Tantillus Corner Pieces for 5.5mm Acrylic w/ Set Screws

I had my acrylic pieces cut from chemplast gp which measures to 5.45-5.55 which has a bit of slop when used with the normal corners. These corners are narrowed to have a 5.6mm channel. I also added set screw mounts for 2.5mm screws that you can use if you idler rods slop back and forth.