[CodeWriter23]

> 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.

[timschmidt]

We have collected all the documentation from the WHIM Wheelchair development effort at https://wiki.replimat.org/wiki/Wheelchairs

[hedora]

Since the US ones are disposable anyway, here are come comparables for well under $3K (often under $1K)

https://www.aliexpress.us/w/wholesale-Electric-wheelchair.ht...

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.

[CodeWriter23]

Thanks! I love it, ++using the extruded steel posts commonly used for street signs