About this 3D model

Printed with PRUSA XL, PLA, 0,6mm Nozzle without support. There are 2 screws: one holds the hind legs plus tail. This is an old screw from computer housings. And there is a M3 screw with at least 20mm thread. The cam was modified as to hold a M3 nut. The M3 screw is forced self-tapping through the pulley. The nuts seen on the 3rd picture are not necessary. The pulley was modified as to be printed in one piece without support.