dev/hack/make/play

Needs a couple small tweaks in process_kicad_layer function to run with format changes for 5.99 nightly builds: []

def process_kicad_layer(outline, arc_subdivision=1):

paths = []

for ln in outline:
    if "(layer \"Edge.Cuts\")" not in ln:
        # extract only the Edge.Cuts layer
        continue

    p = {
            'type': ln.strip("()").split(' ')[0].split('_')[-1]
            }

    if p['type'] not in ('line', 'arc', 'rect'):
        continue

    for el in re.findall(r'\([0-9a-zA-Z\. -]*\)', ln):
        el_p = el.strip("()").split(' ')
        if el_p[0] in ('start', 'end'):
            p[el_p[0]] = tuple((float(pp) for pp in el_p[1:]))
        # transform data

        # do the rotation
        p['center'] = p['start']
        p['start'] = rotate_point(point=p['end'], center=p['start'], angle_deg=-p['angle']) # angle has wrong orientation
        logging.debug("interpolating arc from %s to %s", p['start'], p['end'])
    if p['type']=='rect':
        #add lines between all points on rect
        p['type']='line'


        #X2Y1 to X2Y2
        tp = p.copy()
        tp['start'] = tuple([tp['end'][0], tp['start'][1]])
        paths.append(tp)


        #X1Y1 to X2Y1
        tp = p.copy()
        tp['end'] = tuple([tp['end'][0], tp['start'][1]])
        paths.append(tp)


        #x1Y2 to X2Y2
        tp = p.copy()
        tp['start'] = tuple([tp['start'][0], tp['end'][1]])
        paths.append(tp)


        #modify P to be X1Y2 to X1Y1
        p['start'] = tuple([p['start'][0], p['start'][1]])
        p['end'] = tuple([p['start'][0], p['end'][1]])

    else:
        logging.debug("interpolating line from %s to %s", p['start'], p['end'])

    paths.append(p)

return paths

Igor, what a great project! This will save a lot of time lining up stencils with PCBs! When I used it this morning, the board size was incorrect due to a mismatch in the Gerber line that specifies precision. Altium Designer starts the line with %FSA instead of %FSLA. I have fixed the problem in a new branch, and I would be glad to push it to the repository, but I only have read access. Thanks for your great work on this!

Yo Igor, SUPER cool project! Very thankful to have found it--I've made PCBs before, but never completed an SMT project. This will be my first. Wasn't excited to procure or build an overly complicated solder paste jig for a single PCB measuring under 50x50mm.

As I'm trying to read a .kicad_pcb file, I'm getting the following errors:

"Traceback (most recent call last): File "C:\stencilframer\stencilframer.py", line 592, in sys.exit(main()) File "C:\stencilframer\stencilframer.py", line 429, in main shapes = sort_paths(process_kicad_layer(outline_raw)) File "C:\stencilframer\stencilframer.py", line 327, in sort_paths current = paths[0] IndexError: list index out of range" win10, python 3.10.4, openscad 2021.01 When I open the file as a gerber file, the 3d model stencil holder seems to be sized approximately correctly, but the PCB slot isn't the right shape. I'll investigate more tomorrow. I have a feeling my easiest option will be to manually adjust the stl to correct the size of the PCB slot in the holder--my pcb is a rectangle, so it should be a quick adjustment after dimension calculations.

Cheers again for a sick, sick project!

Did anyone ever get this to work with KiCAD v6, or even the newly released v7?

Hi, I'm having issues running the script. It's complaining that it cannot find the args.openscad file, am I missing something obvious to fix this? I've uninstalled and reinstalled openscad 3 times now

Thanks in advance

Hi Igor,

I think this project will help me!

However, i have issue with the realization :

• PCB width and lenght : 74 x 49 mm (CAD file)
• PCB width and lenght : 74.07 x 49.15 mm (Physical PCB)
• StencilHolder width and lenght : 73.75 x 48.8 mm

As you can see, the physical PCB dimensions are > to the CAD and my printing is <

Is there a factor argument i can specify ?

Thanks

Very nice project, I will try it. It would be interesting to add automatically some holes under the jig "free space" area to combine this with the another pcb jig idea which uses vacuum cleaner to suck the air and that way hold the stencil and pcb flat on each others. Idea and models for that are presended in these 2 web pages. https://cults3d.com/en/3d-model/tool/smt-stencil-pcb-jig https://www.youtube.com/watch?v=hbHJ6JBdSCs

Hello and great project. I am really interested in testing this out but I keep getting a simple error message when trying to run it.

stencilframer.py: error: unrecognized arguments: holder.stl

Im using your simple cmd line execution but it keeps complaining about my outfile.