Thingiverse
3D Printed Challenge Lock
door gammang
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This is my 3D Printed Challenge Lock I designed for the Locksport community. It is designed to be fully 3D Printed, and as long as your printer can manage 0.4mm tolerances, it's no problem.
Pins are 5mm in diameter, and you will need 4 pen springs of appropriate diameter and length.
When you insert the key, you may need to wiggle it in and out as 3D printed parts are not perfectly smooth and if your 3D printer has a bit worse tolerances it will be rougher (my printer has a 0.2-0.3mm tolerance and everything slides very smoothly with a bit of gap.
When you try to turn the lock you have to put a bit of force and turn it a few times to loosen it out. Don't worry, it won't break, just you have to put in a bit of force as it is 3D printed, hence imperfect tolerance, as I mentioned earlier.
Design considerations:
1. Very difficult, but still possible
2. Fully 3D Printable without supports except springs
Features:
1. Countermilling/threading in all chambers
2. Hard to tensio
Pins are 5mm in diameter, and you will need 4 pen springs of appropriate diameter and length.
When you insert the key, you may need to wiggle it in and out as 3D printed parts are not perfectly smooth and if your 3D printer has a bit worse tolerances it will be rougher (my printer has a 0.2-0.3mm tolerance and everything slides very smoothly with a bit of gap.
When you try to turn the lock you have to put a bit of force and turn it a few times to loosen it out. Don't worry, it won't break, just you have to put in a bit of force as it is 3D printed, hence imperfect tolerance, as I mentioned earlier.
Design considerations:
1. Very difficult, but still possible
2. Fully 3D Printable without supports except springs
Features:
1. Countermilling/threading in all chambers
2. Hard to tensio
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