Third hand tools for boards positioning

🧰 General Description – 3D Printable Woodworking Clamp Set (9-22mm)

A practical set of three 3D-printable tools designed for makers, woodworkers, and DIY enthusiasts 🛠️. Each tool is optimized for easy use, precision, and reliable holding power when assembling wooden boards, panels, or other building materials 📏.

These custom clamps help with:

• 90° corner joints 🔲
• T-joint board positioning 🔧 

Print once, use endlessly – compact, lightweight, and super useful additions to any workshop or home project! 💡

Board thickness range: 9 mm to 22 mm (in 1 mm increments)

✨ New – Scaling Calculator even in INCHES!

Need a perfect fit for a non-standard board thickness (e.g. 18.4 mm, 16.8 mm, etc.)?

→ Open Scaling Calculator

Just enter your board thickness and the calculator will give you the exact scaling percentage to use in your slicer.
 

🔧 90° Corner Jig

A precise tool for holding two boards at a right angle, ideal for building frames, cabinets, boxes, and shelving. This jig holds boards face-to-face and makes it easier to drill, glue, or screw them together.

✅ Perfect for corner joints
✅ Ensures strong, square connections

🔧 T-Joint Positioning Jig

Designed to help you align one board in the center of another, forming a T-shaped joint. Great for tables, shelves, or support frames. This tool ensures accurate and centered positioning every time.

✅ Simplifies T-joint assembly
✅ Ensures symmetry and balance
✅ Ideal for structural frames

🔧 Mid Edge Jig

Allows precise clamping of one board's end to the another board’s side when one is shorter then second – perfect for under-table supports or top rail of cabinet. Perfectly work with 90° Corner Jig.

✅ Secures end-to-side joints
✅ Helps maintain straight lines
✅ Excellent for bracing or internal framing

Two versions for each size:

• AMS (multi-color ready) in .step
• NO_AMS / Single Color  in .stl