, sprocket on and so forth. So this makes it a hundred percent modular.

A

It's I mean it's pretty amazing stuff, if you think about it for quick exchange, because you take off those well I actually have to take off those eight bolts or just loosen four of them on one side and this drive sprocket comes off so for quick exchange. So look at the possibility that can happen here if you take the lower, so this chain is driving the lower lower wheel. This is the track drive.

A

Well, the track is driven by the sprocket. That's and that's it. It's got a lot of traction here with the flat pads. You don't have a lot of traction because I mean you have a relatively decent traction.

A

Let me see so a working document is that for part, four excellent love it let's go right in there and so to take some notes. Also, the part for document August, 30, okay, I'm gonna, get in there. That's good! Thank you continuing on just here the traction here with the flat pads they're, just pretty much riding on the ground. They're, not aggressive, like you can put teeth on them, in other words, just a bar across, so you get more grab on the floor.

A

But what I wanted to show is that this is all clamp on, so that this sprocket can be exchanged now think about this. We talked about in in the daenam part number one universal wheel units which can have traction tracks or wheels. So this point right here.

A

Trying to highlight it and emphasize it.

A

Okay, that point there are tracks or wheels. How do you do that.

A

Get oriented here, that's the old one, that's the old one.

A

How do you do that so on this think about this? If you took off this idler here and put on a regular wheel, hey that would be a tractor with a wheel. Well, except here, that's just an idler, so you'd have to have the track drive. The chain drive the actual wheel, but basically you can put a wheel on this shaft here and you can be driving that wheel. So the promise of replacing this track with the wheel is right.

A

There you take off this idler and put on your driven wheel, and in this configuration you you would have the drive sprocket and a chain you wouldn't be a track will be just one of these chains. We can make those that would drive a wheel, so you can readily convert between a track drive and a wheel drive which would be once again pushing the limits of modularity. That does not exist out there in the world nobody's doing that, but it is I mean we're discovering it's I.

A

Think it's decently practical say you want this one tractor: you don't want to use tracks on it because you want to go far and fast or just you want to transport this thing far. Well, you put on a wheel off look through this machine.

A

What else here? What else are some notable point? This is the actual tube for the idler. That's the eight inch it's about eight and a half. That's called eight inch schedule, 40 pipe! That's just what we're using! That's! That's what makes up the small Eider now this is the 3 inch bearing here now this bearing now. We would like to use this small either everywhere, but you see this bearing.

A

You cannot bolt it through like the middle of this, so you can't attach the bearing to this one, because the 3-inch, bearing is too big, but you can put one in 7/8. Bearing then call it nominally to the 2-inch bearing you can put onto the smaller idler. So we had the two versions: one when we used the 3-inch bearing we use the 12 inch diameter pipe, which means that the bolts would go through the middle of that and you can funk a good function as an oiler.

A

In other words, this this, the four hole bolt mounting pattern, has to go through the inside of the of the pipe in order for this to be workable as a system. So what else more notes? Skipping back to the power cube here? I took some measurements, so we were ending up at twenty by twenty by thirty one. Thirty, three, here's the actual measurement.

A

See this measurement here, that's that's of looking at the top of the power key with a new one that we just built version 17 point: oh eight. Thirty, three inches a little over thirty three I'm noticing here that, on the right hand, side we can trim three inches because the pump has about three inches in the back. So we can trim from thirty three go down to thirty about because you can take off, maybe three and a half.

A

So let's say we got thirty, so twenty twenty thirty for a power cube, not bad and the point to note. As far as fitting that power cube inside. Let's see, let's give you that dimension.

A

Where is that? The point was that the distance between the two wheel sets and on the tractor, the micro track here, if you want to put the power cube in between the two to two motors, there's 28 inches of space. So this motor is in one side and this motor is also on the other side front and back of the the tractor hears.

A

Oh yeah, here's the picture, you can't hardly see it, but what I'm, showing there is that in this one highlighted the distance between the front and back drive motor is 28 inches, so we're like two inches short of fitting a power cube in between there. So basically, what we can do if we want to use this current this frame here, we'd have to extend it by four inches like just a little extension, and then we can make it work to accept the power cube support. So perhaps for an interim.

A

What I would be able to do would be to just well down the motor just just to show that everything is working and we have a nice short tractor and from that we would want to go on to design the loader arms.

A

So if we have workable loader arms on this, then becomes then this this thing becomes turns from just like a traction device where you can pull things to a real workhorse where you can put implements on the front loader anything from like augers to trenchers to a front loader, so a front loader is very useful. You can do earthworks moved soil. Around dig ditches like basically do some landscaping and stuff. So that's good!

A

Well, that's about all on the pictures I have this is this is, and this one here is the old attention. Er, it's not too bad. It's this! It's! This bent one inch threaded rod that pulls on the front so like right here and that pulls the tightness on the tracks. So one on each side bolt it's not spring-loaded, so it's just stiff. It works. Here's another use of the clamping, so this clamp here prevents this shaft from slipping axially, meaning this direction that I'm moving right now.

A

So that's that's! Basically, a DIY collar consisting of slit and a half three-inch pipe heavy wall pipe which is actually drawn over mandrel tubing. That's very heavy wall tubing slit, put these wings on them and bolt them together; clamp them together, so we're good to go and here's some of more of the motors. These are the motors that are actually used in this system.

A

There are 15,000 inch-pounds, very, very strong enough to get you on this micro track right here that I'm, showing it's got 7,000 pounds of pulling force.

A

That is probably five times more than the Toro dingo. So actually we're highly exceeding the industry standard here on this small machine because of the huge torque we have. If you do the calculations for how much torque you get or pulling force you get from this 8-inch sprocket driving the system, you'll see it's about 3,500 pounds per side, so 7000 pounds total for a 2 motor micro track.

A

Let's go to the working document and talk about role. Division and work to do so so review still stands. This is this is still accurate. We we want to do yeah. This is still still relevant. We keep going with the Toro dingo type of concept. So that's what we have ourselves. We talked about frame flat platform, rotor idlers tracks, tensioning, that's what we need frame dimensions. So we updated this to say that this is now between where the tracks are 20 inches that map that works out.

A

In fact, we have some to spare I'm going to go back to the picture and a space between is actually.

A

I'm not showing it I believe it's I showed that space between the tracks to be actually 24 inches. Oh yeah right this picture right here, that's the space between the tracks and I'm, showing there it's 12, 14, 16, 18, 20 21, it's 21 between the here. So it's actually like 22 23 about 24 inches between the tracks. So we can easily fit the power cube. Now that we've got the 22 24 inch so so giving the given these encouraging results, we can go to the CAD and continue so.

A

Let's continue here so 20 inches. It could be the space.

A

Let's see this one tensioner right: here's the Achmed tensioner, let's cut number five out.

A

This is good, so somehow put a put a mechanisms as such. Now, the question is: how are you gonna lift that? Because you need a lot of force to lift that, so you have to work out some mechanism to make it lift. You can possibly do something like like.

A

Maybe a bolt like mount like a threaded vault that would actually tighten and pull some I'm gonna draw that there do some kind of a pull pool or maybe like a vault tensioning bolt or something that pulls this arm upwards, and it would be good if it's that Center could be there or the center could be like underneath like right under the frame, because there's space there too, so that Center is acceptable.

A

If it's there, then it's going through the frame, it's probably easier to make it go under the frame, because if you go through the frame, you have to torch out it. What I would suggest there's a two inch shaft. That goes all the way through the tractor from one side to the next and then go to the loader arm mounting. So whatever the geometry you select so now we know a little bit more information. We've got a power cube, that's sitting in there and as I mentioned the whole distance.

A

So this is actually 20 20, inches wide and 20 inches tall, but it's kind of long, it's gonna be minimum, is going to be as I mentioned, 30 inches 20 inch, so we can say 20 inch by 30 long and we can say 20 by 20 by 30 long.

A

Now the cool thing here is that, as I mentioned, the height is going to be 38 inches. That's excellent.

A

To the top of the power cube, so now we can worry about how we attach the loader arms, so next steps. So, let's see what can we cut out.

A

Let's cut out this dock, this part, we don't need it.

A

Here's the requirements, here's the potential tension, tensioning of the tracks, here's the loader arm mounting, potentially okay. So let's go to current work now so slide duplicate slide. So, let's, let's talk about design actually drawing this out concept with the concept design. Well, part library like start starting on the part, library and I, can call it concept now. Let's call it part library creation, because now we're ready to create the part library for this tractor and we can view that out between all the people.

A

So, let's see who else is on here? Do we have anybody we're like we? Don't have anybody Dewey, just Roberto or am I'm something not showing here? For me, oh whoa, oh you can't. Okay, you can't access the photos. I guess the default setting is.

A

Sure, okay, the default setting there is not good, so we got a du.

A

Sharing options share: okay, I'll try! Now, if you can do it, it should work now.

A

Okay right and then, when you click on it and yeah I wasn't still in edit mode when I was doing that, so it wasn't showing up okay.

A

So you can take a look at this, so what we want to do is cat up this existing thing, so the universal rotor and everything else, and but because we want to have the symmetric track drive for reasons of practicality, like what I said about putting a power cube on this, we can't do that just like as a proof of concept, but we want to have the symmetric track drive, which means we don't want to use this long long drive axis, but instead use just the motor none of this other stuff, which means that we will mount so here's the mounting, so here's, basically the motor okay.

A

Let's look at this picture in detail to explain how the motor is mounted. So this is the motor on the left-hand side. It has this plate with bolt pattern. So it's a motor that comes whatever that motor is dedicated for it. It can mount a wheel on it by the way. So we use that wheel mounting pattern to mount this whole double chain coupler assembly, as a super high torque way to couple the shaft to this high torque motor.

A

So what we can do now is instead of doing this coupling and the bearings here we drive the sprocket. We attach the sprocket directly to this. So instead of this plate here, which is which is now that, like the chain coupler plate, we will put the sprocket right here so the motor ends here. This is a motor motor shaft over this motor shaft. Is this round plate?

A

That's like a yeah! It's it comes with the motors you can buy that off with the motors. Let me show you that on the surplice Center no surplus Center has it no, but definitely the wiki has this as the.

A

Hydraulic motors, the specs for this motor on the wiki. If you want to take a look at that, not here.

A

It's a forty five point: six cubic inch hydraulic motor- that's that's what it is shown here. Let's see if it appears in surplus Center; no, they don't have it anymore, it's out of stock. But if you go to forty five point, six.

A

I wanted to show the the played that this doesn't show. Oh yeah here it is, you can see in this thing: that's the plate that goes over the shaft, it's another part, and that's how the motor looks all together. You could zoom that in what you probably can't, so this plate goes on top of this, so this plate on top of this plate. We would mount the sprocket directly so and just use this motor with a simple mounting plate. So ideas take this motor.

A

Put this put this still put this this wheel, plate on and directly onto this wheel, plate put on the drive sprocket, and that way we can. We can avoid the very long large structure here, like this whole Universal, rotor being having its own bearings. We can eliminate that for the purpose of having a tight compact tractor available to us here. This is good as the universal rotor, because now we can directly attach different implements to the rotor. If you don't have these large bearings here, then you can break off the shaft of the motor.

A

These bearings here these two bearings this one here and this one. There there's a nominal two inch bearings: they provide the stiffness to this and the shaft here, and here I, just put a bunch of these clamp collars on so that you don't have axial motion, because these are not like there's. This is a plane shaft.

A

There is no no seats on that shaft that shaft could slip in and out so I'm just using these two to do the axial loading and because the tracks are on the ground, and this sprocket is not driving things directly like, namely the ground. The axial torque on this motor is very low, so it's acceptable.

A

The axial torque, the high axial torque would be would happen on the actual idlers which have the larger clamp collars on them, like which you saw underneath the tractor, which was, let me show you that again so axial loads are gonna be high on these are this is the thing that's actually holding this clamp here is a powerful clamp that holds the axial motion maintains the axial stability of the of the drive wheels like this shaft is not going to move back and forth here, because it's held by this clamp one on each side of the tractor.

A

So what you're noticing here is that we're just using plane, shafts no keyways, clamps interchangeable parts so totally different than most things that happen, because we're using three inch shaft here and these three quarter bolts I mean this is very powerful. It's got. I went through, like all the calculations, like clamp force of all this stuff, it's on the order of tens of thousands of pounds. So in theory this should not move and so forth.

A

So you can look at the older tractor design documents and tractor genealogy to the regarding the work on the bulldozer from two years ago to see more of this action, the actual design process so.

A

Getting back to this document so part library creation, let's create a part library, so we talked about loader arm design here so different parts. So parts let's go through the parts. The platform.

A

Comment that we can make right now, as you can probably use just by what I observed in real life I mentioned, the power cube is now about two inches too long to fit or not. No, actually, we got to go from scratch. You take the platform how you design a platform. The requirements are for the platform. It has to be long enough to hold a power cube.

A

So these would be platform requirements.

A

Long enough to hold them.

A

To hold power cube 30 inch long by 20 by 20.

A

It has to be wide enough wide enough for the power cube.

A

It has to be such that the overall width does not exceed Toro dingo, so whatever that may be, if you can look up what the specs. What's the width of the tour dingo bass tracks I think it's 42 inches, but we want to shoot for that industry standard as a tight compact machine.

A

So I can erase this other stuff here. So that's the platform, just a nominal platform here.

A

So people of that general idea here is: we've got two months here: September we're at August, 30, September, October, 27, that's about nine weeks away and we've got the build at that time and we're gonna kick some butt on it.

A

So what we're doing for the next two months is what I want to do is try to kind of have all the people on our team be become product owners of one part of the tractor, so we can follow up consistently and make sure that all the necessary design work gets done, we'll continue filling out the development template, the development spreadsheet and we're gonna go through all the different steps like instructionals and and Bills of materials.

A

So we'll all go through that whole design process for this and over the next two months and I am seriously looking at adding the the gasifier to that. We have the gasifier sitting in a shop the worst-case scenario: if we don't get to build a new one, we can use the old one that works and we have to connect it to the engine. So we can demonstrate that we're running this tractor on a gasifier using charcoal and a third part is designing the solar power cubes. So we can go slow using solar power.

A

So a very tiny power cube. That's just attached to a solar panel. So right now, because we're in good shape on the tracks and this this design work. We can do those. Those are simply additional modules that if any new person arrives on a team, we can get them on those parts immediately, and hopefully we would have enough time to design a couple of implements like I'd like to see if we can actually get a backhoe attachment in the next two months. I mean we built those before we know how to do that.

A

It just takes the design sitting down on free CAD to make it happen. So we're gonna go very ambitious. It's this crazy eco tractor, build which can be small, solar powered and charcoal powered, and it's because we have salam on the team. He knows robotics, so we're good. What we're gonna do is we're looking at adding the GPS and automation to this tractor, so we can actually computer vision.

A

So we can have like say you have an acre garden or something like a thing that you want to do, for a market garden or even for your personal home, like I, could definitely see that in the future the production gets decentralized and people are doing things because there's access to ready access to high-tech people can do like here's, my garden, robot, here's whatever you know just assistance like the humans, working together with machines like like a lot of people, are afraid of machines taken over the world or automation and artificial intelligence, but I think the more relevant case we should be thinking about is how do we actually work together with humans and nonhumans alike like as in human augmentation, so that we can?

A

We can have additional powers, so, at the end of the day, we focus on what's important to us. So this is the context with which I'm thinking about this for us right here, one practical application. If this actually works- and we have an automated one- one acre garden- that we can actually manage because we don't have to spend long hours, weeding and I mean weeding primarily, is the thing that kills you there.

A

When you have a little autonomous thing that just going on solar power, that's just doing the work for you. That's that's a good idea, that's a big idea, and it's like technology is all out there to be able to do that so to distribute that technology throughout the world, as open-source I think makes a lot of sense, and it could help a lot of people, of course, using.

A

Of course we have to use technology wisely, because you know we have crazy technology today, but it's not being used wisely, so we always have to be wise about it, but just getting back right to this part library, creation with does not exceed Toro dingo.

A

This holds the holds. The motors on one side holds the two motors to drive motors.

A

Ok, so that's and then of course you attach what else needs to happen. You attach the idlers to it.

A

Attached to the tensioner to it.

A

What else attached the loader arms.

A

A person can walk behind it or sit on a platform, so maybe you attach a platform to this person walks behind.

A

Or rides on the platform, so did I miss anything for the requirements of the this platform. I don't know, but it's gonna be well. The first thing is used. The water inch by 4 inch square tubing square hole tubing. This stuff. You did for the free cat test.

A

Let's do that now we also have 1/2 inch wall. Tubing also exists.

A

We not to do that. We can do one quarter inch, but just for your reference to half inch wall, we also have that, for now we can stick two quarter inch now the half inch wall that would be for very heavy-duty machines. Now, if we're talking about a 16 horsepower tractor with 60, the quarter inch totally. Does it?

A

If we're gonna stack a few of these together to make a 64 horsepower tractor, the quarter inch still will do it, that's pretty strong, and if we have the capacity and freecad to do finite element analysis, you can see the belding bending forces like we can get into that as we move forward on freecad to actually do computer computer analysis of what the strength of the tubing is, how much it will it Bend when you're when you this tractor wastes so much or it's got such a load on it or something.

A

So we can do that with in freecad. That capacity is there.

A

Okay, so that's a platform. So that's that's that thing: I'm gonna erase the wheels here the platform from the side looks like looks like this and from the top I think the easiest thing to do.

A

So that's kind of how it would look from the side from the top I think we can do something like which we talked about before just three bars, something like that I mean we don't even need the third bar I mean, probably the even the simplest. Very very simplest would be just this, but we could do different versions of this like.

A

Why do we have three bars before, because we needed to attach the universal rotor to it, which requires three, because it attaches on two points, but here we can possibly do something like this. Maybe I don't know, maybe one in-between here that would work, but that the one from before was like this. It was three of them, as we discussed before so.

A

This is what we use before.

A

And that worked I mean the idea here is: what's the lowest.

A

Lowest means simplest that we can do to achieve the task. I mean. Would this be sufficient enough for two thousand pound down to two thousand pound powder? Then probably this micro tractor is gonna weigh like a thousand pounds altogether. Maybe fifteen hundred pounds, but that would be I would guess that would be probably strong enough right there and try something like that. So the thing is once we build this once again, like we talked about the work flows within freecad.

A

If we find that we need some other features in this platform, we can we can do that, but for now we can I think we can just try. Try this thing with, of course, the fact that, if need need needed, we can readily upgrade to some other versions of this within free cab. So so that's platform now the platform in order for it to make sense, you have to fit all the other parts to it to actually verify it.

A

But if we're dividing all this work up as soon as we create the platform, we we leave it and, let's see sketch form like no. We are using the tubing from the tubing library, so we can import the different lengths of tubes and and they come in four inch increments.

A

So we have the whole tubing library, and that would mean that we we simply import or merge the tubing into a document and create different versions of this, but we should start with something as a working platform so that we have a thing to hang on to hang other parts onto it. So, let's get onto the other parts, so duplicate the slide.

A

So there's the platform. Let's talk about idlers so.

A

So idler requirements.

A

That's the three inch shaft, because this will allow allows us to be scalable fully like two large machines, like ten ton machines. Three inch shaft for idler use that once again the 12 inch like what I was showing you about the 12 inch idler like we did before do a mounted the same as last time mounting is via a plate.

A

Use like what's what standard is we work on a four four inch grid pattern, so do something like an 8 inch 8 inch would allow you to get two bolt holes in there say: 8 inches by 8 inches would be the minimum, probably more like 8 by 16 inches, but whatever plate ISM.

A

That plate is 1/2 inch and it's 8 1/2 inch by 8 inch by something like about I, mean I, would say about 10, inches or, or so let's say, 10 inch enough to just put that hole in there for them. For the shaft, the shaft does not spin in the plate on a plate. The bearings are what spin, so you can look at the old documents, so that would be let's see. So we did some various configurations here. There's the I mean there's the document right there on this page.

A

If you go to the bulldozer page, there's calculations, design notes, you can look at all the stuff on the idlers and everything else over there in these old documents- and here we we did a development template and we had some of these.

A

Some of these filled out, like you, see the 10 amines, though it's all filled out and so forth, so we were at 17, 17 percent done.

A

That was the working document and so forth, but yeah definitely refer back to the bulldozer design document. To also we can close this one.

A

So I'm gonna, put down refer to 2014 wait was that 2014 that might have been 2015 bulldozer dock. My house 2015 yeah two years ago, which is.

A

Now the idlers once again refer to the design doc.

A

Twelve inch idler, also use I, mean replicate.

A

2015 design we're done do that I.

A

Think that's all we need to sand that replicate the 2015 design because they work and do the 12 inch version, not the 8 inch version. We call it the 12 inch pipe section, the pipe the round part is 12 inches.

A

What else here? That's it next I, don't know what else to say about it: duplicate, slides. So, let's go to the idler tensioner.

A

So that we hear we're evolving the 2015 design, so do the Achmed design.

A

From session three.

A

From tractor session working meeting three four: that the way you mounted make the shaft make the shaft.

A

Pivot, make that a two inch shaft when I say two-inch I always mean one and seven-eighths, and why did we go to one and seven-eighths? It's a common size that you can get, but also it fits.

A

We did that because it fits inside two inch schedule, 40 pipe two inch schedule, 40 pipe or maybe it's actually I, don't know what what pipe is that it might be scheduled 80 but but the we did it, because we can make easy collars from pipe for it when we were when you're doing various designs, when you want to put the collar on that.

A

So that's why we used one in 7/8 and two-inch would not fit a 2-inch pipe like a two inch pipe would not fit the two inch size, so one in 7/8 is a loose fit around two inch. Probably that's that's just historically why we used one in 7/8 and then that seems to be working well for a lot of things, which is why we just use pretty much for everything you saw when I say 2 inch, I mean one in 7/8 and that's what we've been working with make shaft pivot, one in 7/8.

A

Create some tension or some some tightening mechanism to get that thing. Attention.

A

What I would suggest for that? The roller that's there I would also suggest using one of the eight inch do the one one of the eight inch pipe create a roller, so that thing has to roll the tensioner thing. If you look at this here, let me give this professional design on this page here so right there, whatever that roller is.

A

So I'm gonna draw that roller in there. What I would say this just make that at one of the eight inch make that an eight inch.

A

Eight inch roller, so that means eight inch pipe. The eight inch pipe that we have with two bearings.

A

Just like, basically, the which is same as the idler so essentially we're replicating the idler from the the eight inch version. So I could write essentially replicate a 1/8 inch idler.

A

So here in this version that we're doing here we're doing the 12 inch idlers here, a little bigger. So that would be we like a little bigger there, but that would be that something like that around there. That's the here, that's 12 inch.

A

This is the 8 inch, but since we already know how to do that, eight inch idler thing we just use that. Why not and then see what would happen in order for this to be a stiff, a nice nice connection, this thing has to go straight like when intention has to go straight up and down the easiest way to do.

A

It would be if you put a shaft between the two sides so that it's confined well and that shaft is just fixed, so maybe like, if you look at from the top I'm gonna draw the top view of this. What I would suggest for stability, like symmetry, is a good design principle everywhere in nature. Symmetry is biomimicry. You want to use symmetry whenever possible, so so, looking from the top, if that's the tractor with the tracks, have the tracks on the sides.

A

What I would do so so? Okay, the first thing to note, is that the idler shafts everywhere they go for the wheels they go through the whole frame. You go through the whole thing why to point-to-point attachment its stability, so you got those shafts they're a little thicker than probably they should be.

A

That's the first thing to know they they span through the whole thing. I would suggest the same thing for the idler, so that say the idler is gonna, be there.

A

Make it go through the whole thing and that's an easy way to make an attachment, as opposed to trying to do like this one thing on one side, one thing on the other: it can be a nightmare to make that actually stand up straight, whereas if you you do this, then the tensioning mechanism could actually be a lifting, so I'm gonna make a point there that so in order to tension that you have to lift that bar and it would be easy to lift that bar by just jacking it up through some kind of a tension ER right here now.

A

This is safe, because this once again, this bar does not spin none of these bars spin. What spins are the actual idlers themselves? The two bearings on the on the idlers, so I'm gonna put a note there that this can be lifted for tensioning.

A

Okay, so that's that's a design challenge there, because what happens there that has to not interfere with the power cube. If we did it this way, then I mean the power cube still has to go here, so you can see how there's conflicts like the power cube needs to go in and here somewhere.

A

So so maybe we put the idler. So that's power cube.

A

That tensioner, because that power cube is probably gonna be here I would put the tensioner all the way up front.

A

In other words, you have the drive in the back, but the tensioner is going to be all the way in the front. That's what could work okay, so either tensioner next real quick slide duplicate slide. Now, let's talk about power, cube mounting power, cube mount.

A

And that has to be carefully designed like how do you exactly the amount it is it like a bolt connection through the bottom of the power cube frame, in which case we got to put bolt holes in the bottom of the power cube frame. There are at a specific, spacing of four inch intervals, based on a interval spacing of the holes in the tubing that we have so.

A

So power cube requirements.

A

Oh I should probably share. This document is probably not shared, so you guys want to know anyone can find that it. That's good excellent good job.

A

Main considerations are the motors tensioner idler. Well, the idlers are on the bottom, so they won't interfere motors, tensioner, loader arms spin around it.

A

Fit with it, it mounts to the base. Through the platform we called the platform, I guess the frame platform. What do we call that here? We call that platform called this part. The platform so mounts to the platform on on four inch spacing.

A

On multiples of four 4-inch inter-college, four inch interval hole spacing so when we designed the power cube when designing power cube.

A

Consider mounting to platform, in other words, you're gonna, have to put holes in the bottom of the power cube.

A

Or we can just put like little holders on a platform, so the power cube just comes in, and it's not even attached, it has to be attached. You got to bolt it down or it's gonna fall off when you're going down a hill or something so bolt hole pattern for the power cube.

A

What else about the power cube? The main thing is going to be how the loader arms fit around it, because somehow they have to fit so loader arm geometry. That's that's! Gonna! Be the next critical thing: there's power cube mounting!

A

What's the order of this design process, if people are working independently on the different parts, they're drawing up the parts, the start is that we cut out the small parts as possible, so we have to break it down and to break each of these into as small parts as possible and and have everybody go at it. So the last main main module is gonna, be the loader arms. Oh the other, some other other things to consider power cube requirements is that the hoses like hose routing to control valve you're gonna have control valve Plus.

A

Motors has to be feasible, other things would be like the exhaust is not blowing an operator.

A

Some practical considerations, the starter, the pool cord starter, pool cord or switch starter, switch I like the pool card, because it's simply enough to worry about a starter, and it starts right up this engine at least starts right up, start pull chorus which is accessible so that, if you want to yank on it, you're not hitting your hand into a frame.

A

What else? Just basic geometry considerations: they're primarily taken care of in the power cube design itself like the different geometrical things we've considered already about the power cube, so that's I think that's about it. Oh wait! I did this one instead of this, so let me reverse these. So loader arms.

A

Loader arm requirements.

A

They are mounted as far back as possible for center of gravity like if you're lifting a heavy thing you want. You want to be able to lift as much as possible they're mounted as far back as possible.

A

They have to be engineered for their geometry. They're gonna have to be a pretty specific geometry, so we want to use something like use. Maybe 2.5 inch, hydraulic cylinders.

A

Use they have curl on the curl cylinders on.

A

Loader attachment plate on attachment, quick attach plate, so be a quick attach plate.

A

So quit has a quick attach plate for rapid mounting of implements.

A

And we should go to possibly the Bobcat standard.

A

So we can Google that what that is, I think what we want to do at this time to be interchangeable like if we make this machine happen and we wanted to spread. It would be useful that any other standard implements that you buy at the store can fit on this machine and that's they are typically attached using the Bobcat standard. It's a very popular standard. That's used! It's a certain geometry of the Kwik loader quits quick attach plate that allows quick, interchange of different implements.

A

So I think we want to consider that at this point, because it's a standard interface, we could possibly do too because, like two modules, one one quick attach plate would be the Bobcat standard and another one would be just a standard hole plate like we're using like the platform both allow different types of connections. The Bobcat standard allows for rapid with you.

A

Do the bolt holes that's a little longer because you have to put on a bolt and tighten down the bolt, that's not as easy, but it would get you more flexibility for attaching all kinds of weird weird implements or just things that you don't even have an implement like if you even don't have an a quick attach mechanism for something you can definitely get bolts through something and make like a jerry-rigged attachment for some weird thing that you're doing so the whole plate is, is also a good idea.

A

It's what we have on the let's see on ax. If you look at the last tractor here, these ones- oh yeah, this one here, that's what I mean by this quick attach plate just has holes in it so that you can attach anything through the holes which could be a wide variety of things and this crazy freak here yeah. We drove that around a little, but it wasn't really practical. It didn't have good balance and the low yeah just the loaders. You got to have the proper geometry and when you're working with us here.

A

So when you look at this, this looks kind of cute, but and has the tracks, but it's so heavily front loaded. It's just like too big and bulky for what we wanted to have the cab at the front drove that around a bit, but we just took it apart.

A

It wasn't really super functional, but we did did do this thing where we had to power cubes on one was the main power cube in a second, when we just hung it on the back using those 4x4 tubing power cubes, which right now will be much much lighter, and that's why we were considering the four addition of four of them. But this is a really fun engineer. Just really brute force way to do it, and- and you know it worked- you can put things on this, but the geometry considerations, it's being off balance so much.

A

It wasn't practical. So going back to this loader arms. What we want to do for the loader arms is do a very precise geometry which allows us to have the highest lift and the largest weight weight, carrying capacity, and so like minimum 500, pound load capacity. I mean that's not a lot really I mean minimum. We should probably go for, like maybe 800, but probably maybe 800 or something we'll see, basically by the center of geometry center of weight. What what?

A

Basically you can lift up, because the cylinders could do much more they're, probably going to be able to do thousands like 8,000 or something for a 2.5 inch cylinder but you'll just tip forward. If you have something too heavy, so it's it relies on how much how your weight is distributed through the machine.

A

So 500 pound load capacity and carefully worked-out geometry, so we're gonna have to do that by CNC, cutting or cutting somehow, not not those straight tubes. We can use maybe some parts of a straight tube for a part button, but the geometry has to be pretty precise. Otherwise the machine is all of control and not really functional so carefully designed loader geometry.

A

So that's that and now, let's just talk last thing before we wrap up here: let's duplicate the slide, so so. The next question is: how do we go from this one? If we make this 16 horsepower thing, how do you go readily from that to a larger tractor so scaling?

A

We talked about that before so main question is: how do you go from the 16 horsepower to 64 horsepower tractor well, probably for a small machine like that, if we're making it very small, you don't want to put more than one power Cube on it. If it's a walk behind, so keep it at 16, but but with the power cube itself, make the power cube.

A

The version where you have the four outlets with four hydraulic outlets.

A

To support four engines or engine pumped engines pumps, so what we were talking about before which we didn't build in a current power cube, is the current the 17 point. Oh eight right here that just has the tank we didn't worry about, putting in other other openings to that, because this this power cube is going off that's going to Utah, where they don't need other outlets. They just need to run the brick pass. So there's just one there when we build the next iteration build it with for support for four and let's go back to.

A

If we go to the tractor Construction Set 2017.

A

Now, let's go to the first meeting I think we talked more about the scaling and the first meeting.

A

So let's just go through those slides they're about the different ideas that we talked about. Okay. Well, how do you go from one unit like this?

A

You know this is we're saying one frame etcetera to multiple ones. Well, what would be the easiest thing to do?

A

One way to do I would say for the large tractor. We could probably do like this version right here- articulated version. That would be an easy thing to do, in which case, if you have articulated steering like that, you wouldn't necessarily need to have steering's. You wouldn't necessarily need a steering cylinder like right there in the middle. If you have control over the four tracks, so I could see an easy implementation of this one.

A

You basically double up the width of the platform, use the same tracks, just extend the shaft so basically replace the shaft, and instead of using the thin frame you'd do a wider frame with two power cubes side to side, so I would lean towards this kind of a configuration and see if it's workable, to create something like this in that weekend workshop. Why? Because you can divvy this this, because it's symmetric the front and back are pretty much identical. What we can do, there is have two teams like.

A

So if we start with like one single frame unit, then maybe like even the first day, we can have another team just built just welding up the wider frame, so that, when we're done with the experimenting with a single frame tractor, we can put two together and two more together. So so two teams can be working, one can be working on the front and one can be working on the back totally in parallel, so the workflow would be to build up the power cubes build the frames.

A

I mean all those the track modules, Trax, loader, arms, loader arms would have to be different and the idler could be. The tensioner could be the same in both cases the narrow and wide machine. So that's one way to go, I mean doable and let's see how practical that is, but the nice thing about this. So if we go to this yeah yeah can't really do that yeah. So if we go to, you know just enlarging this a little bit if we go to this design here.

A

The nice idea is the parallel ability of doing the one section and others section like totally scalable, so so say we build the the single frame version.

A

Yes great, we could I mean possibly the best when I think about this is possibly the best thing to do through that three-day workshop would be to design and build five power cubes and then keep the one single one just keep that as is, and then then other teams in parallel just build up the the double version and a double version itself could be a vehicle in itself like we can see how the weight balance is so that, if you have just the front section its usable, but it's also usable if you have the front and back section, so this is actually interesting.

A

It's like the I think I showed that I show that here there's another document where I showed the the two bulldozers pulling one another, and this is a similar concept. Can that be practical? So if you need less power, you can use like for a small application. You just use a single single power, cube 16 horsepower for larger. You do 32 horsepower with the double version and then the quadruple version for 64 horsepower and once again, the advantage with attract units.

A

If you have independent wheel drive on each track, you might be able to not have a steering cylinder right here. Just typically, what happens for turning is two cylinders, one on each side and you basically bend the machine, so he can steer, and maybe we can actually do that without, even though so, which would make this this very, very simple, to implement in practice. So that's interesting now what are some other options?

A

So here's like this large tractor with track steering so we talked about this so maybe going even wider on a single frame, so you'd put the four power cubes on this thing, so this would be even wider.

A

I'd prefer. Maybe we do this one, it's kind of neat to see going from one tractor to a double one, to a quadruple one, that's that you can reconfigure as opposed to this one. If you got four, you can just split this into a two power cube version, so this might be interesting, we'll see and both like. If we do, the solar power cube version. Basically a solar panel with a small power cube, we can drive either the small one or the big one. It's just how fast you're going to go.

A

They're gonna go very, very slow, but still like. If you talk about autonomous garden tractor Inc, say a leader or pulling behind you like chicken tractors or Pig tractors that pretty much graze on a whole field.

A

You wouldn't need fencing, then, for them, that's the advantage there, but for the no fencing for the animals, you just pull them around in a cage. That's the kind of application you can do with a little solar power cube, so you're running a hundred percent off solar power, and then, when you need the tractor for other things, you can just turn on the engine and let the animals graze in that one spot for a little bit. And then, when you're done with your task, you connect this.

A

The power cube solar power cube back up, so they can. The tractor can keep keep dragging the chicken or piglet tractors, so just some applications, but yeah I would lean towards this. Now, how do we go from if we design this version here, so Arturo dingo style kind of a thing? Does this lends itself to scaling? Yes, absolutely because we're using the very heavy shaft, so it can readily be scaled, so it's very, very heavy duty and still viewable for a small application.

A

I mean that heavyweight in a very small garden tractor is really good, because that means you're, gonna you're, going to be able to lift more. And how exactly is this all gonna turn out is all up to us. So here we have the two next months to design this and build it, and what I want to do is distribute all this work to the different people through the team. So, let's see who do we have here? Roberto, let's see.

A

Let's see, can you can you access the pictures yet or no you're not able to do those.

A

Okay, let me try the link again, how about that link.

B

Yeah, yes, no, no I come okay.

A

Let me just change that link in the document there.

A

Where is that documents of the reference.

A

See pictures so see pictures for reference.

A

All right, so that sounds good. So that's the basics. We can start dividing the different tasks to different people and Saturday. We'll get to doing this. Actually in real life now I mean what we're gonna do. I'll just begin copying and giving out small tasks. So if we go to the dev log, if I just copy and paste everybody's name into the document- and we want to divide this up and I talked to Joseph about kind of like following up with people on their clear about tasks and and.

A

How we pretty much keep everybody on track. So, if there's a clear task list for for the tractor, we're gonna people owning those things and- and we can follow up with people and so forth, just standard stuff.

A

So here on, a scaling part try the the articulated.

A

32 horsepower each.

A

Articulated two times the 30 horsepower two-doors power each tractor. So that's they'll, be the preferred configuration there. This one here, I'm just gonna copy and paste.

A

Yeah, so let's, let's try that.

A

Scale up the frame scale up the length of axis.

A

Of facts, besides that everything else is just about identical, so scale up the frame scale up the length of axes, we're just widening it out, putting two power cubes next to one another, that's like the main difference between between those so we'll see if it works. We didn't talk much about wheel units, but we should we should design a wheel unit into the system so that when we do this testing we can actually attach wheels instead of instead of the tracks as well.

A

That would be a good good experiment, so it's definitely something we can do during during the project during the three days. If, if the stuff is just coming together like like, we want it to.

A

Let's talk about roll division, so slide duplicate, slide roll division.

A

A

Okay, so what I'd like to like to have people do is is sign up for a task. We broke up the thing in two different parts, but to be more specific, there's there's lots of very concrete items to do so. I mean as far as the cat itself goes. There's a universal rotor I mean the specific CAD tasks that are parts that can go into the part library. So basically, what we want to do is mix and match people to apart each here. So let's go with.

A

The universal rotor we have some of the universal rotor.

A

Yeah Universal rotor well anyway, universal rotor.

A

I'll then, do the motor plus sprocket.

A

There's a sprocket itself, I mean that's, that's a derivative motor motor pool sprocket as the motor itself, + sprocket, so motor.

A

There's eight inch idler.

A

There's a 12 inch idler.

A

I mean there's the power cube so and a power cube. We've got all the parts for it all most of the parts we need to finish it up, but the power cube integration still has to happen. So there could be a few people working on that, but we got a lot of those parts and I think some people are wrapping up those parts. So we have to pretty much get clear on just finishing up the power cube completely.

A

And then there's the with four outlets: there's the there's just the the null hydraulic power cube, no hydraulic reservoir power, cube.

A

Tensioner tensioner would consist of the tenth tensioner shaft, there's the idler and then there's the shaft whatever how we do it and then there's the actual clamp down so that could be broken down into a few parts. We can maybe specify that a little more there's shafts here, they're simple, the bearings themselves are a part that we want to have. There's an idler, there's bearings, there's bolts, so I mean idler is a derivative. That's an assembly consists of.

A

The bearing the one in 7/8 inch bearing.

A

There's a three inch bearing.

A

Yes, you can kind of like go through the parts that they, these are all combined to the idler. There's some bolts.

A

That all go into the I mean each of these ends up making an idler.

A

There's the 8-inch pipe in this prison with a pipe section.

A

And plates the round plate, so basically we can get very specific on breaking down each thing into very specific parts and that's what we should do for doing this designs. But I'll work on this more I'll just write down all the different.

A

Different parts, as far as I can break this down, so we can basically start a whole part library for this Saturday design. Sprint I'll work on that just basically get a whole spreadsheet of individual parts and then, as soon as we have the parts and people can go to the level of putting them into the assemblies and a final assembly, the overall assembly, so I think we can quit here. But everybody just please review this and study up the former documents on the tractor and the tracks, but I think we're pretty good on that.

A

The main thing to design is the loader arm geometry like where they go and etc. So we can start with a rough frame, so platform I mean platform should be clear.

A

We just have to decide where to mount the other things so yeah yeah, so people please review this hope to see you on on Saturday's design, sprint 12:00 to 4:00 p.m. on Saturday, and if people are people who haven't finished the parts for the power cube, please do that. We have to wrap that up. We want to have a complete model of the power cube for the for the tractor here.

A

The one we can move on to the I mean there's the power cube individual parts, but we also have to assemble the one with the multiple outlets so that it's all good for the track. The the 64 horsepower tractor, so okay, well I, think with this said. Let's continue this on Saturday. Please review this work and get started on any other parts. If you can, if you have enough information and we'll talk again pretty soon, so any any questions here, Roberto or anything or.

B

A

A

Yeah, let me do that, so this is tractor.

A

Were they not shared before or you just you missed the link or was it a bad link.

B

A

Okay, so, let's so all those ones, the tractor and just a couple of power cube pictures are: oh, no! No, let's see so. Let's look at the album's.

A

This was a separate album for tractor 17:10 and there's the power cube 17.0 8. So let me share that make sure the sharing on that is correct.

A

A

Sharing options should be shared, so let me just put that link in.

A

Our cube 17.8 two pictures.

A

Okay, see if that works for you now on page six.

B

Yeah yeah, it works okay,.

A

That's good yeah, so first set anything else.

B

A

Sounds good I know: you've got you're working on an instructional how's that going coming along they're.

B

Pre-Cut forums, yeah.

B

B

We simply assembly do workbench mm-hmm.

A

B

Were there is one one person who could try to import parts but importing more than one visible object and I'm curious? Because.

B

That to be able to import assemblies or modules into the into the master Cup, so.

B

Find something interesting.

A

Okay, um yeah, what I would say, maybe maybe for now I- would suggest just if we focus on just what we know already, because I mean we're gonna be discovering new things forever, so I want to make sure that we give this thing out to our team as soon as possible, so maybe just focus on what we know alrighty with a simple, simpler stuff like level two like we talked about, maybe like don't I wouldn't say. Maybe don't worry too much about that for now, because that video is already going to be pretty complicated.

A

You know would that sound good.

B

You could use the the first workflow using the March, because.

B

The level 2 for buying the the Warfel that I'm I'm working on mm-hmm.

A

B

It's not it's not a simple procedure. I mean it could be difficult to follow for.

B

A

B

Know, if you, if you, if you saw the script yeah.

B

It's it's a little I think that it's it's much more complicated, that the previous workload, that was merging parts and just assembling random way, mm-hmm.

B

So now some speed for the teamwork.

B

A

So, are you thinking that all together the assembly to workflow is just really too complicated, like your butt will be the replacement at that point, I mean so I mean. So what has changed? I mean you just thought about it and what it it's not working as well as you think, cuz I mean I know you are very excited about it. Is it just the difficulty level.

B

B

Going to take their time, yeah.

A

B

Exact procedure, because it's not as.

A

B

Do the video anyway, but I, that's because I was trying to find another approach for the assembly process. Mm-Hmm.

A

B

That that point of may be able to two main modules separately from the master cut and then be able to import them. That I think that it's more important at this point that the new features that we can.

B

A

Thinking that the ability to have more people participate, just with a simple merge, is probably going to get us better results. At this point,.

B

We just can merge the whole team. I know that it's not better right.

A

Yeah yeah, it did work. So when you merge the whole file, do the separate parts remain in that file? Yeah right? Sorry, if you merge a whole document, I mean the merge function appears to get us the essentially like the module import, whereas the assembly doesn't get us the module import in that same way, right.

B

Assembly option that what means that we only import a single part, but that part represent module.

A

Right, in other words, it hides all the detail right yeah, which was what I didn't like about that workflow so like, for example, right now in the brick press. I cannot really work with it like a manuals file, because it has the hall parts that when you click on it, the whole thing disappears instead of showing the individual parts so and that's important for our expository work like when you're actually trying to see how something is built.

A

Yeah, okay, well, no I mean I. Agree with that. If there's that part where, if you just simply merge, then then you're just still able to expose all the parts which is really good, yeah, yeah I, don't know yeah I kind of agree with you on that.

B

A

No I mean you're right. That's right! More people can do that. It's easier it! What's the disadvantage of the merge, because then in the assembly to import you're able to replace the correct position right.

B

A

That's exactly right: that's what I'm thinking like it! What so, for example, what we could do we import an assembly then put that assembly into place, and then we can save that assembly and overwrite the old files such that the new assembly is in the correct position in the overall file. Does that make sense.

B

A

Yeah yeah, that's right and I. Think that's it. That's a very simple concept: yeah, let's see so, if you, when you import an assembly, is it still easy to like? Do you have to then move parts individually or can you move the whole thing.

B

Just you have to select.

A

B

The parts that you want to move go to the property panel and into the placement property. You have a final part of this of that property. You have a filter with three points: I, remember you click on that and that button and you can change the placement for the for all the selected parts. So, but but what? What is important there is that you have to do to mark one one option, which is to apply incremental changes for the changes. Then you can. You can rotate in the axes.

A

huh Well, it seems like, and then what you might want to be doing is actually an instructional for that workflow.

B

A

Well, I agree with that. Okay, so maybe let's do this. Why not yeah? If we can move the whole assemblies around it's and it's easier I mean I, mean I, believe you, because you've done it and now you're coming back to me and saying well, I, really like this other workflow, better and I know that Emanuel says says the oh yeah just do the assembly, but he's a solar warrior right now he's nobody can do what he does so so that's not really scalable.

A

So unless everybody goes through that intense learning curve like he has were not really able to work together right.

B

A

Exactly exactly but tell me a little bit more about how the teamwork aspect is different, so you can have all people work on different assemblies, you can and parts and you can merge them, whereas before we could only do parts and then one person would have to merge it basically import all within the within the assembly to.

B

To download the MasterCard and work along into the what he wants to do in the with merging parts and an assembly, we can still use the the constraints available into the semi to workbench. Like you, your I mean not importing using the Samba to orange.

A

B

We can constraint, we can rotate the parts and even even modules modules, which are already assembled I mean not fully constrain it, but just with the with the right position into the to the screen. Yeah.

A

B

And we can just the modules until.

B

Just put together and do the almost the same assembly.

B

A

Yeah so there's yeah I mean what you just said is a huge advantage of people can work on assemblies instead of having to download the master CAD and then put work on the assemblies in there. And then you get into all the potential conflicts of who's got the master CAD file right.

B

I I was reading that it is being developed, and maybe we can even ask for some new feature into the semi, suburban town, and maybe a lot of people would be willing to to help us.

B

A

B

A

No I think I agree with you, I think it's clear that I mean because of that limited ability to do the import, the Assemblies, that's very, limiting for the team workflow that we have so so the advantage of the former workflows that it's easier and it actually allows us to do more in terms of the assemblies being that that process being easier. Okay, no I, think I think we yeah go back to merge level, one okay, I'd, say I'd, say so.

A

Okay and we'll save the last one we'll come back to it. What it's when it's a time but but I, think what it appears is that there's a level one and really what what we were talking about level. Two and three like two and three have to be there together. You can't really have just two. You really need three right.

A

Well, the the way where you can manage somehow the conflicts when you're trying to work with the assemblies importing yeah like yeah I, mean the get like. Basically the idea that you don't have the conflicts of people editing like you check out the file, because that was the main issue. We were running into.

A

Yeah well the point being that I think that the point is maybe let's take that comment back, let's, let's simplify I think the point is, unless there's an effective way to import entire modules, we're not ready for assembly, yeah, right, I! Think that's the bottom line. Okay, we'll keep it as simple as that so yeah. Let's go back to merge and I like it, I mean I've done the merge, that's works great and then, when we do then is just when we go save the original source files.

A

We save them in the correct position, which is what I talked about long time ago.

B

A

B

Saving more versions for, for each part,.

A

So it'll be the the workflow there's so they're you I mean what, if you just wanna well typically, the workflow is gonna. Be that you update, like one part or a couple of parts so yeah that would work. You just move those two parts into place.

A

What's the placement feature in a property panel.

B

When you select apart.

A

All right, okay,.

B

Can you select one part.

A

You see my screen.

A

Like like, for example, pad or.

B

A

A

B

Now, okay and honor, and now where's the property panel there, okay yeah, you can see that and in your screen you can see where you only see place.

B

A

Okay, so just put the coordinates or that's.

B

A

Mean this part.

B

A

Nothing happens when I, let's see with the three points, nothing happens there, I'm not getting anything from the button. Okay,.

B

Yeah, sometimes that that happens to me of two, but maybe it's for the the part we are trying to work. Can you maybe just create a cube to the file.

A

Yeah- let's, let's see this other one here like this one.

A

B

It will be interesting if you can open a MasterCard or a module. Maybe the the filament winder okay.

A

Okay, so would I go to the part library master index or here to try go to here.

A

A

So, which one do I want.

B

B

B

B

That review you can just select.

A

Okay, like say that one.

B

What who have seen the motorists and just select of the one of the fathers.

A

Okay, say spooler yeah.

A

And just select the father, okay say the spooler.

B

A

I gotta open it up completely.

B

Update folders.

B

That will activate the placement yeah.

A

B

And now you, okay.

A

B

B

Extend the placement panel see the.

B

Apply incrementally changes to mark uh-huh and.

A

What does that do.

B

Changes particular changes, maybe in the.

B

B

A

B

Example, do whatever you want, maybe.

A

B

You can just an axis X, Y or Z. Yeah put an angle. The center.

B

I'm not alright,.

A

B

I never used the center options there. Yes, yeah.

A

I mean this looks good I mean you can select the whole whole assembly and just move it around. That's good! That's what we need.

B

Yeah you, you have to uh play the changes.

B

A

There we go okay and if I selected, the folders that would not work.

B

A

A

All right, yeah, if I say I, selected that three yeah blanks it out: okay, yeah, okay, yeah, no I- think that's it. So maybe what we do is is folk refocus on yeah. Let's just get a good documentation, good instructional on this whole process, and you should use this exactly as the case to show it with yeah, hey yeah, that sound good.

B

A

Let's do that yeah, so yeah we'll scrap that for now, so that that makes it more simple and we'll go back to a little bit simpler technique. Mm-Hmm yeah! We can do it, it will work, it's just a different workflow and it's simple to understand so.

B

A

All right we'll do that. So basically, the idea is that we have to get everybody on a team up to this level and then say everybody can do that. We can talk about other things, but we got to get everyone to this. This level.

A

Yeah yep, okay, I agree with you, so that's that's pretty good! So, let's, let's finish here then yeah that sounds good yeah, so continue on that and they'll be good like as soon as you have a script for that that process. Just let me know so that we can go through that and then we'll publish that video instead, that sounds good. Okay, okay! Well that sums it up so we'll apply it to the tractor. Is there a case in point?

A

So that's that's important and everybody will be doing that and will be pretty effective at doing it, so that the next step is generate all the parts and we can start importing and making assemblies in the independently and then we save both the individual parts and assemblies and then import them into the finalcad. So as long as we have a good master part index and a good part library we'll be able to work rapidly on the tractor sounds sounds like that.

A

B

A

Sounds good, so thank you we'll finish this meeting here and we'll see on hope to see on Saturday noon to 4:00 working on the tractor. Okay, take care, look like.