This is an assistive device designed to help a person with a transradial amputation swing a baseball bat. It was designed by members of eNable Lowell, an on-campus group at the University of Massachusetts Lowell that designs and distrbutes 3D printed assistive devices to people with limb differences.
Note: The device was designed with a wiffle ball bat in mind. It has not been tested on heavier wood or aluminum baseball bats.
Sand any rough edges and remove support material.
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 bat holder.
Use a 3mm drill bit to drill through the rubber on both the flex adaptor and bat 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 bat holder.
Mount flex adaptor to gauntlet.
Press bat into bat holder.
Pass velcro straps through side slots.
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)