Corner Brackets reinforced

Hey guys, I designed three types of 90° Corner brackets that are a bit reinforced and corners are roundeddepending on what filament is choosen these things realy can hold some weight. Hope you can use them! Boost MeI would appreciate your support!Measurements (change it by using scaling):two-hole-corner:screwhole: 3 mmheight/length/width: 22,5 mmthickness: 2,5 mm four-hole_corner:screwhole: 3 mmhole-distance: 15 mmheight: 17,5 mmwidth: 17,5 mmlength: 30 mmthickness: 2,5 mm three-sides-corner (XYZ):screwhole: 3 mmhole-distance: 15 mmheight/length/width: 22,5 mmthickness: 2,5 mm