I agree,nice job. BUT, let me advise you about Lexan; my wife uses it in her jewelry. IF you put ANY strain on it, like tightening the screws a bit too tight, over time craze lines will appear and the corners can break off.
This is a curious quality of Lexan. You can beat on it with a BIG hammer without hurting it, but over time it does this strange thing,I guarantee.
We use it to cover miniature photographs in my wife's jewelry. Thousands of pieces of jewelry. It gets put into surrounding silver bezels. One time we punched the ROUND lexan shapes a bit too large for the bezel. The shapes pressed into the bezels, leaving a SOMEWHAT domed shape, which we thought looked attractive. However,after some months every one of those domes were full of very small craze lines,and had to be removed and replaced with slightly smaller discs that stayed flat inside the bezel.
Years ago I learned about Lexan. Amazing stuff!! I had to make a forming shape for HAMMERING silver over for some silver smith friends. It milled beautifully with a FLAT carbon steel cutter I made. I did not believe that Lexan could survive hammering silver over it. When I was done, I took some left over piece of the 1" thick Lexan. Laid it on an anvil and hit it with a ball pein hammer. No reaction! I then got my BIGGEST ball pein and beat the heck out of the Lexan. I could not hurt it!!