#ECMRifling
Rifling a Barrel in the Bathroom using Electrochemical Machining
If you’ve ever wondered how you can get just a little bit more functionality out of your bathroom look no further. Twitter user Freegunzone has shown us his method of rifling a barrel inside his own bathroom. Using a process called Electrochemical Machining, this adventurous gunsmith is making homemade barrels with just a few simple tools and chemicals.
Make a Factory Quality 9mm Rifled Barrel in your Kitchen Using Salt Water and Electricity (ECM)
Back in March 2017, I reported on a proof of concept attempt to create rifling grooves, essential to ensure stabilization of bullet, in a length of steel tubing using a process known as Electrochemical Machining (ECM). This was achieved using a simple jig designed using a 3D printer combined with copper wire laid into the ‘mirrored’ groove channels through which salt water is continuously passed through using an inexpensive electric pump and bucket set up. Essentially this process is the reverse of electroplating, instead eroding away an exposed surface, in this case, a series of shallow channels usually produced using a rifling cutting tool or by having a ‘button’ forced through.
