So I bought a FlashForge Creator Pro, and I bought a couple of the official glass beds. I tried a couple of the models for corner braces on here, and all of them tend to come loose over time. Eventually the glass bed comes free and will shift and ruin a long print.
I decided to make my own. This is a model for a set of full length braces to hold the glass in place at all 4 corners. Once the little squares are inserted and the nuts tightened, the braces are locked in place. No more shifting glass bed.
It is made to fit the official glass beds and the stock heated bed on my 2015 model. But I'm including the scad file in case you need to adjust it.
Obviously, use ABS if you intend to heat the bed hot enough to print other ABS models on it. I used support material for the square holes on the bottoms where the "locking nuts" go.
The right and left sides are not identical. The rear screw offsets are different than the front ones. If you find yourself having trouble fitting one piece on, try it on the other side.
Remove the nuts under the 4 corners of the bed. Slide the left and right side rails on and test fit the glass. The 4 square locks are meant to be a tight fit. If needed, whittle them down with a razor blade until they fit. Replace the stock nuts. Make sure the glass is pressed snugly against the heated bed and it is held in place from shifting side to side.
If you haven't done so, ensure you have a z-axis spacer in place before operating the printer with a new glass bed. You don't want the extruder crashing into the glass.