About this 3D model

This part is a combination of “z-driven-pulley_2off” and “z-driven-pulley_rim_4off.”  It is a z driven pulley with rims. Instead of printing 6 parts (2 pulleys & 4 rims) just print two z driven rimed pulleys. The “2C” version of this part has a gear-toothed “C” (as in MBC) engraved in the top and bottom faces of the part. Â