Upgraded corners for Dreamer glass bed update (for smaller glass)

I printed up Makersome's corner brackets in anticipation of upgrading my FlashForge Dreamer with a glass bed. But when I got the glass cut, I used the measurements that were stated in the information (230 x 150mm) so when I got the glass home, I found it was actually smaller than the build plate. I still used Makersome's corner brackets, but printed up a second set so I had one on each corner. Even with four brackets, my glass moved around, so I have been using tile wedges pushed in between the