I made some stiffer bed support brackets for the Hypercube. It is a direct replacement for the original one. With the original one the heatbed hole distance is also 208mm but it needs to be 209mm normally. I mady the bracket to get the right mounting hole distance.

The brackets are designed for a 6mm and 5mm 2020 extrusion profile grooves. You need to print 2 standard brackets. The 2 other brackets need to be mirrored in your slicing software.

The parts are printed in Spoolworks Edge (PETG) and I used Curas new feature "adaptive layers" (0.2mm layer height, layer max variation 0.08mm, layer threshold 200) which works pretty sweet.