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