Open Source Ecology Development Team, 5 Aug 2017

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From YouTube: Power Cube Design Sprint - August 5, 2017

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See http://opensourceecology.org/wiki/Power_Cube_v17.08

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A

And welcome everybody to the Saturday August, the 5th power cube design sprint. So we've got a working document couple of working documents here now. Clearly, if you go to my log you're going to access them and those are, let me actually share my screen if the power cube design, sprint 2017, to go to my log click on that, and let me paste that into the chat.

B

A

So if you look into the chat, that's the design, sprint document there. You click on that, and let me also share my screen. Ok, so that's the design go into going to the edit of that design. Sprint power cube document right below that.

A

You see all the placeholders for the CAD, but that's once we get to the CAD, but before that we've done a little bit of conceptual work with you, click Edit on that that Google Doc, please go in there because that's going to be our working document, I just went in there I'm seeing one person so other people, please please go in there.

A

I'm also sharing sharing my screen for anyone. Who's got enough bandwidth there to handle it. Yeah. Okay, so I see most people in there and, let's make that make sure that's editable, so the permissions are should be normally when we work anyone. Anyone can find and edit so change, I'm changing that to public on the web. Anyone can edit, so you guys now can can edit this document. So so, let's, let's go right into it: design sprint power, cube 2017 noon to 4:00 p.m.

A

so we've got almost four hours to go so on a power cube, so we're gonna power cube, which of course, is going to be the power source for the tractor. It's also the power source for the CB press and everything else, so a very important part and we're going to see and see cut it.

A

Now, let's skip to the page number three there right to number three just to show what what's what's been done already, but the existing power cubes we've done both structural frames and kind of these angle frames the structural tubing with the hole, so you can attach other stuff and practice. We found that it gets really tight when you start attaching everything to it.

A

So we're going to move away to to just non structural where you don't attach so many things to it, but the standard design is you get the engine the pump the hydraulic reservoir fuel tank is actually included in engines that we're going to use so that's cool and the in the last version. So the power cube. Seven is what you see there. You had a little control town where you had the plug in for forward and return return lines, and you had the throttle and ignition now in the minimum viable product.

A

For now we can simplify further the minimum. Minimum version is a pool start on that engine so that engine has both electric start and pull start and I'm. Thinking, like just for simplicity, sake at the very very beginning. Just do the pull start already be quick about it. Don't even need a battery in that case and I believe the fan will work without the battery as well.

A

Once you start the engine I'm pretty sure the fan would work even without a battery, because the engine has its own charger, of course, to charge things, but the last version was a nice compact design.

A

Well, let's take a look at power: cubes 7, that's before the the tubular structural frames, nice symmetrical design, 1, hydraulic tank, 1 1 fuel tank, but the disadvantages are that it's kind of tight once you get to the engine the the pump, which is on the bottom, it's covered from 3 sides, so it's kind of hard to access, so it prevents you from being really modular on the pump like we want to do now, and the the persistent problem has been the mounting of the fan to the cooler I mean it's kind of tricky.

A

You have to really understand those connections like a novice like I mean all that the bottom line is most of them. The connections of the cooling tank came off a lot of our power cubes. It was just a persistent problem. It's for a novice I think it's kind of because we have novices pretty much putting the stuff together during the workshops. So it's a little beyond, because you got to understand too much about the mounting. It's it's just a little tricky, so we want to try to pay attention more to that and simplified if possible.

A

Now it's also the other issue about the former power cubes. The 27 horsepower engines like the whole batch of engines are just just about all the engines. We got had trouble just just trouble, starting like pump priming like we always had to have to like. Somehow there was a even though it looked like it had gas it just wouldn't start so. I always would would open it up in the back and pour some gas down down into the carburetor and start it stuff like that.

A

It was I, don't know what, if it's, the the engine or the the fuel tank is too low or something or whatever, maybe there's but I mean that little bulb had feel in it and it looked like everything was Goodman, just wouldn't start anyway. So that's that's where we were at that time. So now power cube continuing a little bit from the meeting we started on last Tuesday, where we talked about the tractor, so we're talking about power cube with a gasoline-powered engine.

A

You can look at the power cube genealogy, just to see all the work. All the different prototypes have been done, including the micro power cube or power cute, as we call it which, which you can also make into solar-powered, and that power cube page on the wiki actually shows a video where we show the little tiny power cube, making half-inch making holes in half-inch metal with the iron worker and driving the five thousand-pound tractor. So it's still very powerful.

A

You can see that in the video on that page, but this time around we want to see NC cut, the frame which we never did before, but inspired by the by the D 3d 3d printer, where the frames are really efficient. We want to CNC cut the frame modular. Hydraulic pump is what Achmed mentioned as well, and I really agree with that.

A

We should try to make it that it's quick disconnect like literally just slip it in and out so you can use it elsewhere and then hyper modular power, cubes separate separate the cooler separate the hydraulic reservoir.

A

So those are the two major hyper modularity features, separate cooler, separate I'm, going to make note they're separate hydraulic tank, two main points, because those are very big. You know big aspects of the power cube if we separate I mean just make it so much more modular in a sense, then you can have like a you know like a pig like a piglet with like a pig with ten piglets, sucking on its teats.

A

You've got one hydraulic reservoir you're, going to have ten power cubes sucking on that hydraulic reservoir and the same for same for the cooler you can. You can design a cooler module where you plug in multiple power cubes. If you need cooling, because if the power cube is small enough or it's cold outside like you're in the winter, you don't even need a cooler, so so modularity on that is very useful.

A

Okay, so let's go back and go next page page page: four: let's talk about the modules that we have in front of us. So what we can do right now is take a look at in this design screen the next three hours get the diagrams for all those and maybe possibly finish the cat for all of them. So you can actually assemble the power cube later so frame cut out of one quarter by sheet and the the widths of the corners with like two inch widths.

A

That's that's a good standard, that's very strong, but we can talk more about that engine. So we've got the engine the. If you go to the genealogy, if you go to power cubes, sixteen eight, you can see the engine like there's a if you click on a genealogy and go to last year's version, which is 16.8, which is the power cube with the two engines in it. It should have a vom there. There's a file power, cube Bill of Materials.

A

If you go to the Bill of Materials you're, going to see the engine and everything else, all the parts that are in this power cube, there's the Bill of material so, for example, for the engine.

A

So let me just link to the BLM right there on the engine. You can pull off the.

A

Manufacture the websites, the sales websites or whatever of all the parts like the like the engine or the pot, so engine mounts are the engine has to mount to the frame. There's a pump so once again see the bill materials there's a pump coupler, so we want to do basically take to take that engine shaft and take the pump shaft and mount them and figure a way to put them together. Just a solid, solid coupler will work.

A

If we have some rubber mounts on like what we found is we used Lovejoy, couplers, solid, couplers, all kinds of couplers we've stuck with solid couplers and make some flexibility with rubber mounts on that on a pump I think the best strategy would be get a solid coupler, metal-to-metal one-inch engine shaft to the 5/8 inch spline shaft of the hydraulic pump, two pieces of metal welded together and then the play comes in when you mount the pump with some rubber mounts like there's a little bit of give, so that there's a little bit of play for adjustment.

A

Well, we can talk more about that later, with a hydraulic reservoir.

A

Integrated hydraulic return, so their hydraulic returns. What I'd like to see here is have a quick connect filter so that filters and other power cubes can attach to that. So once again, the piglet, the piglets theory here, one one hydraulic reservoir- you can have as many returned holes with quick couplers, just the standard hydraulic, quick couplers that are rated for 12 gallons per minute. Those could do to do quick connects into this piglet into this mother pig, so, okay, cooler, independent module with quarter by two frames.

A

So yeah, let's separate the cooler, so it's a it's a module that you can put like a big cooler there. You can have multiple mounts or multiple small coolers are a larger cooler, so you can have multiple power cubes coupling back to it once again, I draw it quick couplers. There are self sealing, quick coupling things that you just pull back and connect anything. This is. This is part of this Lego like modularity thing, quick couplers in hydraulic hydraulics.

A

Allow you to use instead of shafts and and shaft mounting, you have flexible hydraulic, hoses, they're, connecting components to one another. That's just beautiful! Okay, so let's get right to the overall modularity strategy episode. So let's talk about all the elements we want to have. Punk should be dismountable, as we said so. Modular I mean modular right, modular. Everything pump couples directly to hydraulic tank like instead of having screw in connectors.

A

You just do all the fittings and make them Quick. Connect adds just a little bit more to the cost, but at the benefit of modularity, it's very much worth it and a coupler pair. That's only like you know, like twelve dollars for a coupler, quick coupler pair, whereas the fittings themselves might be like five dollars or something so hydraulic tank is frame integrated. So so, let's look at this this strategy for the hydraulic tank. What we could have is one power cube that has a tank built into it.

A

I mean we can also mount the tank as a separate unit, but it would be very convenient if you're, using one power cube to have a power cube frame with with the hydraulic tank mounted right in that frame, so that the other power cubes can be tankless because, as I said in the last last time, the tank is one of the most difficult things to manufacturers, we're building them we're not using off-the-shelf tanks, because typically they don't have the right geometry: we're trying to be very, very custom so that we we get the power cube to the right form that we make that we need just like, for example, the last version, because the power Q, the the tank, a jog tank- was off-the-shelf.

A

It's just all awkward and just doesn't fit right. It takes too much space, so we make our own tanks, but you can save on making multiple tanks just make one and then connect multiple power cubes to it. That's a good strategy, so you can have one master power, cube other power, cubes tankless. Now the engine itself already has like a two gallon fuel tank in it. Something like that, so we don't need a fuel tank. That's a way way: simplification overlapping. So we're talking to right now: power, cubes, they're, super super modular.

A

Okay, so, as I said, cooler module is separate, gas tanks are built into engine minimum viable product doesn't even have a battery I'm not going to need a battery. The pull start is good. I read some reviews on Amazon. They say that the engine just starts every single time and it's easy to start so the engine seems to be pretty robust and it's cheap as anything 230 dollars for the 16 horsepower engine.

A

Okay. So now let's go to the I mean, so we can actually start breaking up the past. Basically there's the engine CAD. So so it boils down to let's get all this into free CAD. So we had some some stuff in in which you would call it in Sketchup, but we got to redraw everything in freecad, so it's just making it once again. The simple, simple files start with a simple placeholder files for all the parts so slide. 6 is engine CAD, so that means start with just into these documents.

A

However, we divide this up here, which we will explicitly soon we're going to put names to this. Take the go to the Bill of Materials. Well, let me let me paste in the bill materials again, so the bill materials which is on slide 4 that link there. If you take that build materials, that's where you look for what this engine looks like it's in a vom, so look at the BLM and copy and paste the the engine into this working documents.

A

We have everything in one place: try to pick out some some dimension drawings from various places. I haven't looked into that what all is available. We basically got to go on an internet and for each of these parts, click on them and see if they have drawings, if they do just place them into this document. So we have something good to work with or just put a link to it. Those specific diagrams are dimensioned fabrication, drawings or technical drawings, and then we go to 3d.

A

We reverse engineer that and then go into engine CAD and free CAD. So for everything we generate free, CAD, so slide 7 is pump. We do everything for the pump slide. 8 is the oil filter slide. 9 is the coupler which we have to draw because they're not going to you know we got to draw this up.

A

Cooler plus fan those are off-the-shelf parts, so first diagram and then reverse-engineer it into three CAD and then. Lastly, let's let's talk about the frame, design and hydraulic reservoir design, so maybe we could. Those are two things their major design points right now. So as far as the frame we've done them, essentially it's six times.

A

It's essentially the theory of the D 3d, which is six times a flat sheet, a flat side right and you put six votes together and you weld them and that's the most minimum power of power cube or or 3d printer frame or any frame using here.

A

In this case, we're going to we want to use a cool quarter-inch steel as opposed to eighth inch, because quarter-inch is going to be stronger for for power cube, which is going to end up weighing a few hundred pounds, one hundred two hundred kilos, maybe one hundred for the light one if you, if it's a single one with the master ones, probably going to be like a hundred fifty-pound two hundred pounds, two hundred fifty pounds, maybe the slave power cubes might be like two hundred pounds or something so so quite human handleable.

A

You know the engine itself is about a hundred pounds, so everything else around it is going to add- probably another hundred okay but okay. So let's talk about, we talked about the master power cube which has a built-in reservoir. So basically you've got the frame proper and then on the side of it literally, you have a tank, that's mounted to it. But how do you do it? You can design that, and this is where we have to well.

A

Maybe it's a good task for akhmad, but basically, if you do of the flat CNC cut out and I would not do any any bends here, because bends end up taking time, it's doable, but I mean it from my experience, the bends always I mean it's, it's probably easier to weld. It then bend it because then after you bend it, you got to get it at a pretty exact angle to make it fit right, and that takes time I mean. If you want to do a crap job yeah.

A

You can do it quick, but if you really want to do it fast, it's actually quicker to weld it then to bend it and the other thing being. If you're bending you need a metal break. Otherwise it's a pretty tough job. So we're saying: okay, no metal break, no metal press, we're just going to say we have a welder and a CNC torch table and that's how we do the frame. So so what do you do? So if you, if you're going to do it for integrated tank?

A

That's how the pieces would look this piece here. One of these frame pieces would look look like instead of being the standard cutout, it has a longer side for the reservoir okay. So it would look like this right. So let me do the white.

A

So that would be the cutout for one of the two sides and then the top side would be similar to this, and the bottom side would be similar and the other side would be just the whole sheet. You see what I'm saying so basically and then you're going to need a plate to cover this one side, but essentially going to have this this kind of piece times four and that's it, and then you've got this one piece here and the one regular piece on the so a frame has six sides.

A

This will be times four, then there's the right side on the left side. The left side of the is a filled piece just like. Let me start a new page.

A

So it's going to happen, so this is going to be one of these. One of this is the tank side tank side, which is just a flat sheet of metal, whatever the and the frame should be probably 24 inches, so 2 foot, let's see if we can make it fit, but everything here like the size and everything else. We have to determine that we're doing the proper design right now, as we speak in CAD, so it's easy so start with 24 and then, if it's too small for the engine, I think 24 should fit.

A

But it's going to look like this this piece times for one tank side piece and then there's going to be one regular piece which is just so that's just times one, but it's going to be just one of these right, so you got six frame pieces like that and that's your frame with a built-in reservoir now you're going to have to put a the closed aside on this there's going to be a closure on this side. So it's essentially going to be a piece like this.

A

Actually so we're going to have tank side that's times two, because you need this. This is going to be the reservoir. You need the front and back like six sides to it. So that's going to be this is going to be the cover. Does that make sense? Does anyone have questions on the frame or by trying to explain that, and we can make this like here like you, can make this as big a tank as you want. You can make like a smaller tank. If we keep it to a cube, then these pieces are identical.

A

If we don't keep it to a cube, then we would have to modify, have more unique parts, but this allows us to say a two by two you know say it say two feet by two feet:.

A

Using just three unique part count for the entire frame, including the hydraulic reservoir. Now, how simple is that that is as simple as it gets before we redoing the tank out of six by twelve tubing, which we first cut on a bandsaw and welded the ends put in all the fittings. So now this doesn't include the fittings. Yet so, let's move on to what the fittings would look like. So this tank is gonna, be feeding pumps and having returns okay.

A

So let's look at the reservoir design say this is the front pain of it on the front side like the wide side, because the reservoir is going to be a pancake. Essentially, it's pancake shape. That's flat shaped it's on one one end of the power cube itself.

A

Okay. So what do you need here? You need source lines and return lines, continuity of fluid okay, so in and out otherwise, you've got infinite energy. Okay. So, let's let's say the sources are here, so these would be like one inch pipes fittings you can put as many as you like. That's what I said you can do. One minimum is one for one power cube, but let's say we do. Let's do I mean four.

A

Actually, after the practical thing is, let's try to go for four, maybe and then four returns now the returns can be half-inch so smaller. But let's, let's try four returns like on a so. The suction would be on the bottom side and then the return would be on not on the top side. So you got suction here.

A

A

And then the return here, so these are just holes that are going to be torched right with the CNC, so this is all automatically placed in and then we weld fittings into that so that suction and this is returned- what happens at the return? So the return is going to have with quick, quick coupler.

A

So even if you make these, you can quick couple as many power cubes ii like slave power cubes, as you want to this, including them first master power view. So a minimum using one of these in operation and obstruction would just have a valve. What's okay, so here's one of these deals: I have not yet found a metal high flow coupler that allows suction.

A

So what we do is use valves and Ahmed is going to pipe in because man, he just knows too much- Ahmed you're, gonna pipe in there. Okay,.

C

What shall on yeah, no I'm.

A

Sorry sale again.

C

Why I have miniature that cubic is just one I'm, not political, just one piece, yeah bullion, Claire I, have coated all of this code. Why.

A

Do you want multiple holes.

C

A

Because assuming you're doing in the return, yeah.

C

A

I mean you can have one, but somehow, if you have multiple ones, there's going to be a connection that you have to elsewhere. So you can do the connection. The multiples here or you'd have to do multiples elsewhere. Right I mean you can have one, but I was thinking that I mean conceptually the simplest design. Is that say you want to put another power cube onto your tractor. All you need is the slave power, cube no hydraulic reservoir and just two hoses with a quick connector, and that's it no other fittings at all.

A

So this okay, so before this quick learn, what I would do here is I would do separate.

A

Filters because the nice small filters there I mean you can get I mean you can make a big filter, but once again, if you have a filter hanging on to it on to this, it's like a break point. You want to keep this closed. You can have a big filter and with multiple fittings to it, but it would not work well in terms of like it would break off easily. So it's very easy to put in a separate filter and separate return, its redundant very redundant on the filters.

A

But what if you have but ideas here is let's go to the next slide, because it's actually pretty important and we've never done this, and that is a modular filter. Okay, so let's talk about a modular filter augment. Does that answer the question or no so I'm going to the yes.

C

You know what okay.

A

So I'm going to the modular filter page so think about this. What if the filter was just a filter with two quick connectors? So you have you know you have a bunch of spare filters which is great for what once again like say your filter fails or you get a plugged up filter.

A

You just take one off the shelf and you plug it in so all it is, is you're going to have a filter, so that will be your filter oil filter, because in the explanation for an oil filter is you you can't have dirty fluid.

A

So you pump the fluid and you you have a filter so that if there's any dirt, if you're doing quick connects and you get any dirt into the quick connects, you wear out the pump so use the filter so so that filter is going to have a quick coupler on each side, male and female, and then that's it and then, of course, the fittings that go into the filter itself. So whatever NPT or whatever fitting you've got in there, you've got that that's kind of how a filter looks. You get the oil filters.

A

All goes in one side and comes out the other after being filtered, that's just a simple diagram of what a filter looks like, and it's got this top here- that the bottom canister screws into kind of what a filter looks like and the quick connects on each side. One is male, one is male male, QC, quick-connect and then another one is a female Quick Connect and they're directional.

A

So they only flow like one way, so you got to pay attention to which is male and female, but the standard convention is that the forward lines are all male. The return lines are all female, so that would be say a female. So basically you got these very simple standalone filters that you plug. So would you plug that filter into the Quick Connect coupler on a hydraulic reservoir, and then you plug in your return line from whatever power cube or whatever device you have into the filter? So that's a way that you can have this.

A

This super simple thing here happening one reservoir, doing all of that, and that's where that's what we would like to do like I'd like to see for this time around. Definitely like four outlets, just to really test out the modularity aspects of this kind of design. Does that make sense any questions.

D

Yeah, can you hear me yeah.

A

D

To kind of what Achmed was saying, I was just thinking the modularity aspects that I'm not that familiar with the hydraulic system, usually the design of the Cuba, all that but I start think of a way if it made sense to make almost like a other module that you could connect to add more couplers. You know like no.

B

D

To start with, and then I get an adapter that you can add multiple modules I, don't know how yeah that would be yeah.

B

D

Be like a hard line that you bolted on that would connect to water. Interconnected then add multiple switch I mean I. Guess you can you can use steel pipe to do that hydraulic stuff, but it might be kind of difficult on those power.yes.

A

D

On how you have the mountain yeah.

A

So look at page number number 13, so I drew up a good example of what you what you just said, and we've done that actually on the attract tractor, where we had the multiple power cubes on it, we actually had allowance for four, because we were going to put four power cubes on it. We only put two. We got only two two, but if you do that yeah you can have one of these exits with. So, let's, let's actually start a separate slide slide duplicate slides.

A

So, let's, let's take a look at because it's there's a very practical point about it that we've learned so like regarding separate versus versus combined quick, connects.

A

So here's an example of a combined one, so so we can get rid of these holes. We can put like a long one here. You know this. One has three well it for, but let's say we got a triple triple one.

A

Well, that thing I can just tell you right now, if that's a quick-connect, so it would either like that's a quick-connect, it would say dangle whichever way, but it gets so long that, if you're going to make the let's see so that so you plugged it in right there and you've got quick, connects on these three or four. Oh, yes, that's actually got four, because it's got it's actually four, because it's got this one on the end, so it's got four quick connects on it. Well, the practice is just really awkward.

A

We've done it and it's easy to break these off and stuff like that and not as clean it's yeah. I would prefer to do the separate ones it's doable and you can't do it like. In fact, if you want to you know, say to cup, you say you wanted to do five power cubes and you already took up all four yeah.

A

Then you can connect like a multiplier, but it's just I think cleaner, like conceptually both conceptually and practically it's cleaner from our experience to do the separate ones, and the point is that it doesn't cost you much more to do the in fact, it's less. The part count is less because if you count the parts here, you've got there's a key here, a cup little connector piece between each tea. They don't make like these multiple couplers you just have teas and you've got connectors. So here the part count could be actually very significant.

A

Typically, oh, yes, so let me tell you the yep there's a real disadvantage for parts count. So let me explain that so. Look at the part count here for this system for part count for return. Let's just count it right here, because that's an important point for the return. So in this one, every quick-connect has a coupler into the the T, because the quick couplers are all females and they don't make male T's. All the T's are typically female.

A

Unless you go custom and more expensive and very rare, all the T's for hydraulics typically come as females unless you go to very expensive teas. So what happens here is you've got the coupler. You have the four couplers each one of them has a fitting that goes into the tee. So, let's, let's do their very specific explicitly here. So it's because you'll see that in practice it's it's actually so much simpler to do what I'm proposing here. So let's do the account to convince you so for you've got five quick coupler.

A

Well, let's just take a look at everything here, so the number of quick couplers altogether without plugging anything into this, so here you've got four on the gone out and then there's two here, because there's a male and female connecting there so there's six total of six quick coupler pieces and if it's a, which is five female, because their return of one male, which would be the one right, there's going to be two right there going to be one male and one female there, because they're plugging into each other.

A

Assuming this is a Quick Connect device here which we want because we like Quick Connect. So six, quick couplers for every quick coupler you've got a coupling just a male male coupling. So there's six couplings. What do you call? Those six they're called nips. Six nips you've got three T's and then tulips between the t's.

A

So six nips two couplers okay. So what's the total?

A

What's the number.

A

12 13 14 15 16 17 parts, okay! Well, let's do the count 4 here get rid of that. So go back to page, go back to page 13.

A

In the separate one so part count for quick couplers.

A

A

And then you've got the bungs and I mean you can. Actually you can actually weld a male nip. Actually, you know the simplest way you can. You can do this. You can do a four knits that are welded right into the tank. It's not typically done, but you can do that.

A

It's well acceptable for quick, couplers and fall for nips for a total of eight parts, so you got less than half the part count of this, and actually in this one I forgot that well, let's see, there's a nip, no I think I got everything, two four six yeah, so it's it's half the part count and and because hydraulics, it's all about the fittings and they take time. I mean man. This is twice as simple twice as fast to build. For that part, it matters. So that's why we prefer the this thing.

A

So does that that is that a compelling argument, or is that make no sense.

C

It's okay girl, it's okay, yeah, okay,.

A

um Yeah I mean it's just you know, we've done all this, we've done all the multiple ones and it's just like when you get to doing it. You know you think it's all nice and neat and all that, but it just ends up taking so much time. It's not fun, whereas here now I'm thinking about it based on the experience from before, and it's like wow okay, this could now take it to the next level. I mean those kinds of time factors do matter when it comes to the practicality of the thing that you're building.

A

So let's assume we do that, let's, let's shoot for a four-four whole thing where you can attach four filters and they're just separate Quick Connect filters, as we mentioned here, modular filter, modular, quick, connect, filter and that's it so, let's divvy up who wants to do what? So what we got to do is draw these parts and then once we got all of them, we put them assemble them together into a nice power cube and the concept is there and then once we have all that all the parts.

A

The cool thing is, we can go nuts on modifications, different sizes, different configurations, different reservoir sizes and so forth, but I mean you just cannot beat this integrated frame here on page 12, that's got three unique parts and then and includes the the hydraulic reservoir. Now, let's, let's talk one more thing about the hydraulic reservoir or hydraulic reservoir also has a breather and a filler, so you need two more holes in it.

A

So you got a little breather, so air gets in and out because if you don't have air inlet, then you get airlocks, because the volume of hydraulic fluid changes you're going to get either vacuum or pressure. So you need a breather.

A

Which can be on I, don't know, breather could be wherever, but if it's on top, then it's a breakage point like if you can't put anything on top. So maybe it's a good idea to put the breather off from the side and bend it up. So let's go to well wrong page. Let me go to the other page.

A

Let's go to this. This reservoir design here on page 13, so breather, but maybe make the breather happen like off the side, so you so you can't break it off the top and a filler see the breather and a filler, also a breather cap and that's in the overall bill of materials. So let's, let's label that as breather and filler.

A

So call that the filler I mean they could be anywhere, but we got to just put in a place that makes sense on top somewhere. You don't want the filler to be on the bottom, because you can't fill it. You want it to be on the top, so you don't spill and the breather has to be above the fluid level, so it really needs to be like as high as possible.

A

It might just have to go on the top I mean top, is the obvious place to put it, but the only disadvantage of being on the top is. If you know you can't stack something else. On top of this power cube now, which we I don't know, I think it's I think on top might be good. uh It's just one of those things. If something falls on it, you can easily break it off, so you might have you know it sits on the top. You want to protect around it.

A

If it's on the side, it's pretty much protected, maybe so we can think about where to put it, but the breather has to be above the waterline the oil line. Now, what about the visor for seeing the level of the fluid? Well, you know you can put a visor like one of those visors that they have on like a fluid level gauge, which is just a glass plastic window. um That's one way to do it or you can.

A

You can do like you can have a dipstick, so the filler could just have a dipstick I mean I. Don't necessarily want to mean that definitely the side gauge is convenient, but a dipstick is fine, so you could have a dipstick there, so you don't need to put in another hole on the inside the tank, which is I mean if you put, if you mount the the visor window, that's actually two more holes, it's actually one hole on the top one hole on the bottom.

A

um I, don't know you can also break that like if you it's a break point. It's so so I mean it's fine to go with the breather width off with a dipstick to measure the get the level of the fluid. That's alright. If you want to go more fancy, that's we can do it, but this is enough.

A

So breather with dipstick- and you know immediately when like say your power cube, doesn't have hydraulic fluid, which you can't run hydraulic pumps without hydraulic fluid. If you do that, the pump will just burn out so, but you know like as soon as you try to move the tractor or whatever and it does it starts to jerk or not move smoothly. That means you get low fluid level and you stop the tractor immediately that point. So there's a feedback. Unless you, if it's unattended, then you can burn out a pump.

A

If you don't have the if you're not paying attention to your fluid level, but I can happen whether you do or do not have the side gauge. You always have to make sure you check that and if you don't see any leaks, you know that the hydraulic fluid is going to be relatively constant in the tank. Unless you have some spill or you're constantly connecting and disconnecting things, in which case you have a little drip of hydraulic fluid every time you connect and disconnect.

A

Unless you use leak, proof couplers, yeah, but but the couplers are self sealing. There's just a little dribble like whenever you break the seal, it's a spring-loaded ball valve that makes that seal, but there's just a little drop. That is lost every time you you do that, which is also the case for bio, hydraulic fluid, which is canola oil with additives which would get will get to as soon as we get our tractor to grow.

A

Some canola here right, so so right now we're at the stage of perfecting our machine so that we can really go crazy on good regenerative land development all right so who wants to take which part? You know pretty much discussed the main design theory here um so who do we got so in this work? This working session? Let's just take, take a part each and just do it. We got three hours so I'm and you want to take the frame.

A

Who wants to do the frame? Oh.

C

Okay record I can do it. Okay, okay,.

A

Well, so so yeah yeah just start doing it two foot wide, so two foot cube and then we fit it all together and make sure you leave your sketches under save. You know as soon as you've got any document, just save it and then make sure you have the sketches in an initial document. So we have to modify the power cube frame. Of course we can go back to the sketch and modify it okay, who wants to drop the engine.

A

And anybody I can.

E

Give it a gallop, that's enough! Filler material.

A

Well, it's in the working document: it's the engine. Is it definitely in the bill of materials, so you've got the sourcing for that engine. Yep ah Joseph.

F

A

Oh wow, so oh I see oh there's a whole bunch more people here, I didn't see it. There's a scrolling bar for every other participants. Only thought I saw four, but there's a whole bunch of us Joseph on should do that. If you want to do that, so basically start with a diagram of all the dimensions and and get on it. Okay, so I'm going to so I'm going to allocate these fine fine names. So engine CAD we've got Joseph.

G

Who does the engine yeah.

H

G

Posted Ming Gallo, maybe who does the engine, can't sit up in Java the simulator where's.

H

You where's your link, there's on page six. Oh no.

G

A

Yeah pump it into the document, so we have a direct link on page six.

H

Okay, so we got Joseph there.

A

So for the frame we said we got Achmed.

A

And guys you know what's happening with the Saudi Arabian event, the hot the hot deal there is just got a call from a Hopf yesterday and he says he wants to do. 300 printer builds two days two days two days. What do you think of that I'm for it?

A

So we're going to build 300 printers in the six days in three different cities, and he wanted to do that. Part of the thing was for women traveling, since they always need an accompaniment in Saudi Arabia, it's easier if you bring the event to different cities, so it's a little easier for the male-female ratio coming to them to the event, that's that's. The update.

A

Ok, pump CAD, who wants to take on a pump.

A

Because somebody.

D

I can do that. Okay, Abe.

A

A

All right, Auto filter, that's that's a simple answer. Oil filter with fittings and quick couplers wants to do all. Filter I can.

F

A

There's realty people yeah.

F

B

Recap: I'm going to get the thing to get this off, watching your phone.

H

See it again, we tap on the link with yeah.

A

Right, yes, so so so there's a be om link and then just paste this right into every single one, but I'm pasting that into every one of those the BLM is linked on page page four, by also linking it to all these ones. So you have it right there, okay, coupler, now coupler, oh, this is kind of like maybe I, don't know. Who is that an annual territory go? Do the coupler.

G

A

Yeah coupler I mean coupler is even easier, but maybe you want to do the engine mount. That's harder will give you the hard one engine mount means you ten I mean the couplers. You have to look at the shafts now for the engine mount. You have to look at the bolt mounting pattern of that engine and drop a plate that will attach to the frame somehow so think about the frame there's the frame. So that requires a little thinking.

A

That's I'm, saying it's a little harder, whereas the coupler it's straightforward, because you got that's like no mysteries. So let.

B

Me just straight forward one okay.

A

Yeah, so you look at the motorcade of the motor you got to look at. We need to the first thing, so here's the process so Joseph's got the engine cap. The first thing on each page is you see each page has dimension diagram for reverse engineering as soon as you find one paste it into this document. So we know that you found one and you're actually working on it.

A

So right now, Joseph with the engine I do not see a a diagram paste it into the document or a link to it so that you can pull off that bolt pattern of that dimension diagram. Does that make sense, Emmanuel.

G

Yeah we find that okay.

A

You look at the what the engine is, so you look at whoever sewn engine and typically whoever cell in it they will have diagrams and if they don't look up other.

G

Laughing yeah, oh, if.

A

You do then just measure it yeah yeah. That's that's the proof thing, but you should also I mean just google it online to see if it such as well Joseph's going to do a Joseph paste at that CAD Tech drawings. As soon as you find them. So everybody pasting on it. March.

E

And one of the in the Bill of Materials, if the the engine is in there is the 18 horsepower at the electric Star visa yeah.

A

E

Six for power, yeah.

A

Yeah they're, actually externally they're identical and for the one without without the engine start the engine start bolts on to the engine. So.

A

Underneath that is the recoil start version.

I

E

The same so I can just take all the vlogs from that.

I

There are master yeah.

A

I

A

That's correct, yeah and.

E

This is just going to be a place. The cat design for the engine is just a place over right, just to show how things are assembled. Why not yeah.

A

It's a placeholder that shows that when you put the engine in is that engine going to fit in the frame, that's the kind of stuff you got to figure out is that is there space for the within the frame? Can you mount the pump on it? How does it fit? What's? What's the geometry end up? Looking like that's that's the critical point.

A

In other words, you try to get the dimensions as close to the original ones so that to the real one, meaning that when you do the cad, it's actually telling you the complete story, as opposed to you. You do that in cad and you find out oats in a reality. You cannot build it because it's a little different. So that's where you want to take a look at the dimension drawings online and draw draw that up as closely as possible or possibly, google up and like grab cad. That's a 3d cad repository things like that.

A

Okay, so we're missing engine so engine mounting. I believe we don't have a placeholder for that. So slide duplicate, slide. Engine mount to frame.

D

So how much of this is a redesign and how much reference material is there for I guess looking at an overall design, people are repositioning. Things on the tank might be useful to look at some older stuffs, so you get an overall picture of where things can be put and where they shouldn't be put like you mentioned stuff getting broken off, but then there's.

A

D

Access concerns, omitting it.

A

D

Assembled you can move it around later, but yeah.

A

Yeah I mean the only things we know is that there's a frame there's a hydraulic reservoir and then you've got we're not worrying about the the cooler, because it's a separate module, so you don't have that and you don't have the battery. So essentially, if you can put the engine in with the pump on it, then that's the sufficiency. Basically, what you do is once we have the CAD. We put it all together into the one document and see: okay, does it fit, but we do know.

A

The only things we know is that the fittings on a reservoir are at the bottom and at the top. That's all we know there's going to be a bunch of filters at the top and a bunch of suction lines at the bottom, so that determines where the pump will be because the pump lot the line to the pump goes to that.

A

But yeah. The point is: once we generate all the parts we can assemble them in any way we want and that's the part that it will be obvious. It's like okay, I've got these filters. The engine doesn't fit. Okay, I got to move the engine over or turn it 90 degrees or move it up. You know things like that. That's what's going to happen. It's not going to be too complex. You have the parts you can manipulate them very easily within free cuts. So that's the idea.

A

Next cooler, Plus fan.

H

Clippers fan the frame so frame is a.

I

Othman there.

A

Yeah, as far as the, if we have enough people, we can actually.

A

Yeah the one reservoir played all the action on the reservoir will happen pretty much on the one side, all the holes for holes at the top four holes at the bottom and then the fifth one at the top six one at the top.

A

Yeah I think that's, okay. Let's, let's see what else we got cooler plus fan well, cooler and fan are separate things and we can put them together after that. So I think.

A

Those are big enough in themselves that we should split them. So let's split the cooler and fan and give that to two people.

G

Yeah I cannot do anything and I've got a guy. Stop dude.

H

A

Do it five minutes Google a Gautam, a seller of that they should have cat drawings? The bolt pattern should be average, just Google that damn thing man, that's gonna, be all over the Internet.

A

If you don't need to wait, just google it all you really need is the bolt pattern and from there you can design a mount. If you look at a picture of that engine, you see how its oriented and so forth, you'll see how to how to mount it. Oh you're.

G

Right just by okay.

A

Are we clear on what what the what attach there so so the engine itself is the engine? You don't need to do anything on that you just need a plate or some kind of a mounting structure that will connect to a 2 by 2 foot frame, so it'll most likely be perhaps a plate worse. Worse, though, mounting base, is it on the bottom or on the side on the bottom right, it sits on some flat surface right. You know, okay, clad on the bottom right, so you got a plate.

A

That means you need to mount that plate within the frame, somehow so probably do like vertical connectors and that plate mounts on each side right. So that's what you need to do, but you need the bolt pattern for that plate and once you have the bolt pattern like if you need to move that engine around which we will I mean we're going to need to optimize that you can move the bolt pattern around to fit that wherever the engine needs to go. Does that make sense, yeah.

G

And then so, these would be of the same. I would be on no.

A

You don't know welded you want to I mean if you are, what you probably want to do is a weld vertical bars to the frame. That's probably you want to weld because you know, but then maybe attach, though, since we're going to need to adjust that height I don't know, maybe the vertical bars have holes in them, so you can attach it at different heights or just once we finish figure it out. The plate itself should definitely be removable.

E

Cuz, if I'm looking at this right, the bolt pattern is square so yeah. Could we put it in slot and fly around back and forth, or something like that? Yeah.

A

Yeah yeah I mean that's, that's the idea. Just um yeah slots are a good idea because it gives you adjustment and then how and then wherever we attach it to the frame. Also, you should leave some little bit of attachment because it's always hard to get it exactly in the right place. So linear holes are good.

A

um Let's see so we got. The point of this whole exercise is that where does that we're breaking the thing down? There's no dependence in one thought on the other, we'll we'll work out the interfaces later right now we just need the parts, a general general idea of the parts in there cat okay, so.

A

Fan and cooler, okay, who wants to take the fan and cooler so we've got. Who else is left? We've Alejandro we got Roberto, maybe you guys pan and cooler. That's all we got Roberto and on a hombro. Let's get you the fan and cooler. Is that? Okay, it's great to me. Okay,.

H

H

Yeah, whichever one we do so do maybe Roberto do the cooler.

A

And then once we have the cooler, we can do the cooler module which would have either one of the coolers or multiple ones of them. Like maybe you know, one cube could have like four of those coolers or whatever, like a little complete cooler module we'll think about that later. But for now we know that we need one one cooler, so we can multiply it later.

A

Okay fan alejandro, can you do that.

J

Yeah I can't but and I need any reference. Title novel exactly ask right.

A

So the reference is the bill materials. Do you see the the fan in the bill of materials.

A

So put a link there so, and so, if you click on the materials there's a fan in there, let's see. Where is that.

A

Okay, so there's the cooler there's that okay, it's so amazon, says amazon.com. Okay, so you get a let's get an explicit link to that I'm searching at an Amazon. It there's no, let direct link in a and the spreadsheet okay! Oh there. It is so yeah! That's what it is.

H

Yeah looks good to me.

A

Okay, if you see that I just put on a link and the spreadsheet for the fam, do you see it? Okay,.

H

So something that approximates that just a rough rough.

A

Drawing of that, it's a 12 inch size thing.

A

Yep, as you see the mounting things on it like what's important as for the fan, is that you get the location of the those four mount points, because that's the critical dimension, one, it's 12 inches diameter, but it's got those four mount points and that's you see those connecting pieces. That's the part, that's kind of crazy that keeps coming off and are things on our power cubes. So we're going to make sure that I mean don'ts, because those connectors actually plastic, some of them actually just broke off when we use them and stuff like that.

F

Okay, we're good here.

J

We need to redraw this part yeah.

A

I mean yeah, we don't have any CAD for that outside of the sketchup, so in the sketchup we can't use so.

A

Yeah I mean just make it I mean simple, that don't worry about the detail. Just worry about just representational.

J

Dimension of the radio, the radios yeah.

A

Yeah so that that we need to find somewhere, so we need to search for that. So, let's, let's see yeah when.

J

The radius is 12 or Matt can I use what.

A

Format, what do you mean by that.

A

So we need the bulk pattern and then length width, height.

H

So I mean let's see how much we get and for information like that.

A

What we could do is just search it like search for.

H

Radiator cooling fan and unjust diagrams so so so do do.

A

A search and then just view images, it's probably a diagram, might pop up. No no diagrams I.

A

Mean if there's a product manual somewhere, we need to mind manual.

J

Genius only that space, yeah yeah.

A

He just needs a space, pretty much space up for the holes and just the length width height, really, okay,.

A

Yeah summers: gonna: let's see, let's see if we can find a product manual anywhere. That typically has an assembly PDF.

J

One picture and one dimension one dimension and can do a good good reference. Yeah.

A

Yeah you can I mean that both pattern, I mean, is generally desirable. You can. What we will do is mount it on this metal grate, which has many holes in it. So the it's not critical, that that dimension is actually not critical. Just the length width height is the main thing.

A

And a place holder.

I

E

I'm going to keep looking I can't find any diagrams or manuals for the engine. I found a couple different sites that list the total external dimensions, just length, width, height, they're, not all in agreement, but in.

B

E

To ballpark, with in like half an inch yeah.

A

Yeah, do that so start by drawing a cube of those dimensions and then, where you know where it away make it put a shaft on it. Stuff like that, like that.

A

Do you have have you ever used Sketchup, because you can? What okay what's possible is you can go into? Let's see, there's Google warehouse. You can open up our last CAD file, but the thing is prana. Let's see because Tom already did a rough diagram of it under power, cubes 16.8 and let's see, if.

A

Let's see if we can just view export that as a mesh format and then we can reverse engineered and freecad. Let's see.

J

A

Is there's a Sketchup model? That's on the 16 is a link and a genealogy to the way we're an editor.

I

That's unique with Brittany yeah.

A

That the fan and engine is in there the pump is in there, but I mean we still have to draw it up, because it's nobody in mesh format, so you can't explore. Let's see, where's the file for it. Files.

H

Vom PDF working document, wiring diagram, I, don't see the file there what's going on here. Let's see.

A

A

That file is not on the power cube, 16.8 page, let's see if I can find it on my log somewhere.

F

Marcin I I was looking at a model and 3d warehouse, yo I, oh yeah,.

H

Yeah, let's now.

F

With a 13-point, a version 15.

H

A

Would have the different that's different though we were doing different engines. Then let's see okay, oh there. It is right here. Let me put the link in there. This is a 16 point. Oh nine is.

A

Oh, that's the BLM, that's the Sketchup.

A

Okay, I put in a Sketchup link on page six in the working document.

G

G

A

I'm no kidding there's a version 16.8 and 1649, or the power Q, but forgot we did wait well what there's two pages on the wiki that have the same thing: we're going to clean it up here now one is called 1609 of 69 I want a 16-8, so we got a combined those two. No that's the same thing that was them two different power cubes same thing.

A

Yeah, so there's a link to the warehouse and for download allows you to do colada. What you got to do is download the colada file and that's a mesh format. I think we can open that with free CAD.

E

Right am I misunderstanding, something that that version 1609 has a twin engine configuration which looks totally different, yeah.

A

It's got two of the same engine.

E

That that's the same as the Duramax I mean it's yeah, the durable yeah.

A

It's supposed to be a representation of it yeah does it make sense.

E

Yeah I just thought they look smaller, so I thought of something thread. Yeah.

A

The thinking of in the sketch up shows the engine with that big pump, mountain and pump. So you don't need that. That's the mounting the coupler and mounting part.

A

You just need the engine up to the shaft.

E

What would the, what did you say about the Kuwata file versus the you.

A

Can download the colada file.

E

That's what I want out of a job like 2017 model or whatever.

A

Well, yeah cuz: you want to import into into three CAD and it can't import Sketchup. You only import colada, which is an open format.

A

A

Whoa there's even the Duramax engine specs with line drawings file, but that's Tom doesn't have a link to that. We tried it was a pia wait. What.

I

H

On the wiki, maybe it is it that's all. I am.

A

um That's sixteen plane.

A

Okay, those the links and the chat, okay, they should be going in our design document.

A

The mounting bets, that's it! That's all. We need to pump it into the into the working document. The one images dot channel advisor, calm.

A

A

Anyone have any questions.

C

H

G

C

The volume calculation now the extension and the branch a conference is called, ah they measure the fear of the bank site which is inside the cube cry.

A

C

You write the change x customer service at the pork inch all right. This is the tank volume yeah all right. Okay, what about the tip itself? Yeah.

A

Two by two feet.

C

Okay, it's built on the outside yeah and I'm, the thicknesses for burnstow 5-inch.

A

0.25 cichlid 0.25 quarter inch.

C

Okay: okay, okay, TV I'm, the down the book of limited flat without clothes.

A

C

Just the sheet yeah, just a she's.

A

Well, bottom bottom would be: oh yeah yeah wait, um four five six seven! The bottom would be like this right like this yeah, the bottom shell doesn't need it. No, it should be just like two of these. Then right.

A

Wait so we have eight pieces, that's one too much. What are we? Oh yeah? So this this one's times, 3.

F

C

A

um Bronze 1 2 3, oh yeah, for 4 for the bus. So that's bottom: okay, yeah, that's 4, and this is 1. So.

C

One side on the other, Pokemon yeah and put looks like that.

A

E

March Anissa colada file, open, is still loading and free cat is listing like 1200 meshes in the file yeah.

A

That's what I'm saying it's like useless, but can you open it I've.

E

Been opening for like 20 minutes, yeah.

A

That's not the problem, that's why there's a better issue, so maybe um forget it. Oh, no.

A

E

Okay: silk scrolling down, though the numbers still growing I think is idea. Oh.

F

Maybe 1500.

A

Okay, well maybe see if it opens up, it might take just forever, but that's what you get that's the mesh files are not friendly to freecad.

F

Yeah, it's pretty much effectively locked me out of my computer, okay,.

A

Well, maybe quit no no quit and think.

I

Really reminiscing you're having the same issues that I open the kalam file me and my new I come up. Austin no.

A

Yeah, maybe I'll see if it works or just quit out of it.

A

So Google trying to hack hack our open source ways.

J

The fan that we need is the exactly the image. That's assure me, yeah.

J

Can you tell me the link that you get there you make please? Oh.

A

It's going to be on the link is in the BLM.

A

Can you see it in the BLM yeah.

J

Yeah but I thought I just hide it.

A

It doesn't show up.

J

Okay, ayyy rat.

J

A

Go two columns over you see it.

J

Thank you, yeah.

A

J

You can get the name.

I

That ends up filing.

A

Yeah, you see the Amazon link now yeah.

J

Yeah yeah, thank you. Yeah.

B