Mousetrap v2.0
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A couple years ago I built a stand for my trackball mouse to add a scroll-wheel and middle-mouse button. It was functional but the implementation was not practical for everyday use. With my hobbiest electronic engineering skills and a strong desire to find problems that my 3d printer can solve, I built a PCB to hold an arduino-like controller, a nav switch and a couple tactile buttons, as well as a a case that fits underneath the mouse and places the controls in ergonomically sane spots.

If you’d like to recreate this, you’ll need:

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