lekernel changed the topic of #m-labs to: Mixxeo, Migen, MiSoC & other M-Labs projects :: fka #milkymist :: Logs http://irclog.whitequark.org/m-labs
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<jaeckel>
lo
<lekernel>
hi
<ysionneau>
lekernel: When I get some time I will try to see how to adapt the nexys 3 port to integrate better with MiSoC Migen Mibuild new organization
<ysionneau>
but it's not very high on my priority list ^^
<ysionneau>
that would be a reason to play a little bit more with Migen stuff
<ysionneau>
I don't even have the board, but rkujawa has one and I can SSH to his machine
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<os1r1s>
lekernel: There?
<lekernel>
yes
<os1r1s>
lekernel: The new case looks very nice
<os1r1s>
case/rendering
<os1r1s>
Looks awesome
<lekernel>
:)
<os1r1s>
lekernel: Is it a rendering or a real case?
<lekernel>
it's a rendering
<os1r1s>
lekernel: I'll be happy to help make parts if it would help the cause
<lekernel>
figuring out how to fab it in an expensive (as opposed to horribly expensive) way atm
<os1r1s>
lekernel: I have mills/lathes/3d printers/laser cutters. I can probably help
<lekernel>
nice, thanks :)
<lekernel>
have you made other cases before?
<os1r1s>
Its probably one of the few ways I can help the project :)
<os1r1s>
lekernel: I have made cases for reprap stuff, and for some FPGAs
<lekernel>
hmm, to be honest, reprap stuff is way below what I need
<lekernel>
what's the FPGA stuff?
<os1r1s>
I've made some lasercut cases for the papilio.
<os1r1s>
lekernel: I couldn't make all the ones you need. But I could help you design/prototype
<os1r1s>
lekernel: Just offering to help. If you don't need/want it, thats ok too
<os1r1s>
:)
<os1r1s>
lekernel: I usually use my repraps or mills to prototype things. If it works well, then I'll get it manufactured
<lekernel>
well, I definitely appreciate the offer :) but well, it's not an easy project
<os1r1s>
lekernel: I typically use solidworks (real license :P ) for designing
<lekernel>
it'll be CNC milled aluminum by the way
<lekernel>
black anodized
<os1r1s>
lekernel: What are the dimensions?
<lekernel>
and glass
<os1r1s>
approximate
<lekernel>
163x163mm
<lekernel>
height TBD... but the rendering is approximately to scale
<os1r1s>
lekernel: Cool. I may try to mill it
<lekernel>
what method do you envision?
<os1r1s>
method?
<lekernel>
what type of piece you start the milling with, for example
<lekernel>
plain block of aluminum? bent sheets? etc.
<os1r1s>
Well, one block of alu would be pretty expensive for machine time
<os1r1s>
It would be pretty easy (and relatively cheap) to do 6 3-6mm plates
<lekernel>
how do you make sure they always fit perfectly together, considering the manufacturing tolerances?
<os1r1s>
If you want to do bent plates, I have a friend that can get that done + powder coating pretty cheap
<lekernel>
and how do you assemble those 6 plates?
<os1r1s>
lekernel: Oh, I use solidworks to design it. It guarantees the model fits together
<os1r1s>
lekernel: I would probably tap the edges and use some m3 screws
<lekernel>
how does it guarantee that?
<os1r1s>
Because you put all the parts together in an assembly
<os1r1s>
It makes sure all the dimensions line up
<os1r1s>
Then when you machine it you use the model
<lekernel>
sure, but if one of the plates is a fraction of a mm off, then you get a hole in the case
<lekernel>
and if it's too large, it doesn't fit
<lekernel>
so no, solidworks doesn't guarantee your assembly fits :-)
<os1r1s>
lekernel: Well, solidworks ensures the model is good. I pull the parts into a cam program which ouputs the gcode
<os1r1s>
And my mill operates on the gcode.
<lekernel>
yes, and that mill isn't perfectly precise
<os1r1s>
The mill is accurate to .0127mm across a 304mm span
<os1r1s>
So the tolerance is reasonably tight.
<os1r1s>
But like I said, I use my stuff to prototype, not for full manufacturing.
<lekernel>
os1r1s, I can send you the full CAD data if you want to play around
<lekernel>
os1r1s, but I have to say, I'm looking for an experienced mechanical engineer who's going to deliver a perfect case all the way to series manufacturing
<lekernel>
I have several other projects in parallel, and little time to deal with any mess coming from the case mfging...
<lekernel>
and I want something you could put in a Apple store without feeling ashamed
<os1r1s>
lekernel: Ahh, ok. Gotcha.
<wpwrak>
lekernel: for that, you need an apple logo and either a time machine or a necromancer :)
<wpwrak>
os1r1s: you seem so have a nice collection of tools. the mills, now many axes ? also, do you make molds or just mill the models directly ?
<os1r1s>
wpwrak: They are small ones for the most part. The one I use most often has 4 axes, but I have plans to add a 5th
<wpwrak>
lekernel: (making parts fit) i suppose also with high-end equipment, the process is basically: a) make a model that's a good as can be, b) make it, c) see where reality and theory don't quite agree, d) add tweaks to the model (or add post-processing steps), back to b)
<os1r1s>
wpwrak: I typically just mill whatever I want done. Its not a production shop by any means. Its just my personal stuff
<wpwrak>
4 axes is already very nice. wish my little 3 axis mill had that ...
<wpwrak>
yeah, same here
<os1r1s>
wpwrak: I have one that I use for metal (4 axis), one I use for PCBs, and one I use for wood/plastic (gantry router).
<wpwrak>
that's a very nice collection indeed
<os1r1s>
wpwrak: thx
<ysionneau>
Aha! lekernel is going to sell the Mixxeo at the apple stores, I knew it!
<ysionneau>
;)
<ysionneau>
his move from gcc to clang rang a bell, now I can see the bigger picture :p
<lekernel>
haha, no way, but enough of oshw with mediocre design =]