Tetrix Tank Sprockets with Actobotics Hole Spacings

Remix of Tetrix Tank Sprockets, but with the Actobotics hole spacings. Allows the use of Tetrix treads with Actobotics 1/4" axles and hubs.

sml versions have small inner holes for connecting to a 1/4" diameter Actobotics hub and running directly on a 1/4" axle.

lrg versions have 1/2" diameter inner holes, for inserting a 1/2" bearing and free-running on a 1/4" axle through the bearing.