Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5179593.

This is a device to extend a piano foot pedal to allow individuals with weak leg muscles the ability to more easily depress the pedal.

It is assembled with a 1/4-20 nut and 1/4-20×1.75" hex bolt. The pedal is designed to have the nut printed into the part. When printing, a pause must be added at 25mm or layer 125 (when printing at 0.2mm layer height). The hex bolt will pass through the knob and should be glued in place.

Proper bridging settings should allow for no supports.