Sky Watcher Quattro 200P primary mask and rear shield

This mask and rear shield are sized for printers with print size 220x220mm. I printed in PETG. If you live in warm places, avoid printing in PLA.

Fix the rear shield in place with 3x rear shield clips. Use foam for cushioning the shield and avoid vibrations. You'll need longer M4 screws for the clips. These should stand high enough to protect the colimation screws when the telescope is put on a table with opening facing up.

I used M3 screws threaded into plastic to fix the fans in place. Use 30mm 12V fans. I didn't use a speed controller but any 12V PWM controller should work fine.