thingiverse
Programmable combination lock
This is a programmable combination lock. Insert the pins on the program wheels to make the combination lock open by different combination digits. The dial goes from 0 to 39.
This combination lock uses the same dial to enter the code and open the latch, unlike other combination locks found on Thingiverse. You can built this into your own safe door, or use the supplied case, meant for demonstrating how a combination lock works.
You should turn the dial 4 times counter clockwise to the first number, 3 times clockwise to the second number, two times counter clockwise to the third and then clockwise until the latch opens.
Watch this video to get details how a combination lock works and how to dial the numbers: https://www.youtube.com/watch?v=jz2WVSoQBxM
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Frequently Asked Questions
How do I download Programmable combination lock?
Click the "View on thingiverse" button above to visit the original model page on thingiverse. You can download the STL file directly from the creator's page for free.
What 3D printer can I use for this model?
This STL file is compatible with most FDM 3D printers (Creality Ender 3, Prusa MK3S+, Bambu Lab, etc.) and resin printers (Elegoo, Anycubic). Check the original page for recommended print settings and materials.
Is this 3D model free to download?
Yes, this model is available as a free download on thingiverse. Some creators accept tips or donations.
Can I modify this STL file?
Most STL files can be modified using free software like Blender, TinkerCAD, or Meshmixer. Check the license on the original thingiverse page to see if modifications are permitted by the creator.