This is a very simple piece to make a rounded corner so the ball does not get stuck. There are similar corners that I have printed, but I found them too big and blocking the scoring zone. These corners is easy to attach, does not block the score zone and most importantly, more space for players to move near the corners. The corner screws does not interfere with this design.
Flip orientation so there for easy print without bridges or overhangs.
Print 2 of each. Use you favorite layer height. I used 0.2mm. PETG is probably better for layer adhesion. I've printed in PLA and PETG, both work.
The author marked this model as their own original creation.