【3D Printing Application】Forgot Your Password and Can't Open It? A Deep Dive into Combination Lock Structure!
Why can't a lock be opened if you forget the password? The principle behind common combination locks is actually quite simple. The Ultimaker 3D printer demonstrates it for you, with a detailed analysis of the structural principle and even the ability to change the password yourself! The download link is at the end of the article!
Using an Ultimaker S3 3D printer with Tough PLA filament, which is harder than common PLA and less prone to delamination or warping, makes it suitable for products requiring post-processing.
The internal structure of the combination lock mainly consists of a shackle (cane-shaped) and four small parts with numbers. The shackle has four protruding pegs. When the password is incorrect, the number wheels will jam the shackle, keeping it locked.
When the password is rotated to an incorrect number, the protruding pegs will obstruct the number wheels, preventing the shackle from being smoothly removed.
When the security lock is rotated to the correct password, the protruding pegs can perfectly pass through the internal grooves of the number wheels, allowing the shackle to be smoothly removed and unlocked!
The 3D file for the combination lock includes numbers 0-9. The password for the security lock demonstrated this time is 5719. After printing, you can choose your desired numbers as the password, combine all the parts, and fasten the screws to complete your unique combination lock!
(When rotated to the correct password, the security lock parts can be smoothly removed to unlock.)
Using 3D printing technology can quickly and cost-effectively produce prototypes. Users or manufacturers can save budget during the testing process and shorten lead times before production, avoiding design errors in preliminary work and efficiently completing samples that meet requirements.
(After the 3D printed combination lock is complete, it can be tested on the item to be locked, and dimensions can be adjusted and tested as needed.)
Did you enjoy this share? With an Ultimaker 3D printer, you can unleash your imagination and find widespread applications in various fields. Contact us now to learn more about 3D printers.
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