I thought the design of the Corner clamp på Oikos was great however I wanted a version that used less area on the inside of the corner so I made an reversed version. This also have the advantage of being able to change the corner angle without re-printing the body.

Both 90 and 120 degree parts added for the stop and shape. Only one set is needed.

The Knob is the only part that is not re designed.

Hardware needed:
1 threaded rod M8 x 130mm
3 nuts M8
1 M3 x 15mm (or 20mm)
1 M3 nuts
1 M5 x 50mm (I recommend using a Philips head screw)
1 M5 nuts