Desk shelf wrist guard and rear bumper
thingiverse
I took in a cheap desk that was missing a shelf for keyboard and mouse. I got a 1/2" (thickness) piece of plywood, cut it, painted it, and installed on rollers. The 3D printed pieces fit the 1/2" board: 1) Wrist guard (very comfortable compared to sharp edges of the wood). 2) Rear bumper. Also prevents things from rolling off and out the back. Each piece had to be printed x3 and pieced together because of printer size constraints. Pieces were glued to the board with epoxy.
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