3D Printed Doorknob Accepts Fully Mechanical Password Input

If you didn’t know, you can 3D print your very own doorknob and even design it to have it’s very own password. This mechanical doorknob design uses mechanisms similar to early mechanical calculators to allow a numerical input resulting in mechanical motion. You can check out how the doorknob works in the short video below.

Trevor is a civil engineer (B.S.) by trade and an accomplished writer with a passion for inspiring everyone with new and exciting technologies. He is also a published children’s book author and the producer for the YouTube channel Concerning Reality.


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