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3-Digit Combination Padlock Kit Card – 3D printable model from MakerWorld MakerWorld
Engineering

3-Digit Combination Padlock Kit Card

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Update (7/14/2023) - no glue version! I've re-worked a few things so that everything presses or snaps together, making it a great project to put together with kids.This (mostly-flat) kit card is a bit of a challenge to make but will produce a working 3-digit combination lock, just like the one you used to have on your high school locker. Well, sorta like that one. It requires an impeccably tuned printer (some of the parts are very tiny), a steady hand, tweezers, and maybe some magnifiers. It prints without supports and snaps together without any glue, fasteners, or other hardware.I learned how a combination lock works from this video, and based this design off of that. It consists of three dials which have release notches that all have to be lined up to open the lock. There are little pins on each dial that push on each other to align the notches, and you can set to location of the pins during assembly to create unique combinations.About the dial: I didn't have enough room to put numbe
Category
Engineering
Source
MakerWorld
Published
Updated
What you need to print this: Intermediate Low confidence
Why?
no supports · significant post-processing
Support-free Single piece Hardware needed
Supports 0/3
Assembly 0/3
Settings 1/3
Bed size 0/3
Post-process 2/3
Printer
FDM / FFF
File format
STL
Material
Post-processing
Gluing, Hardware
Software
Cura, PrusaSlicer, or similar
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