Focuser attachment for Skywatcher telescopes

This attachment is to be used with my focuser box based on MyFocuserPro.
https://www.thingiverse.com/thing:5140868 .

Material list:
- This part
- 2x M4 nuts
- Complete focuser box
- A SkyWatcher telescope

Focuser electronics and schematics to be found at https://sourceforge.net/projects/arduinoascomfocuserpro2diy/.

I suggest printing the attachment in PETG to avoid warping.

Coupler to be printed in flexible/TPU.

Assembly:
1. Glue Adapter Mk5.1a and b together.
2. Assemble this part with the focuser box. Note that there are two possible orientations. Use the one that fits better for your case.
3. Assemble coupler on stepper motor.
4. Remove focuser lock screw from telescope focuser. Assemble the electronic focuser, connecting the coupler to the fine focuser. Fix the assembly with the lock screw. If using the original focuser screw, it shouldn't lock the focuser if hand tighten.