> is why some wheelchair users started a project to open-source a wheelchair from standard parts: https://themif.org/
Can you point to any project site that has released anything along this line? Blueprints, bills of material, code? There's nothing on the site you linked having any such resources. The closest thing is a block diagram including an RS-485 motor controller, which doesn't really seem like an alternative to standard parts at first glance.
No idea if it makes more sense to buy those, design from scratch, use those for inspiration, or buy one, tear it down, and rip off the bill of materials.
Can you point to any project site that has released anything along this line? Blueprints, bills of material, code? There's nothing on the site you linked having any such resources. The closest thing is a block diagram including an RS-485 motor controller, which doesn't really seem like an alternative to standard parts at first glance.