Is this 3D model free to download?

Yes, 3 Pin Lock With Key is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by theproadam, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

3 Pin Lock With Key

Source: Thingiverse by theproadam

The 3 Pin Lock With Key is a free printable 3D model from Thingiverse by theproadam. ---- Sanding required for snug fit. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

331 saves Source: Thingiverse Updated 2026-10-05

Tags: 3, Pin, Lock, With, Key

About this model

---- Sanding required for snug fit. ---- Fine Sandpaper will do. (P400) The cylinder slides free if the all the pins are aligned correctly, so I would recommend to add some kind of restrainer to prevent the cylinder from sliding out. I would recommend placing the bed a bit closer (paper thickness + slight friction) to the nozzle so both sides of the lock look nice. The lock works best/smoothest when both the cylinder and the cylinder holder are exactly aligned. You can do this by pushing them flat on a flat surface. TODO: - Add a mover thingy and retainers to ensure that the cylinder stays in place. - Add some kind of arm that the key moves when its unlocked. Instructions: 1. Print The Key (Key.stl) 2. Print The Lock Cylinder (Cylinder.stl) 3. Print The Outside Housing (CylinderHolder.stl)…

Frequently asked questions

Is this 3D model free to download?: Yes. 3 Pin Lock With Key is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?: The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by theproadam.
Who made this model?: Designed by theproadam, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?: Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.