GRS 18 spoke Trackball Encoder wheel.
thingiverse
The stock Glen's Retro Show (GRS) Trackball encoder wheel features a sturdy 24-spoke design. However, some users find it overly sensitive at this setting. A replacement 18-spoke encoder wheel is available for printing, requiring two prints - one for the X axis and one for the Y axis. To ensure optimal performance, print with sufficient PLA to achieve total opacity, as any light penetration can confuse the encoder in the trackball.
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