The Almost Perfect 3 Way Mitre (with Angle Corner Connectors)

You'll need:

3 x 20x20mm V-Slot® Linear Rail
3 x Black Angle Corner Connector
6 x Tee Nuts (25 Pack)
6 x 6mm Low Profile Screws M5



Cut your V-Slot ends to 45 deg, then turn to an adjacent side, and make another 45 degree cut, ensuring the same distance from the end (a stop-block on the other end of the rail helps a lot!). The more precise you can line up the two cuts, the better the resulting mitered corner will look once complete





Join two of the rails with a 90 deg Corner Connector as shown



Add two more 90 deg Corner Connectors on the open side of the miter



Insert screws + t-nuts and then Insert the upright into the corner



Tighten and adjust the miter until all the edges line up as good as they can







If you end up using this method to make a mitered corner in one of your builds, let me know in the Discussion tab! Would love to see it!