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Cutaway pin tumbler lock
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A cutaway model of a 3-pin pin tumbler lock.
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Model information
- Source
- Printables
- Category
- Engineering
- License
- Creative Commons — Attribution
A large cutaway model to demonstrate the internal mechanisms of a lock.
Optional spool pins can be used instead of standard driver pins to demonstrate how security pins work.
Assembly:
- Insert the key into the plug
- Add the key pins with the larger bevel facing towards the key
- Hold the lock housing upside down and insert the driver pins
- Insert the plug into the housing
- Rotate the retaining ring into place and remove the key
Printing:
I found that printing the plug and housing with the pin stacks facing vertically (rather than printing the plug face down) provided the best results, as the large cylinder is easier to sand than the pin stacks are.