This is an assistive device designed to help a person with a transradial amputation grip a handle.It was designed by members of eNable Lowell, an on-campus group at the University of Massachusetts Lowell that designs and distributes 3D printed assistive devices to people with limb differences.
Note: The handle picture is 1 inch in diameter. You may scale the handle holder and grips to fit different size handles.
The handle holder should be printed with supports.
The grips need to be printed with a flexible filament such as a TPU filament. The pictured grips are printed with FILAMENTS.CA Flexible PLA filament.
Sand any rough edges and remove support material.
Insert grips into handle holder, sanding or filing as necessary for a snug fit.
Cut and apply polyurethane foam to inside of gauntlet.
Use a soldering iron to heat up the inserts and push them into the gauntlet. Make sure the inserts are level with the top surface of the gauntlet. Let them cool before threading in screws.
Install rubber rod in flex adaptor and handle holder.
Use a 3mm drill bit to drill through the rubber on both the flex adaptor and handle holder, using the printed holes as a guide.
Pass an M3 screw through the hole in the rubber, and use a nut to secure the rubber rod in the flex adaptor and the handle holder.
Mount flex adaptor to gauntlet.
Pass velcro straps through side slots.
Push handle through handle holder device.
3x M3 Heat Set Inserts
2x M3 Nuts
5x M3 Socket head Cap Screws
Polyurethane Foam w/ adhesive backing
(All materials can be purchased from McMaster-Carr or Amazon)