Dissatisfied with the grip and color options of COTS compliant wheels, I created my own using silicone rubber and a PETG core.
Strut geometry of the wheel.
PETG Core. Designed to trap the silicone when molded.
One of the first wheels I made
An earlier mold design. Deemed too difficult to separate.
A later mold design relied on bolts to make removal easier.
Freshly poured silicone.
Wheels!
Silicone wheels are used on my FTC team's 2023 robots.
Wheels are fully parametric.
Silicone wheel sketch.