After assembling and disassembling an Ikea bed a few times, one corner became loose and unstable.

I designed a support to increase the strength of the corner.

In the file, you can find the piece entire and also the split piece in case you want to print it on the A1 mini, as I did.

Print profile, I used 0.4 nozzle with 0.2mm Strength standard setting (6 wall loops) and PLA.

The split version is tight and you may need to hammer the piece in place.