Tri joints

From
Technique: Tri joints
Tri-joint-thumb.png
Designer: Popular Mechanics crate advertisement
Date: 1923
Tools: Wrenches
Parts: Frames, Nuts, Bolts, End caps
Techniques: Bolting

Introduction

Three-sided overlapping joints, tri-lapping joints, or tri joints join three frames together rigidly in all three cartesian axes by securing each with a bolt. This unique joint requires no additional parts and is the basic technique for building rigid structures from frames used throughout Replimat.

Challenges

Approaches

All possible tri joint configurations are represented in each tri joint, and accessible via simple rotation or reflection.

Rotations

References