3D-printable Dumbbell Collars / Barbell Clamps Kit

Lock your gains with precision and style!

This 3D-printable Dumbbell Collars / Barbell Clamps Kit is designed to keep your weights secure and your workouts smooth.

3 different sizes:

IN_DIA 31 mm × L 50 mm – ideal for standard dumbbell bars

IN_DIA 36 mm × L 54 mm – fits adjustable dumbbell or light barbell bars

IN_DIA 43 mm × L 69 mm – perfect for Olympic-style barbells (Ø42–45 mm)

Slotted top design for flexibility and grip strength.

Single-bolt clamping system for quick tightening or release.

Print-in-place mechanism — no assembly, no fuss.

The curved inner geometry provides a solid hold on metal bars while protecting the surface. Perfect for home gyms, DIY workout rigs, or custom exercise equipment builds.

🔩 Material: PLA + or PETG for strength and elasticity
🖨 Print Settings: Layer height 0.25 – 0.3 mm, Infill 25 – 30 %, Supports off
💡 Tip: Print in pairs and adjustability with slightly scale for a perfect fit on your bar type - diameter.

Train smarter, clamp harder.