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Collaboration between ModSquad and OpenProsthetics? Answered

Hello! I'm curious whether the ModSquad group has contacted, or explored collaboration with, the Open Prosthetics Project.

While the idea of an inexpensive and colorful cosmetic prosthesis is excellent, I wonder whether it might be possible to develop a somewhat functional, while still inexpensive, prosthetic arm as well.

For children, it might not need have the complexity or range of motion the OPP is aiming for, but even something might be useful.

Discussions

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CarliPierce

9 years ago

Yes, I posted on the Open Prosthetics Project wiki a while back but did not get much response. I will post a more updated version now as this project has become more focused and has a home on instructables. I completely agree that a somewhat functional, while still inexpensive, prosthetic arm as well is a fantastic idea and totally possible! I think that striving for a useful aspect beyond just the cosmetic will provide children with more of what they need. I'm glad you pointed this out. What are your thoughts about achieving something more useful but still re-using existing or found materials?

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kelseymhCarliPierce

Reply 9 years ago

I wasn't meaning to criticize -- you've taken on a difficult, but potentially rewarding project, and I don't want to minimize that. I certainly haven't done anything similar myself! To try to create an operational prosthetic (I realize that "functional" is a bit misleading) you probably need to expand to materials beyond recycling toys. The latter will still likely be useful; the good ones are made to be durable against children's abuse :-), but you'll need more: padding, steel wire (guitar strings) or some other actuator, and so forth. I think you could recycle/reuse materials no matter what -- schedule 40 PVC is pretty durable, for example. Some of the work done by OPP could be very revealing. One of their projects has been to improve the basic Trautman Hook with better hinges, actuators, and so forth. I'm not sure if a DIY T-Hook is feasible, and I definitely have no idea how long it would take to train a child to use it. But it has the advantage of being a proven, well understood design. Perhaps a simplified version? With just one moving pincer and the other fixed? I don't know if upper arm/shoulder muscles could be used for with the actuators instead of the chest. ...Okay, so that was pretty stream-of-conciousness, wasn't it? I hope some of it turns out to be useful.

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CarliPiercekelseymh

Reply 9 years ago

Oh I did not take it as criticism at all, your insight is extremely helpful, thank you! Perhaps the toy parts could be used for the color and fun that would appeal to children, and also like you pointed out the good toys that are made to withstand children's play, but in addition other more durable existing materials can be re-used to reinforce the arm and help with operational aspects. I am going to read up on OPP now, I think this will really help. Thank you!

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Goodhart

9 years ago

I am guessing this is not the ModSquad I remember and am familiar with:

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bumpus

9 years ago

Interesting..

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kelseymhbumpus

Reply 9 years ago

This got double-posted (I've deleted the earlier one). Apparently if you try to post a topic to a Group you haven't joined, it doesn't go though to the Group, but it does go to the forum you specified on the pulldown menu. Argh.