Corner Bracket for aligning and strengthening boxes you make out of thin material like acrylic. Can be doubled tripled and quadrupled up for more strength.I made this corner bracket to reinforce the sides of a large acrylic box encasing my 3d printer made using magicxman Square Joint found here: http://www.thingiverse.com/thing:39310 Use this corner(angle) bracket to quickly align and hold pieces of wood or acrylic at the corners of your box. Depending on the springiness you want from this clip print it either at 5-10% or 90 percent fill density. This will give you a elastic clip or a solid clip. To print many at a time simply duplicate and array them in your slicer program. Enjoy!