Here is a 5" Semiconductor frame I designed to house one of my semiconductor Wafers that was produced at my local legacy fab before it permanently closed. I did not design this one for acrylic like I technically should have. Includes an STL file for a 5" wafer model if you're interested. message me if STEP files are wanted for this project. 

Specifications: 20 Degree angle for the one pictured (working on a 15 degree model as well). needs x4 M3 bolts and nuts (pan head not slot).