Skywatcher 200p primary mirror center marker

This is a center marking model for the Skywatcher Quattro 200/800 (or Lacerta 200/800, Skywatcher 200p). This will help you allign the primary mirror marking sticker accurately.
This is how i did it. Use some kind of double sided or folded single sided scotch tape to stick the center mark triangle or donut to the crosshair. Once it's on, put the 3d printed center marker on the primary mirror and push down at the middle to stick the marker onto the mirror.

I used petg for my print, but it could be printed from PLA as well.

Note: the factory primary mirror center marking donut was off by ~1.5 milimeters on my mirror. This means, all my collimations were off in the past years..

Enjoy!