SNAPON WITH SUGRU PROSTHETIC ARM ADAPTOR

grabcad

https://www.youtube.com/watch?v=6WSU76WsSaY The reddish component in the default image is the sugru. The intention of this entry is to come up with low cost items that could be printed and put on and taken off a lower arm prosthesis easily and be cleaned in a dishwasher. The sugru is a means of attaching various attachments to the snap on adaptors. The idea is for a user to have multiple attachments; comb, brush, spoon, maybe a set of screw drivers if he or she repairs laptops; a cup holder, magnifying glass etc. Each user would have his or her own set of attachments and add more as needed; a remote for instance. Each of these attachments would be attached to a female snap on adaptor that snaps onto the male adaptor which is screwed into the arm prosthesis. A bin would serve to hold attachments for some users; a more sophisticated attachment holding arrangement might be necessary for others The purpose of the sugru is to allow final design adjustment and to allow using a few print files to fit a broad spectrum of attachments. In addition the user might make this adjustment themselves or at least participate in it. If time allowed I would have changed the tapered adaptors, male and female, to have the taper removed on the wider end of the adaptor beyond the snap ring. This would allow for easy insertion of the male adaptor while providing a more stable assembly. I had a previous entry that this was built from that used first magnets and then polymorph in place of sugru. Polymorph might work better for some applications; especially, it could be completed quickly while sugru requires setting time. for items where heat is not a concern it might work well. The level cup attachment was thought of in this contest; I remembered the hinge challenge and entered a modified version of it there. It is left here as it is just another attachment and is an example that any of the snap on adaptors could be made to work without sugru; the sugru eliminates the need to design each part separately at the computer and lets the user simply do it.