Prusa I3 Ikea Lack Z-Axis Frame Brace

Altough I think the Prusa I3 with reasonable printing speed and jerk settings is quite sturdy
I noticed some vibrations at the z-axis with a big and fast print.

Here is a quick and dirty frame-brace for that.
Designed for easy removal for printer maintenance.
You will need some wood screws, I made enough space for a wide range of what one could have on stock.
M3 square nuts which most of us may have on stock already.
M3 allen-screws of at least 20mm length.
Beware that this is entirely