Several the CR-6 SEs I have worked on have had a shattered cover for the bed strain relief. The screws get over tightened and the plastic cracks. I couldn't find a replacement part short of replacing the whole heat bed. Didn't see anything else out there for this, so made this ugly little cover.

The way yours snapped might be different than mine, so tried to make this as universal as possible, but still supporting everything. The top part of the stock cover is a little loose, but it can't back out anymore.

I used longer M3 bolts since the stock ones were too short.

I printed in PETG on the CR-6 at 40% infill. I didn't use supports, there was a little drooping on the brace near the holes, but its on the underside, its mockery hidden from sight…but I know its there.