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Published on Sep 6, 2015
This adaptive device was designed for a boy without fingers on his left hand who plays a Bach Student Trumpet, model TR300.
The system is made up of five components; (1) MAIN - surrounds and snaps onto the left side of the valves (2) BOTTOM - slides over the base of the valves and main, snaps into place (3) DOVETAIL - connects to the palm via two 1/8" barrel diameter Chicago screws, slides in and out of the main valve surround (4) PALM - connects to both the dovetail and gauntlet via two 1/8" barrel diameter Chicago screws (5) GAUNTLET - connects to the palm via two 1/8" barrel Chicago screws, slotted for Velcro attachment to arm
You can download the original size, built for a 10 year old, OR you can download scalable versions of the DOVETAIL, PALM, and GAUNTLET.
There are two different versions of the PALM - one that is full and must be printed on its "top," and one that can be printed in two parts and joined together with acetone or other adhesive method.