Prusa MK4/MK3.9 Love Board TPU Cover

Always had the problem to get the love board cover mounted properly on my MK4. After upgrading to MK4S, this was still the same plus I got some resonances on the PCCF cover.

So I tried to use TPU 95A instead. But this required to stiffen the back of the cover which is very thin in original design. This worked great: Cover fits perfectly and is now properly locked by the lever and no resonance anymore.

Minimal change: just stiffened the back of the model by 1mm for more stability because of TPU