Hey Thingiverse, it's me again! This time I have created a little clip to hold a hexagonal mirror in place. I forgot which mirror it is exactly, but you can get it in a set for cheap at your next IKEA. Print three or more of these clips to hold the glass plate in place. The clips also retain backwards compatibility to your old glass bed plate (if it happens to be a 175mm one). They will just clip onto the openbeam extrusions without the need for screws. I haven't had them for very long but they tend to lose their springiness over time. This sounds worse than it actually is. Maybe I'll rework them in the near future.