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3D Printed Telegraph Key & Sounder

There are some examples of 3D printed telegraph keys, but never a complete system until now! This instructable contains all the 3D designs for both the telegraph key and sounder.

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There are some examples of 3D printed telegraph keys, but never a complete system — until now! In this instructable you can download all the .STL files and print your own telegraph system which can be downloaded on the last step.”

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