Broken Arm

A project log for Antigravity Arm Floats

Wheelchair mounted orthoses to enable someone with very low muscle tone to move her arms without the encumbrances of gravity

mike-turveyMike Turvey 09/29/2016 at 06:260 Comments

Well, here's a good example of the kind of failures I've been seeing lately (i.e. once every couple months) If you look closely at the picture, you can see that the arm float is actually broken in two places, not just one. In addition to where it has completely broken off, the yellow piece is also broken. This is basically the state I found the arm float after my daughter came home from school. Given the double breakage, I strongly suspect that this was subjected to a force much higher than in normal usage. I debate over how much to reinforce against these kinds of issues. On the one hand, I'd like this thing to be near bullet proof. On the other, there will always be a way to break it, given enough force-- is the ROI there to try to make it significantly more robust? Any thoughts?