Delta corner reinforcements (2020 profile)

The frame of my Kossel XL delta printer is made of 2020 aluminium profile. Also, my corner pieces are printed plastic. Hence, the frame was quite soft and wobbly as its rotational stiffness was quite low. Therefore, I designed with my brother simple corner reinforcements.

The end result is substantially more rigid frame impacting beneficially on the print quality and improved potential maximum printing speed.

We cut the pieces off 2mm aluminium sheet. The triangular holes in the middle of