pic: 176 Prototype 6WD Rev. 7

[artdutra04]

Originally Posted by JesseK

If we applied the previous years' rules regarding frame behind the bumper, the corners of this frame wouldn't pass inspection. The entire length of the bumpers must be supported with no gaps under those rules.

This is solveable by replacing the aluminum angle with a regular 80/20 member, and using 80/20 corner anchors to attach the frame members together. The round pockets for the corner anchors can be milled in either a milling machine or a carefully aligned drill press jig.