Enclosure Corners

Recently I designed a corner bracket for a prusa i3 mk2 enclosure at work. Since then because the final result is aesthetically pleasing, functions as intended, and is relatively cheap, I've made 3 of them. The enclosure is constructed with .5inch diameter dowels, and the stl's are tolerance so that the dowels are a perfect snug fit. The enclosure was wrapped with window insulation plastic, and hit with a heat gun to give the nice see through enclosure. Furthermore the cord hole corner is a .25