High-level video from Ivan Al-Nohandi on how to make rifled barrels out of hydraulic tubes at home using ECM. He used 3D-printed tools--fitting/fixture and pilot--to facilitate centering the rod for boring. The rifling mandrel also is 3D-printed, and Ivan demonstrates inserting the copper wires into it.



Do-It-Yourself Electrochemical Machining v2.1 Barrelmaking Package