Update 12/21/2014: I discovered a mistake I made when I originally made this thing. It was not symmetric as the extrudes had a bias. I fixed that. The original files have been replaced so you would want to download them again.

I made this for clamping two items together at right angles for gluing, specifically Acrylic. The arc it the corner is so the bracket says out of the glue. The tabs are 2.5" x 1".

I included the Solidworks 2015 file and an IGS file should you want to modify it.