MP Select Mini Glass Bedclips

I was never really happy with the print bed on my Select Mini. It was sagging in the middle and bent in other places. Getting PETG to stick was always a gamble and high prints regularly popped off near the end. However I didn't want a regular glass sheet because they tend to break all the time. I couldn't get an exactly matching borosilicate plate and having one cut would have been too expensive. So I bought the cheapest small borosilicate bed I could find in China and decided to design my own c