This morning I got the extra print completed. I'm using the #elegoo #mars3. For material I'm using #Resione #w90b. It's flexible so I can add flexures for mirror steering which is what those squared cut outs are for. The start angles I used are for parallel chief rays. That definitely doesn't work. However on my second fail I learned that you want to start parallel and add a flexible component. Did I mention that you don't save money by doing this? I'm probably at $18 worth. $13 : 60x2" mirrors

To adapt #practikar B mount to my #Canon #6D I actually just removed the old flange, did some calculations and 3D printed an adapter. It was a 1hr print on the #SLA #Mars3. I used their water based #resin, but next time I'm going to use my newest resin #resione #W90d. So far that's the best resin I've tried. They got a black version of it.