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This Strange Lock can be opened with a Carrot? 3D Printed “Rack Lock”

This is my recreation of a “Rack Lock”, an unusual lock design which seems to originate from Russia. In this video I’ll show you how it works and how I reverse engineered and 3D Printed a working model!

Get the models here:
Simple version –
Two bolt version with source file –

Oldest lock design ever found –

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50 3D Printing Tips and Tricks –

3D Printing Essentials –

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