Bahtinov Mask for Sky-Watcher 200mm aperture telescope (parametric)

I modified this model:
https://www.thingiverse.com/thing:160391
to adapt to my Sky-Watcher 200mm.
The mask is actually ~190mm due to printer size but it works perfectly.
There's a central peg that fits inside the screw gap at the back of the secondary and holds the mask in place.
There are also three holes because I have have fitted tumbscrews to the mirror.
Note that I made the slits quite large so receive more light.
All of this can be modified in the scad file.