This is literally just an svg generator. Formatted for Brother 24 stitch punchcard,
idk measurements for other ones and i dont own other patterning machines.
Upload an image (whatever files it accepts should work). You will see the image and the scaled down version that it uses to draw the card.
Black or dark colours become holes (which become colour B on a brother doing fairisle). Draw it in pixilart or something first idk.