Bahtinov Mask for Bresser JUNIOR 70/900 (Ø105,5mm)

thingiverse

Easy to print Bahtinov mask I designed for my Bresser junior 70/900. The outer dimension of the ring that fits inside the telescope is 105,5mm. I also added pointy edges that I use as "iron sights" when targeting planets. Pro tip! You might want to use a solid color. Clear plastic lets through too much light. I had to paint it with black spray. I might later add the Inventor and step -models too.