/madox-interface-devices

Madox DIY Trackball

Madox-Ergonomic-Trackball Mouse-Ergonomics-Test

Function Component Module
Processing ARM Cortex M4F Adafruit Feather nRF52 Bluefruit LE
Power source 1000 mAh Lithium Polymer
Optical Sensing Avago ADNS-9800
Optical Lens Avago ADNS-6190-002

Design Parameters

Parameter Min Nom Max
Sensing distance 2.18mm 2.4mm 2.62
Bearing diameter 3mm
Trackball diameter 40mm
Handedness Right

Controls

  • Left Mouse Button
  • Right Mouse Button
  • Scroll Wheel
  • Scroll Wheel Centre Mouse
  • Power Switch
  • Scroll Wheel left right = Ctrl Tab / Ctrl Shift Tab?

Target Specifications

Parameter Min
Ball diameter 40mm
Ball Material Tiger's Eye
Ball Suspension 3mm Silicon Nitride (Si3N4) Round Bearings in Polycprolactone casing
Construction Acrylonitrile butadiene styrene
Tracking Technology Laser Optical Sensing
Tracking Resolution Up to 8200 counts per inch
Tracking Speed Up to 150 inches per second

https://en.wikipedia.org/wiki/Tiger%27s_eye https://en.wikipedia.org/wiki/Silicon_nitride