Right-Angle Clamp with Positioning Blocks

This 3D-printed right-angle clamping system is designed to hold two pieces of material securely at a perfect 90° angle. It’s ideal for woodworking projects such as picture frames, drawers, cabinets, boxes, and corner joints, where accuracy and repeatability matter.

The set uses positioning blocks and clamping arms to apply even and controlled pressure without damaging the surface. Simply place your workpieces into the corner, tighten the clamp, and you’re ready for gluing or fastening.

Additional Hardware Required

To complete the clamp, you only need to add commonly available parts:

• M6 nut

• M6 L-shaped bolt

(Using standard hardware makes replacement easy and ensures long-term durability.)

Ideal For

• Wood, plywood & MDF

• Frame-making

• Box & cabinet construction

• Gluing and assembly work

• Accurate 90° joints

Design and description by marekzdansky , licensed CC-BY.