He recently worked out a relatively inexpensive and easy way to etch metals using some chemistry skill and a little bit of electricity. After preparing a set of stencils and cleaning the metal ...

and sticky stencils. The process is quite simple, but be careful not to touch the positive and negative ends of the clips together as the resulting arc could cause a fire. Metal etching chemically ...

Etching labels onto your metal tools requires a handful of components: a container of ordinary table salt, a bottle of white vinegar, some cotton swabs, sticky stencils, and most importantly ...

To actually etch a design in a piece of metal, simply place the piece on a metal plate, put the stencil down, and hold a felt-covered electrode moistened with electrolyte down over the stencil.