Lok3D

Print-in-place hinge to 3D print

Generate a hinge that comes off the printer already assembled and moving, with a built-in pin, adjustable clearance and countersunk holes. Choose size and knuckles. Free.

  • Free
  • No sign-up
  • STL and 3MF
  • Millimeter precise
  • Runs in the browser
Example hinge made with Lok3D

The model opens ready in the editor, in your browser. Then you can tweak anything and download STL or 3MF.

About the hinge generator

A print-in-place hinge comes off the printer already assembled: the pin is printed inside the knuckles with a small clearance, and both leaves turn without any assembly. Use it for boxes, lids, small doors, models and cosplay.

The generator alternates the knuckles between the two leaves, builds the pin into one of them and leaves clearance around it. Adjust the length, leaf width, number of knuckles, clearance and screw holes.

What you can adjust

Assembled

The pin is printed inside the knuckles.

Adjustable clearance

0.2 to 0.8 mm (use the clearance test).

Knuckles

3 to 11 (odd number).

Countersunk holes

Up to 4 per leaf, for M3 or M4.

Ideas for use

How it works

  1. Choose the size, knuckles and clearance (run the clearance test first).
  2. Click "Create in the editor": the hinge opens ready, flat and open.
  3. Print it flat; then turn the leaves carefully to free it.

How to print

Material
PLA or PETG
Layer height
0.2 mm
First layer
Not squished (no elephant foot)
Supports
Not needed

FAQ

The hinge came out fused.

The clearance was too small for your printer. Increase it by 0.1 to 0.2 mm, or check whether the first layer is squished.

Can it hold a door?

It holds light doors (boxes, small cabinets). For large doors, use several hinges.

Is it free?

Yes. The maker and the editor are free and run in your browser. Without an account, the project is kept for 48 hours; with a free account, it is kept in your account.

Which format do I download?

3MF (recommended: keeps colors and opens directly in Bambu Studio, OrcaSlicer and Creality Print), STL or OBJ, always in millimeters.

Create your hinge now ↑

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