This is a remix of "Strong 8 inch Shelf Bracket" by Cr1msonFir3. Best/strongest print orientation would be to lay it on its side, but the center triangles were not flush with the outer frame originally, meaning supports would need to be used. I didn't want to have to use supports, or print it standing up, so I extended the center triangles, making every area of the part touch the build plate when laid on its side. Now it can be printed with no supports, and should be a little stronger(not that it wasn't strong already) because of the added area. All credit to original designer, I barely did anything.

Printed mine in Hyper PLA at 50% infill to be safe, might be overkill but since its a shelf I wanted to make sure they were strong, .2 mm layer height.