DIY barrel rifling using salt water, electricity and a 3D printed jig
By ImproGuns
Here are pictures of a preliminary setup for creating rifling grooves in a piece of steel tubing by using a 3D printed spiral insert, lots of salt water and a battery charger. Electrochemical Machining is a process whereby metal is removed by passing an electrical current through a solution, the insert in this case exposing […]
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Source:: The Firearm Blog
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