Bahtinov mask for iOptron RC8 (Ritchey–Chrétien 200mm) telescope

thingiverse

Bahtinov mask for iOptron RC8 (Ritchey–Chrétien 200mm mirror) telescope based on the excellent parametric design by juanmb . It might work with other RC8 scopes (perhaps with small modifications). Bahtinov masks greatly simplify getting a precise focus with a telescope (https://astrobackyard.com/bahtinov-mask/). This mask was designed to be printable on smaller printers with a 220x220 mm bed (like my Anet A8). As the whole mask cannot fit on such printers, I split it into two halves, with the interlocking mechanism which does not need glue (it's based on friction). After both parts were printed, align the two halves (front up) on a hard surface, and the half where chamfer was applied to the interlocking edges (Half2) being on top. Next, use a small hammer to gradually drive the top part's interlocking elements into the bottom part. Gradually is the keyword - don't try to drive all the way one element at a time, as you will break it! At the end, you should have a strong connection, with both parts making a nice flat mask. Printed in PLA for accuracy and rigidity. No supports were needed. Using 0.2mm layers, and 100% infill.