KiCad and FreeCAD collaboration!

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easyw-fc
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Re: KiCad and FreeCAD collaboration!

Postby easyw-fc » Mon Mar 20, 2017 12:16 pm

realthunder wrote: Yes, solid. Not only that, the solid can optionally come from a sketch, which makes it possible to edit the PCB in FC. Doing copper feature and additionally with holes is exceptionally challenging in FC because it needs lots of 2D offset and tangential cut operation, which FC is not good at. I had to write my own extension to do the heavy lifting.
Is there a repo to test i.e. converting a kicad board with tracks like in your attached image pcb_combo?
Maurice
realthunder
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Re: KiCad and FreeCAD collaboration!

Postby realthunder » Mon Mar 20, 2017 1:08 pm

easyw-fc wrote:Is there a repo to test i.e. converting a kicad board with tracks like in your attached image pcb_combo?
I'll add the document soon. I'm currently doing some optimization on path sorting for PCB milling. You can try my repo with any kicad_pcb file. Some pad shapes are not implemented yet, e.g. trapezoid pad. If you encounter any error, please send me your kicad_pcb file. I can try to fix it. No technical layers support yet (silkscreen and stuff), but it should be trivial to add. Here is a brief instruction.

First, you will need the latest 0.17 snapshot of FreeCAD.

Clone my repo into your freecad macro directory. After clone, cd to fcad_pcb, and checkout the submodules

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git submodule update --init --recursive
Start FreeCAD, in the console, the simplest usage,

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form fcad_pcb import kicad
pcb = kicad.KicadFcad(<full_path_to_your_kicad_pcb_file>)
pcb.makeCoppers()
You will get all copper layers as faces. The copper merges together all the pads, tracks, and zones. You can extrude those faces to solid using Part Extrude feature. Or, select the copper item in treeview, and click 'make path from shape' button in Path workbench to convert to gcode. The copper item is a Path.FeatureArea, so you can mess around with offset and stuff to get PCB milling.

You can make single copper layer by

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pcb.setLayer('F.Cu')
pcb.makeCopper()
You can also makePads, makeZones, makeTracks, separately.

If you want holes, add holes=True into any of the above method calls, e.g.

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pcb.makeCopper(holes=True)
And if you want the whole PCB board in 3D,

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pcb.make()
make() internally calls makePads, makeZones and makeTracks to get separate faces, and extrude them into separator solids. If you have matching step files at the same location as your vml model files, the make command will load those models as well. You can checkout my various 3dshapes repository containing the step files in github (which I used your StepUp script to generate, and also the cadquery repo, BTW :D ). If you don't have those model files, then you'll get a bare board with all the tracks, pads, and zones, with holes. Maybe that's what you want.
Try Assembly3 (latest version 0.10.2) along with my custom build of FreeCAD at here.
And if you'd like to show your support, you can donate through patreon, liberapay, or paypal
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easyw-fc
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Re: KiCad and FreeCAD collaboration!

Postby easyw-fc » Fri Mar 24, 2017 5:49 pm

a quick update...
a bunch of other FreeCAD script generated models available at KiCad repo
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easyw-fc
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Re: KiCad and FreeCAD collaboration!

Postby easyw-fc » Mon Jul 31, 2017 9:11 pm

other Through hole components... the MCAD KiCad library is growing again!!!
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ian.rees
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Re: KiCad and FreeCAD collaboration!

Postby ian.rees » Mon Jul 31, 2017 9:16 pm

Nice work Maurice! Keep it up! -Ian-
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Kunda1
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Re: KiCad and FreeCAD collaboration!

Postby Kunda1 » Mon Jul 31, 2017 9:21 pm

Nice!! Well done!
Want to contribute back to FC? Checkout:
#lowhangingfruit | Use the Source, Luke. | How to Help FreeCAD | How to report FC bugs and features
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easyw-fc
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Re: KiCad and FreeCAD collaboration!

Postby easyw-fc » Mon Jul 31, 2017 9:32 pm

ian.rees wrote:
Mon Jul 31, 2017 9:16 pm
Nice work Maurice! Keep it up! -Ian-
Kunda1 wrote:
Mon Jul 31, 2017 9:21 pm
Nice!! Well done!
Thx, I started the main script CQ framework; but now there is a powerful MCAD squad for KiCad :D
you can see them as contributors here
https://github.com/easyw/kicad-3d-model ... ntributors

and other 3D models I forgot ;)
Image
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Kunda1
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Re: KiCad and FreeCAD collaboration!

Postby Kunda1 » Mon Jul 31, 2017 9:40 pm

It looks like the makings for the next Pixar movie :D
Want to contribute back to FC? Checkout:
#lowhangingfruit | Use the Source, Luke. | How to Help FreeCAD | How to report FC bugs and features
Jee-Bee
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Re: KiCad and FreeCAD collaboration!

Postby Jee-Bee » Tue Aug 01, 2017 5:10 am

REQUIREMENTS

FreeCAD 0.15 (best for step single object result)
CadQuery 0.5.2
If you would like to share your models, I'll be happy to add these to the 3D repo!!! :)
Only the requirements are a pity @Maurice :lol:
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easyw-fc
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Re: KiCad and FreeCAD collaboration!

Postby easyw-fc » Tue Aug 01, 2017 5:43 am

Jee-Bee wrote:
Tue Aug 01, 2017 5:10 am
Only the requirements are a pity @Maurice :lol:
Till few time ago, FC0.15 was the only FC release that had no bugs when exporting STEP models.
FC 0.16 has been patched recently thx @ wmayer with release >=6710 (not available for windows or osx) and FC0.17 has been patched just now by @vejmarie, but still waiting to be merged.
So that statement was correct to generate good STEP models.
😉