Wheel Options

We currently offer two wheel options. The standard treaded FRC wheel that teams have been using for decades and a 3d printed wheel that teams can develop, test and tune on their own. This page compares and publishes our testing data with the FRC community.

Wheel Type Comparison

Wheel Type	Treaded	3D Printed (Hard)	3D Printed (Soft)
Weight	4.2 oz	3.6 oz	3.4 oz
COF
Usable Life	10 Matches	10 Matches	2 Matches
Change Time	5 Minutes	1 Minute	1 Minute
Manufacture Time (for Team)	5 Minutes	1.5 Hours	1.25 Hours

3D Printed Wheel Comparison and Data

These are some starting points that we have tested using the provided spiky wheel model.

Wheel	Hard	Medium	Soft
Model Used	Tall Spikes	Tall Spikes	Tall Spikes
Infill Pattern	Triangles	gyroid	Triangles
Infill Percentage	40	35	30
Wall count	3	3	2
Print Time (per 4 set)	6.3 hours	5.5 hours	5.25 hours
Usable Life	10 Matches	6 Matches	2 Matches
Failure Mode	Loss of traction	Loss of traction	Tread Material Failure
Failure time	15 Matches	10 Matches	4 Matches
COF	1.1	1.2	1.5

Using match life as a unit of measure is not ideal. Depending on driving style and other factors this life may change. However it gives a good comparable measurement between options and is accurate for what we have seen on fairly competitive robots during actual competitions.

To see our testing methodology on COF (coefficient of friction) see our testing page here

We find that a wheel set is easily stored in Schaller Bin 0306-2