Focuser Nexstar 4 SE

This is a focuser for Celestron Nexstar 4SE telescope.
You have 3 parts to print: The motor base, a cover and the last one is just to keep the Arduino Nano not to move- Hold.
screws is M3 diameter small lenght as possible.
2 GT2 pulleys with belt, belt has been cut and fix with glue at the right lenght.
Arduino Nano, ULN2003, stepper motor 28BYJ-48.
Soft is Ardufocus create by J.Brazio, thanks for his job.
Arduino connected to Raspberry via Ekos/Kstars/Indi