A good technique is to move the tool once across the bench grinder for no more than a few seconds. Then dip it in the water. If the steel edge does overheat and turns color, grind the edge back to ...

The base and bed of the machine are welded from scrap steel I-beams ... The angle grinder plays a prominent role in the build, as do simple tools like a hand drill, files, and a welder ...

The contraption holding the angle grinder – a welded piece of steel bolted to the sliding mechanism – has a grip for the user to seamlessly slide the tool across the table. The operation is ...