Open Source Ecology Development Team, 15 Aug 2017

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From YouTube: Dev Team Meeting - Aug. 15, 2017

Description

Meeting after the second D3D 3D Printer workshop, where we built a 6' tall 3D printer + 12 others. Event summary - There were issues on locating magnets in their holes, which stretched the build by 2 hours. One mistake was made in assembling the motor 3D printed piece (6mm bolts were left out) - other than this - build modularity was seamless.

See August 15, 2017 entry at http://opensourceecology.org/wiki/Development_Team_Log#Tue_Aug_15.2C_2017

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A

Welcome everybody, so this is the Tuesday August 15 meeting of the development team where's my camera here I'm, going to see if I get my camera.

A

Okay, that's that's better! That's better! Okay! Well welcome everybody! So we had a big weekend this weekend with the build of the 3d printer. So you can look in the work document how the that looks like so. If anyone else joins, please send this send this over to them. Yes, Achmed your speech, you cannot hear us here, I'm speaking here. Can everybody hear me: okay, okay, okay, that sounds good, okay people. So so please look at the the screen on a hangout I'm going to share my screen.

A

Looks like we have a new person on a team here we got Michelle joining us, so Michelle I'm going to introduce you so Michelle is.

A

He was on a team for designing the 3d printer very much initially at the beginning, so the access, the universal access that pretty much she rendered that out and we did that last year and then he kind of had to drop off for a little bit of time because it pops of financial pressure but welcome back and we look forward to it so so Michelle actually is well well versed in the WebGL aspects which we touched upon in the other other meeting.

A

So we're going to look to add the WebGL 3d 3d embeddable manipulable images into all the work that we do. So we really want to develop that tool chain so that we can present our stuff even better, just like you saw on the axis already so, but to begin with here, look at our I'll start here with in a document with our numbers and efforts. So look at that. Definitely constant upward motion here. This week was actually a record like 240 developer hours.

A

A lot of that comes from the fact that so emmanuel is here: working full-time on the cnc torch table and Joseph and Dixon were at the build last week, so they put in a bunch of hours here which counts as direct development hours. That's pretty good! But if you look at that, though, if there's a gap between so if you, if you see my screen, if there's a gap between the red line and the blue line, that means that fewer people are pulling in a heroic effort.

A

So, for example, if we got 240 hours in red, that's the scale- that's ours divided by 10, and we have like seven or eight developers. That means on average each of those people put in like 30 hours, so the lines actually should be close to one another and whatever the blue line is below the red.

A

That means that fewer people are cooling in more hours, but they should be equal because on average, if you divide the number of hours by 10, that should be the number of development hours by 10 that should equal the number of developers. If everyone is pulling their 10 hours per week right now, we have 19 active devs, so by all means people haven't logged this week. So please keep logging and 26 active wiki editors.

A

If you look at the wiki, we've got 26, but the good thing I mean that's, not a huge number, but it's decent and most of them are actually core development contributions. So, as opposed to like kind of random, pretty much random contributions to the wiki, they are mostly probably like 4/5. So that is quite quite the core OSC development effort. So that's that's! Pretty good I think that kind of summarizes the the efforts graph. We look forward to adding so Michel, actually he's kind of joining us today.

A

But officially you got to still do your your free cat, exam I know you know free cat, but we got to go through the motions and show your product to show your results so that you can get a score and a badge for for OSE CAD. Ok, so let's talk about the results from the weak product, demos and then we'll get into the timeline and then work allocation so product. Oh yeah, and by the way so so we're going to have the meeting on a tractor tomorrow. So, as we said, 1 p.m.

A

tomorrow is our regular tractor meeting. So kind of dividing this day is just the general meeting and tomorrow we're going to focus on the tractor just getting into the serious development on that: okay, next design. Okay, ignore that that's! This is uh okay. Let's look at slide number two here, so I'll just go continue with the notices.

A

What is this next I'm confusing? This slide next 3d printer, so Emmanuel's here and we decided so he really wanted one. A workshop out in the main, so we have confirmed tentatively at September. 30 would be the next event in Maine and we're going to go bigger and better.

A

So we're looking at doing 12 inch and 24 inch frames with a nichrome wire, heated bed and external bed heater at 120 AC, so we're going to really upgrade the the size and the extruder so we'd like to do a filament extruder that is three millimeters and based on that loads about 3d printers. So we ran into the so out of the workshop I mean it was good page number, four or five and five we can see the video that was the six-foot printer that we built.

A

We built 12 other ones that were the regular 16 inch size very nice stuff, we're all happy. The event went pretty well, we got killed on one part, and that was the print quality of the parts which was where the magnet holes are because the the current DVD does not have a cooling fan on the nozzle a lot of those holes because they're printed upside down they sagged and effectively. They were not holes because the metal of the material sagged on a tab.

A

So so so we couldn't locate the magnets that we probably wasted like two hours in the workshop. That means we ran late into the night, so that was one mistake that definitely needs to be improved and the second one was on. When we did the motor pieces, the only the tiny screws to attach the motor were attached.

A

So then we have to remove all of that and then attach the regular six millimeter screws, because those weren't put in I'm I just missed that, but outside of those two two mistakes, it was perfect, like all the parts were made like late at night when we finally finished all the parts to assemble it with just one part after another, just snaps, and it was really nice.

A

So that was good, but a lot of people actually did complain about the magnets, so we're going to yeah either fix that issue or do otherwise like, like you, see the PVC frame here. So this is what we prototype just yesterday, and actually Ellie here he's here, we're going to just assemble the full d3d around the PVC frame. So this works really well. Look at that. It's quite attractive, very easy I mean the corners you buy.

A

These were actually bought off the shelf, but we can print them and nice perfect clean, looking frame and then what we could do is attach the axis by bolting through these members, these vertical members.

A

So, instead of magnetic attachment to the front we're going to do the bolt nut, catcher bolt on the end pieces attached to the frame and that's yeah, this looks really promising like super easy way to do it and it eliminates that perhaps the hardest piece out of the whole game, which is the frame because right now we're getting the frame CNC cut and it's heavy. Well, this you get, you can buy the corner pieces off Amazon. This said that I got here was $15 for the eight corner pieces.

A

So that's quite doable and we're going to look at doing this kind of frame for the September 30 so to experiment, because I'm going to be traveling there, one we can it's easier to just bring the plastic pieces or just get them shipped there. So it's just a good experiment to see how well that could work, but I mean from the looks of it looks, looks really nice, so we like it but anyway, the the main improvement for the next time around is so this three millimeter extruder.

A

So so two things about the three millimeter extruder there's one is that we want to have larger print volumes like the 24 inch frame so really getting to 2 by 2 feet. And if we do 2 by 2 feet, then we want a large extruder, also capable of rubber, so thermoplastic elastomer, which can be printed and if we finish so the second day of that workshop, just to mention is the second day is the build of the filament maker. So that's going to be an experimental day right after the first day build of.

A

However many printers we build second day is experimental for filament maker.

A

Now, what's that mean so in practice, if we have a two by two foot worked out two but two by two foot bed: that's enough for a rubber track. If we get the filament maker going and we we start printing or making our own rubber, filament thermoplastic elastomer filament, because the tracks I mean they'd, be like you know, maybe 10 10 pounds or so 10 20 pounds.

A

So if you think about that, the cost of that, if you get the filament pellets they're about a dollar a pound, so a track would cost us $20, which is like ridiculously cheap, but it would be very expensive. We got filament at like 20 bucks, a pound which, in that case, like each little track, would be like four hundred dollars, which is pretty that's pretty expensive. That's cost prohibitive for doing a low cost design, so we're moving right along.

A

This is looking really promising and using nichrome wire with my chrome, with just the sleeve of fiberglass. That would be the way to do the larger heated bed and just a very simple thing: 1/8 inch steel, which is under a dollar a pound, and that way the bed will will be about 20 pounds for the steel.

A

It's gonna have to be reinforced with some angle on the back, but 1/8 inch steel with the Pei surface, so I high-performance bed, my chrome, heated, 24, inches on each side, PVC frame- and this will be awesome- we're moving right along on that, but definitely the print quality under parts like and besides, like people were complaining about the magnets because they were they're hard to put in well this time they were especially hard because we couldn't just put them in and glue then, because the holes didn't really happen and I didn't catch that before before the the workshop I thought looked kind of good, but parts were really crappy, but I mean we got the printers built, except that we spent a lot of time just wasted time on them on the magnet part.

A

So if we do the PVC frame, the magnets are largely not there, except for say for the end. Stops and the tool head attachment, so those will be the two places and yeah. That's that so yeah moving right along that will be the next 3d printer I'll save this slide about next steps on so design. Sprint I meant to do this. This was supposed to be the design sprint slide. Let's, let's move this to the afterwards okay more product.

A

So this is the current state of the kind of how the CNC torch table looks like, but those are 1-inch axes. There's issues there like the long axis is 12 feet. That's like 4 meters! That's that's a large large thing here. These are the 1 inch Universal axes driven by the small NEMA 17 motors. They do very, very well.

A

In fact, one of the motors drives the axis at a reasonable speed and definitely fast enough more than fast, like several factors faster than what we need to do for half-inch steel, cutting, but that's our old CNC torque stable bed, which is a waterbed actually with the slats and the large actually, but the 12-foot axis is heavy and it sags down a little bit and it's kind of hard to connect it to the end pieces.

A

So we're we working that actually so I'm, just getting the mechanical structure still refined before we do the the height control and the automatic gas shutoff for a three hose, oxy acetylene torch. So that's what's happening here. Our progress is happening and Emanuel is here until until Friday. So moving along with that on a CNC circular yeah go ahead, can't.

B

Hear you, since.

A

When, since since just now, how much did you miss sorry, how much did you miss like a.

A

Minute, okay, okay, so on a torch table. Just to summarize so it's looking good okay, so torch table. How do I'm you get muted, I, don't know! Okay, thanks for letting me know so on a torch table. Yeah finishing this up and we might in the next iteration like the the one-inch, solid, solid steel rods, with one inch brass bushings inside the the printed pieces. The this works.

A

It's very heavy we're looking at using hollow pipe next time, and even this time around we might actually do like right now we have three quarter inch, just regular steel pipe, which is empty hollow. We might just replace that it's similar size to one-inch I think it's a little under one inch, so we might be able to use our same parts but yeah.

A

This is we're running into some issues on the mechanical still, so we're resolving that okay, CNC circuit mill, so Shane and the background is doing some tests and he's reported that he's got issues about the height control on the CNC circuit.

A

Mel, like you see here, the all these flakes mean that the height is not being so he's milling, but the height it's just going too deep in some places, so there's some loss on the height one issue that was identified was was the rods might have been slipping, so he put some more material on the arm of the rods within the butt and the whole 3d printed pieces, so working on that confusing okay. As far as the language, agnostic, instructional amazing work, this is great stuff. We use this.

A

We showed this during the workshop and yeah I mean this is just amazing clarity.

A

I mean look at that. That's my Roberto and Abe did the other one on the extruder, so I think it's extremely helpful and useful and I think we can do some more of these later I was going to check in and the people who were working on that, if you guys are finishing that up can I get some feedback. The people who are working on it are you.

A

Yeah, do you guys want to migrate to jitsi like right now, because uh we can do that if you like, we don't lose anybody. You want to try that.

C

Yes, I think so: okay.

A

Okay, everybody, let's, let's just migrated over to jitsi open, just see, Doug meet Doug jets. Let's see so here's the link! Okay, let's just try that I'm over there I migrated there right now so see if you guys can make it.

A

Yeah, okay, I see you guys moving over yeah and I said the other one open. So.

A

Alright, okay, okay, okay yeah, it was interesting. Sometimes the jitsi was working worse right now. It appears to be working better. That's good! Okay! So we'll mute. Everybody.

A

Yes, so I guess we can. We can get out of the other other one. Okay, if you guys suggest yeah I mean let's use jitsi from now on, I mean if let's just try that next time to learn and continue there. Okay, so I'm going to share my screen.

A

Okay and that's any one of you misses this, I mean this is getting recorded, so we got everything here. So that's pretty good here. Yeah I mean really neat stuff pictures worth a thousand words I can't say more than that and I think.

A

What's the general assessment of roberto's procedures, some feedback on that is that working well for people or I I think the instructions are pretty good. Any comments on that.

A

Say the comments for later? Okay, so continuing power cube so last week we did some work. Oh I forget one that was that was like a week ago, Saturday yeah, but we'll continue with that yeah. So that's that's kind of all the reports we've got here. So let's talk about the next main priority. So right now, let's, let's look at the roadmap. So if we go to d3 so roadmap page no, it's called not called roadmap. That's called critical path.

A

So, on the critical path page, we've got the D 3 D the main working team, critical path on the dev team. So I'll go into this one, the dev team, critical path, let's just kind of see where we are with everything so circuit mail refinement, that's happening! What you see yeah. Let me shrink this up just a little bit. All that link is we put a link to to slide number three.

A

Slide duplicate slide so slide number three: if I erase that there's a link there to the critical path which you can see, that's right there and I'm gonna.

A

With that image in this in the working document, so there it is so let's just got to go through where we are in this this map, so that August 12 is the 3d printer workshop. Yes, that happened well. The CV press is the next one coming up in two weeks.

A

So this the workshops are moving right along and we have to extend this for the future ones where we have the the next main thing on the calendars: September, 30 and because September 30 is going to be the next 3d printer we're looking at the tractor, we just going to push it back two weeks, so October 15 and we'll get that announcement up like as soon as we can here.

A

But since the manual wasn't able to do it any earlier than October sorry, September 30 for the 3d printer will move the tractor and that's and the tractors gonna be a big nice big event will go crazy on the build so that that's based on new power, cubes and just refinement of all the different parts.

A

If the 3d printing of the rubber tracks works, we are actually going to have 3d printed rubber, so that's amazing, stuff, Cinci torch table yeah we're we're not part cutting where we're not there yet so this this part here we were supposed to be like by now doing part cutting that hasn't happened. So I mean we got the steel cut.

A

No, we sent it out for for cutting by the fab shop, we're going to just continue working on a cnc torch table as we and see what we can get developed by the end of this week. We are hoping that the mechanical will be set and we can get some first cut still by the end of this week and possibly get some parts started that the week after, but that leaves us only a week, so you might get a few parts cut with our torch table, filament maker, so the build so yeah.

A

This build is not happening. August 7! So we're going to move that to September 30 and before that, Emmanuel is going to try to test out some of the parts the designing there and the sourcing appears to be pretty complete. There might be some missing links on refining the sourcing to easier sources, I'm, not sure about that ade aber Roberto. Can you fill us in and that'ss of the bill of materials work there any? What was the latest there.

A

Okay, maybe not oh, it looks like we do have a little bit of work left, maybe on the just refining that we've got all the parts linked as parts were resourcing, but you want to refine some of the sourcing so that we have just like Amazon, mcmaster-carr and eBay is like pretty much the three sources where you can get all the parts we're I'm going to like ten different suppliers, the load yet they're doing okay, just two more things: I want to bring up today, and that is the OSE ISO and actually wanna.

A

So Christian, are you Christian Ariane here, not sure if you are but Christian is kind of doing the the server work along with Michael, getting kind of firming up the server and moving over the server to our new server?

A

The thing that that we really need those once again came up during the workshop is the OSC Linux thing. We really need to standardize and get everybody on the same page like, for example, during the workshop there were people with Mac's that couldn't run like you know, conflict. This is the same old same old. If you don't have the identical operating system, you're going to get run into software issues, and we ran into that in a workshop, which prevented also some people from printing using their own printer.

A

Their own computers, therefore just wasted time and the I/o so gives us a great opportunity to to combine that with actual teaching of software skills, like some of the missing things that that we have are like everybody using the same version of freecad, where everything works identically. So I'm, going to ask Christian to go back to the OSC is oh there's a page on the wiki called OSC ISO.

A

But we need to firm that up and keep track of, what's working for whom so that anybody has access to an external USB Drive that they put that in their computer and it just works, and it has all the OSC software. And that means also the 3d printing software. You got QR, then you have you have the Arduino environment, so those should be all uniform and then moving out to other things like kicad like like, like circuit design, and all that we got to put all the software and and Inkscape and so forth, but yeah.

A

We really need to go revisit that and maybe Christian if you watch this I'll follow up with you on exactly what to do there. But someone has to manage that another person J was uh was never formally joined our team. He was kind of managing that, but that kind of it seems like it fell by the wayside.

A

So we need to revisit that and get everybody on the same page with respect to the software, so, for example, during workshops and anywhere else, we can always be sure that now the question should be okay, not like what version are you using? The question should be: maybe are you using the OS e? Is ours OSE Linux, so that there is no confusion like like what version and so forth, because different versions like free CAD is definitely not at a final product stage.

A

Yet it's constantly changing other software is changing, so we need to be on the same page, so we'll revisit that as far as free CAD I know, we're so I know that, from what we have on a team, Emmanuel and Roberto have been quite excited about the assembly capacity within free CAD, which changes our workflow a little bit like what we were doing to date was.

A

We were saving files, just importing them as merges, but it turns out that the assembly workbench has a really good workflow for that already, meaning that you, when you import using the assembly workbench functionality, you get a properly constrained machine like, for example, the brick press were where the individual supporting files are individual modules, but they're imported through the workflow of assembly. Not merge.

A

Ok, so there's there's details in that and out on Roberto. Do you want to share some of the later I know? I was talking to the manual here. Do you want to share some of the latest insights about how you would see that working because I know you've played with that? Do you wanna comment on this? Can you hear me? Yes, we can okay.

C

Yes, with manual life, we were trying or talking about the assembly work for one using the assembly work, something to work. Wench, yeah.

D

C

It's at there there's a lot of tools and options for the assembly in order to, for example, to beat each single part into the cell yeah. If you use.

C

Sub sub assembly into doing the math for assembly, TV, press, so I think it's really cool and the only difference I like respect to to our current workflow that master and we we are not going to see each individual part only the some of them.

A

C

Assuming different size, I, think and in terms of what would I write like yeah.

A

And I thought about that part and that's the only missing link to that workflow, because, what's really nice is, if you in the master assembly, you can strip away parts that are sub assembly level and in this, what you're proposing right now you we are doing it at the assembly level. So, for example, if you want to examine the parts of the extruder like yesterday, we downloaded the the lulzbot extruder file which they have in free cash and it was actually constrained as an assembly.

A

So when you clicked on it, you couldn't get to the parts, the individual parts and that would have been nice because we wanted to see the individual parts. So what's a way to address that issue, can we do them? Can we do maybe like two file sets where one is the master assembly with with sub assemblies and then there's maybe another one is a master assembly with parts but still done through the assembly. Workbench.

C

It's possible just do the workflow the difference, because when we were using is we can distribute the work into different team members, so it each person. Work works in just one sub assembly. But if we want to reuse the assembly to water assembly, we choose, which is, we should give the work. The work to only one person, because it's just one person who work who is going to to import each individual part control metric family.

A

Okay, yeah, but then what we, what we can do, perhaps so, yes so say you have that, but maybe then we can do just it would require a little more work. But can we not then like after we have the sub assembly, then we have a bunch of individual files for the parts of that assembly and then we do another master file that consists of parts plus the final assembly.

A

So that means we would have to have two master files. One is the master file of master assembly with sub assemblies and the other one is master file with just parts. Would that work? You think yeah that.

C

It's possible and also there's a way to solve the program of the work tribution. Maybe.

D

C

We, if we make an agreement about em.

C

For example, one person works and the master assembly with an initial, but then that person's like say his work for another person work in the same file and that way we could finish the master assembly, but we we cannot work at the same time in the same file. That's the point.

A

Well, with two files B, then the answer to master files.

C

The the problem is, if we, if we add the assemblies into different files into the the import in import tool in the assembly to Orange, all you can only implies with with just one visible part. I, don't know. If you understand me, no.

A

I didn't get that when the yeah, maybe.

C

Once imagine today, we have five parts into that so assembly yeah.

A

C

If, if I want to import that that part, the master assembly when I need that only one of that parts of one of those parts and is busy for yeah.

A

Right England.

C

Because you give there more than one that more than one part visible the important in the assembly to work when she is not going to work. Okay,.

A

So tell you: what I think we really need to do is do an instructional on is to show this new workflow, and how do you think you can?

A

Could you see a solution right now for the individual parts being visible in the final assembly versus just the sub assemblies being visible in the final assembly Jamie? Can you see this oh yeah.

C

I was I was thinking that I think you have a workflow is could be useful for that purpose because and if we work on just one file, we can now with some people is working on that file ready. So we can maybe work on the file, then left leave the file for the work and for other people's work.

A

Okay, we need to document. Is we need to pretty much get everybody on the same page on us, because what we're talking about right now is actually the proper way to do CAD, as opposed to the very simple way which I was proposing before, which was just you, merge individual files into a final document which, which misses some of the advanced functionality of assembly constraints.

A

So can I get you two yeah, maybe maybe as your since you're you a manual are pretty tough on that? Can I get you two to lead the effort of documenting the new workflow I, do a little video on it so start with a script and let's, let's go through and approve the script like that, we're all totally agreed on it and that it addresses the critical aspects of having individual parts visible versus just the sub assembly, visible. Okay and the question there is: why is it important to have the individual parts visible?

A

Well, it's because I think there are at least two places like one is explosions like exponent part diagrams, even even maybe language, agnostic instructionals, but certainly just reviewing the file for like when you're just examining like say, you're in a workshop, and you want to see how everything comes together. You really need to be able to select part by part, not assembly by it assembly, so I think there's a compelling. Definitely a compelling reason why we need to have the individual part files like the two to kind of master head files.

A

So right and then a question becomes what well. Why do we have? Why not go to just migrate to the one part where we use the assembly workbench with individual parts as opposed to assemblies? Is there a way to facilitate that the individual parts, by the way we organize the part tree that we can get that assembly viewability within? If we have a master file with individual parts? They kind of see that but I think okay, I think this needs a little just a little bit of head scratching and how exactly we go forward.

A

But let's all can I have you begin and I'm like focus really on this aspect, because if we get this this down for everybody that will really improve the how we can all work together in parallel on the other, more complex projects, I think this is really critical at this point in the project, so yeah, you think you can work on that.

A

Yeah I mean there are different options: sofas, I said Robert I couldn't hear you are you still there can you can you take that out.

A

It looks like Roberto's having connectivity issues but yeah. We really need to solve it. Jose spy pin in that there's MUX, there's sub-assembly, there's other other stuff that we can work with, but yeah we really got to address the both of the module level and the individual part level within the final master assembly. So we are we'll do that yeah!

A

So, let's, let's assume we're going to work that out and I'm going to try to get Roberta and definitely Emanuel to type in but yeah. It's I think it's about time for a nice decent video instruction on how to do that. So we all learn from that, including myself, because I haven't been personally I haven't been working with the assembly features of assembly 2 because I'm not smart enough yet- and you guys are teaching me so ok, so we're all in a group learning environment. So it's good, let's teach each other.

A

So let's just move on here so that that addresses the freecad critical freakout question: improving our workflows there, the ISO! We really need to beef that up Christian. Okay. So let's let's talk about the process. So, what's the next major priority, so we were working a power cube that was I, think the weekend Saturday this last Saturday, but the weekend before that and I think we should continue on that.

A

So that's looking good in terms of a much simplified power cube and we're going to build the power cube and during the build in two weeks, so I think we can return back to that as far as the CB press, what we've done is pretty much updated. A lot of the parts I think we'll get a manual to do the final assembly, possibly waiting to get the results of Roberto.

A

As far as how what's the agreement is on what kind of master CAD files we should have available, but we're going to shape on a brick press and then the power cube we're redesigning for more simplicity there. So we can continue on that and I would propose that this weekend we focus on that. So I would propose the the design sprint noon time to four on at least the power cube, continuing what we've been doing before to make sure. That's all!

A

That's all good, so I'm going to go to slide number ya design, Sprint's I'm, gonna press this up in discussion there, okay, so design sprint. I put that is page two. So.

A

So power cube once again, it goes to goes to breakdown of the individual modules. I know that people okay, so let's go to power, cube the page called power, cube version 17 point: oh eight under wiki, which I just pasted into the chat. So that's where we were we've got some of the parts already I was actually doing. The new Bill of Materials and I was looking into the hydraulics design and so forth. But we've got this nice frame that we we got. That's largely done.

A

We need just a few more details on there, but if you look into this document, I was trying to doing a visual bill of materials for so basically reconciling the whole Bill of Materials here on page well on the Bill of Materials section here in power cube version, seventeen point: oh eight, reconciling that with the visual bill of materials and then getting all the modules. So so, let's continue working on all the modules the modular breakdown like we did last time we had in this working document from that was August.

A

Fifth, yes, so that was the weekend before before this last one, and we allocated the different tasks to different people already.

A

So that working document reflects a lot of what has been done. We can continue within that document and start going to where the missing pieces are as far as breakdown of the CAD into the different modules, and here we got the parts library we're just filling in part by part. That's really good.

A

As far as the progress on that, if we get to the torch table running by this weekend, there's a chance, we can actually start cutting this. Otherwise we'll probably end up cutting the steel by hand, which is you know it's not. You know you can absolutely do it, but it's just going to take the frame.

A

Cutting may take more, like you know three hours, four hours as opposed to maybe one hour or something, and it's a relatively simple shapes of by hand that you're, not you know it's probably four times as slow as users using a torch table, but yeah we can do that it. Within the workshop setting. We can have a couple of people on the torches like two or three people, torching out the parts and other people drilling out the holes. So we can.

A

We can manage without CNSC, but as far as the design sprint this weekend, whoever is already doing parts like you were allocated in the last design. Sprint. Please continue if you haven't, if you haven't finished your part, meaning up to doing the CAD file, the simplified, capão and uploaded and then placed into this part library here so like I know, we have the fan, we've got the the cooler or the filter.

A

Rather I know those are around, so we can add them to the cart library which- which is here now, but just one note on this: if you look at the Bill of Materials, I, actually sourced a two-stage log, splitter kind of a pump, which means that it has a fast it switches between high pressure and low pressure, low pressure means faster speed, which this works or the brick press. But this would not work for the tractor, so this is a special case.

A

We really have two versions and they're somewhat interchangeable, but you can put on a comp into this power, cube that we're building right now we can put in the two-stage pump or the regular pump that we're actually sourcing before like like when we started last last week on a design sprint. We are just working with the regular one stage pump this one here. So that's valid. That's what we will use whenever we're doing things that have hydraulic motors as opposed to hydraulic cylinders.

A

You can't have a two-stage company: you have a tractor wheel, drive because it might go slow or fast uncontrollably. You want to but applications like log splitters presses like the brick press, the two-stage pump works. That's the only change, but that's an another module that we can add to the design sprint and if we can focus on getting the CAD knocked out during this design sprint. That would be excellent, so I'll go back into the design, sprint document and break down the work more into individual parts.

A

Get more specific on the things that we are using. The main thing right now is I mean the big question is oK: we've got the engine which is such-and-such size.

A

We really need to determine whether that, with the pump that in it simply fits within this, the strain that we have, if not we're, simply going to have to increase the sizes by a few inches or whatever it takes to fit that in and the engine I think Joseph was tasked with that. I know it's a hard part.

A

He did I, don't know how far he got on it, but the engine has a basically a pump mount and a pump, so that ends up being quite long in the direction of the shaft, because you've got this pump mount that sticks out quite a bit and then a pump that sticks out even further.

A

So it's going to be like you need about twice as much as the engine width here you need to to fit the pump, and you know one option in the simple power cube for the brick press is that the pump actually sticks out of the frame, though that's not particularly desirable for the tractor, because something can hit the pumping and damage it. That's why you want everything contained within the frame, not sticking out, but that's that's that's that. So, let's do that so design sprint.

A

Let's, let's call it out for Saturday, that's going to be on August 19.

A

Saturday August 19 and the workshop itself is in Friday August the 25th and that's going to be good. We've got the updated guides for the drawer. We did the whole redesign. It was a great job by the whole team that that's pretty much done. The parts are out for cutting or and they're being cut right now and then there's the controller which we have pretty much under control. So so noontime, let's do noon to 4:00 and let's try to main goal is.

A

Finish CAD and then.

A

After that, CAD finishing the CAD means, then just really start on getting the overall assembly finished, CAD plus assembly full assembly and we're demonstrating that it actually works really well like we are able to work effectively in parallel and I. Think these two chains that we're developing are really working nicely and I think we can definitely scale this to many many more people working together. So it's definitely in some initial encouraging results. Okay, so with that said, who can show up on mom I'm Saturday at noon time?

A

Who can we expect there and what can we allocate far as all the practices of the base? What matters is to remember.

C

Tonico happy perfect of the night.

A

C

Action, a poor foolish from the action would be like my third four o'clock, yeah.

A

Can you make it for an initial part of that, like the start of that or program? Yes, sir? Okay, that would be good, so you can probably make at least the first first half.

A

Yeah noon time, there's no time work or do people want to do it a little earlier.

A

Let's talk about that: okay, but let's, let's see who we can line up into what parts so so aid I.

A

Know Abel's doing a pump, so we have, let's see Josh will.

A

D

Doing for you doing there Josh.

D

I owe coupler sino IO is doing the coupler, so we can continue that there's one version of the coupler and then someone.

A

Else, there's a coupler to also different there's two versions of the coupler that we want to use. One I mean: there's two pumps pump sets that we all use one is a two-stage pump and one is the regular pump. So.

D

Joseph was I know he was doing the engine, but he needs some help. I'm not.

A

You guys type in a texture. Let me know if you're available in what part like, maybe the assignment you can take on some of the parts as we go to this I think Roberto is going to be tasked up. So maybe Roberto is taken care of here.

A

Let's see Dixon I know so Dixon was there at the at the build, so he's doing a nice promotional video. So maybe we just let him do that.

A

There's Michael Michaels working on the backend of the internet, but then there's Michel, who we're adding, but he has to still do the test.

A

So Christian we're going to task with the ISO. That's a critical one! So we're going to talk to Christian about the ISO and he's already helping Michael on a server.

D

Actually paste it in here so we're clear on the division.

A

So Dixon, definitely you guys I get into this page and put your name by whatever you can do. Dixon is doing the promo video for the 3d printer.

D

Roberto we got I'm going to have them. Do the.

A

Free CAD workflow we get assembly instructional.

A

Imed we did that you're working on a frame next steps on the frame- I, don't know- maybe I mean what do you think you'd like to do on that and let's actually get get more specific on them on the breakdown of the power cube. So one.

A

D

A

So fan cooler assembly, so there's assemblies that are needed so fan cooler.

A

There is the return line, filter.

D

A

A

Suction line to pump.

A

There's engine mounting.

A

I mean there's the pump itself, which I mean I. Think that's I'm, going to make these smaller here so pump.

A

The little individual parts of this pump, there's 12 frame is a big one frame. The frame has a bunch of details to finish up on frame.

D

Let's go: let's go through this just a little bit so so going into this meeting.

A

We're a little better, so the question is: where that each part starts and finishes. That's like the one of the main questions we ask when we do the module of breakdown.

D

Mainers coupler there's.

D

A

A

There's fan mounting, which is basically this great I'll, talk more about those.

D

Individual ones, what else we got so engine mounting, there's Palm coupler.

D

Engine mounts to frame yeah.

A

Well, you look at the power keep. What else are we missing, so frame control panel can switch return.

D

Line suction line.

A

Yeah I mean I, think we've caught pretty much all the parts here anything missing, but for this we can actually do the pump one and pump two.

A

We can say: there's dub.

A

There's engine mounting and then there you can say, pump engine mounting. That's like an assembly pump engine.

A

So for the pumps we can go with pump, one mounting and pump two mounting like.

D

Yeah, so there's individual ones here.

A

What I need to do is do a better detail diagram to basically outline very carefully where one thing begins and where the next thing stops. I'll work on that today and prepare that so maybe after today, I can email out to assign some of these more carefully. But for now we do have some of the assignments like.

A

D

Think Oliver might be the.

A

Controller to another set, let's see Oliver are you on the meeting here.

A

Or no I don't see you.

A

Josh so Josh, you have more work to do right and um what you were doing before.

D

Josh, if you can pipe in.

A

Yeah, some of these are pretty much lying up here.

A

Yeah Josh, yeah.

B

Hadn't gotten any purpose: nine for the power you get.

A

You were there on the last last meeting there right.

E

Yeah jumping okay.

A

Okay, okay, so let's have you do.

A

So you're definitely available to okay, so I'm going to put a question mark I'm going to actually think about was doing it. Joseph I know he needs some help on the engine Ahmed any thoughts on what you want to continue on.

A

There's the frame that you're I mean I think continue on the frame and yeah. So all I could get you some more notes on that. The fan, let's see Alejandro, are you on here?

A

No, no Jose! How about yourself do you want to jump on anything.

D

I know this was the fan.

D

We had on Honda on the fan.

D

Joshua needs somebody, Emmanuel I, think he's Emanuel might be working on mom.

A

Yeah manuals taken up on a torch table, so don't bother him Sara. We need to touch him with Sara on our saudi through your printer workshop and all that I got a follow-up on that. So.

D

See definite questions or io? How far are you on the coupler I know? Are you pretty much done on that or is there more work.

A

The yeah aisle can you respond on that.

D

Is IO here? Oh yeah, hi.

E

D

E

From from the design stores, I think I admit we three different components for the table was reading my pepper, qapla, okay, so I have been out of such well off I, don't know if I was expected to put this together to adapt and be riding.

D

E

Three components: Roger, okay,.

D

Okay, excellent, okay, so we'll lob, so you're available, let's assume a hand Rose available and Abe Joseph Antonia haven't heard from him. Israel don't know, haven't heard about Jose.

A

Are you available to do some work for this Saturday, so I can get you going in that.

D

And Michelle's going for a WebGL, that's good yeah.

A

3D printer or cube yeah, excellent Jose you want to feed into this and I know we got to do the website stuff I, just yeah.

B

I'm Marcia I can jump eat. Okay,.

D

B

I also go I'm, also working about my free time with the dog free time. This week we did library for a really good deal, because I was trying to make the model yep.

D

Read the model.

B

From the West I don't know, yeah yeah.

A

Okay yeah, so you definitely want to connect up to Michelle he's the master of WebGL I. Think actually he's doing the most I think in the world, like the most open source, relevant work on the WebGL he's the the master of that. So definitely we want to connect, and so we'll connect you up and and it's possible I'll still try to sign the attacks. But we've got six people that are assignable really Achmed.

A

Seven person will and Israel can I still assign you something on the on a design, sprint yeah.

B

B

A

What I'll do is I have to clarify some of the interfaces and how things work together, which is what I'm working on right now. So we'll do that and see if we can make it more clear for people, because we've got some of the parts built and now it's really okay, how do they fit together and I? Have a lot of I mean I know the full inside I'm at and I just need to communicate that a little more so draw a few more simple diagrams.

A

But we do have looks like three six nine ten people potentially available for the Saturday, if possible,.

B

For many become nearly with earlier are not because here it's really like nine by nine yeah yeah, but I cannot just yeah yeah.

A

Okay, I'll see if yeah we kind of got to do it at noon. I got some other things on Saturday, so, okay, well yeah, we'll see we'll see where we can just so so. My next next task is to define the power cube a little bit as far as how the modules are broken apart and we'll do that. So all together, this is good. So we've got a team going so Michel Jose will work on WebGL stuff. Christian we're going to get an ISO Michael is definitely busy on a server.

A

Emmanuel is doing the torch table, which is very important because once we get the torch table going I mean we can be much more close to the rapid prototyping. Just just really wrap more rapid turnaround on all these designs. Here, like you know, we have the literally you have that you can have a design sprint. The next day we can cut the parts, and you know for the next meeting we say: ok, this is what we did so the velocity and the results would become much more transparent and visible and rapid.

A

So that's going to be very important and Roberto is going to help us on assembly. Instructionals Oliver's was helping out on a torch table, height controller, which is good so yeah. This is this is good and then we're going to try to allocate the different tasks for the design, sprint and I'll work on a power cube here, which should be a nice event.

A

What's happening with the power cube, it's actually definitely getting much more simple, like I, think the the the 4 by 4 inch brain, it's definitely more heavy-duty, more complex, but now we're just stripping it down to very, very basics, just refining the design to more simplicity, which is good, so I feel good about that. Ok, so that's I think that's that about covers it.

A

Let's see, there's there any a few questions, any questions at the very end that we didn't address, github, stuff, Roberto, Roberto, put that into your instructional or proposed workflow that we can approve as an official OSC protocol. So let's do that the same version of free cat is going to get addressed by the ISO. We gotta do that. It should be really. It should be easy, like every one of us should have the USB stick and just plug it in on demand.

A

If they need it and it'll take like a minute to get it booted up, then we can actually work on the same stuff.

A

Yeah yeah definitely more instructional, so that is Roberto is going to help on this immediately and we we have to continue just publishing, just little hints and all the software so combining that both the ISO and software instructionals will be a great thing. Okay, anything else that we need to cover otherwise we're pretty.

D

Much where you go.

A

And off menu saying you can start from 10:00 a.m. so we'll make sure that we'll get you fed with the updated information on the design of the power cube, and so you can get going before we get started. Okay. This is good great guys. So thanks everybody where, to sum up here we're rocking and rolling we're, definitely improving our effort. I think things are getting better and better we're learning all the tools and teaching each other. So I think this is pretty good.

A

So if you haven't filled your timesheet, please do so right after the meeting and we'll see you then during the design, sprint at noon time on Saturday and otherwise I'll send an update, email with all the task assignments. Thanks a lot everybody and take care and last thing: I'm I'll quit the recording right here.