https://github.com/Slicer/Slicer https://github.com/invesalius/invesalius3 regarding sewing: - the point of digitizing the pattern is to automatically place all the electrodes, which can be laborious especially if you have a palsy and lack a partner to measure your scalp. - there are existing wash-off stabilizing things for putting patterns on cloth, and tutorials out there to print to these and transfer, but if the cloth is placed directly through the machine then it can cut all those electrode holes itself - common diecutting machines like the cricut may be limited to 12 to 24 inches square or rectangular, although some machines let you do larger if you don't use the stabilizing mat or jerryrig something by hand - the theory of the machines is basically that by using a sticky mat, they can slide the media back and forth under the head, cutting and drawing to it, without it being displaced from the cutting action, because the sticky mat holds it. ; so, jerryrig solutions for larger media may involve an alternative to a mat, such as a sticky backing, one tutorial used thin painter's tape. i imagine you could also slide the material inside a sleeve or cover it in tape. there are also a number of materials sold now for solving this problem, like cloth with a removable backing. - working the machines takes a little normal calibration to configure the blade to cut through the media but not through its stabilizing backing - it's apparently normal and supported to put fabric into the machines, but not as common. the sketch pens can often draw to fabric although it washes off. people replace them with fabric pens. the fabric again needs to be stabilized with a back of some sort to be cut by a diecutting machine. - there are stickier mats designed for fabric i think oh if i didn't link to it already i had found an open source diecutting driver called inkcut https://github.com/inkcut/inkcut future is uncertain around this rare and long-held project idea.