Spherical trackball

One-button USB trackball mouse in the shape of a sphere
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35
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8215
updated November 3, 2021

Description

PDF

This is a functional one-button USB trackball shaped like a sphere. It does not sit on a desk, you have to hold it in your hand.

It was made using:

  • a 57.2mm billiard ball
  • PMW3360 optical sensor
  • the PCB from here: https://github.com/jfedor2/rp2040-pmw3360
  • Omron D2FC mouse button switch (or any other switch with the same footprint)
  • this PCB for mounting the switch: https://github.com/jfedor2/mouse-switch-mount-pcb
  • 2.5mm zirconium oxide (or silicon nitride) bearing balls
  • M2x4 screws for mounting the button and the switch PCB
  • M3x4 screws for mounting the main PCB
  • 3x10mm wood screws for assembling the case

The top part needs supports, the others don't.

Model origin

The author hasn't provided the model origin yet.

License