This undertaking began by discovering a few microwave ovens without spending a dime, like I did right here in a previous project video. 2 MOT’s have been modified in order that the output was round 30 VAC and the amperage ranged from Zero-120 amps.
I picked up some scrap steel from a welding firm down the highway, and altered out the blade on my miter noticed with a 12″ steel slicing wheel.
I reduce one of many steel items into smaller bits, so I would have extra items I might use to observe welding with.
The MOT stick welder is not a brand new thought, however in my expertise of making an attempt to duplicate different MOT stick welder tasks on the web, the welder both acquired so sizzling that the insulation on the wires melted and shorted it out, and/or it did not present sufficient energy to strike and preserve an arc. I am beneath the impression that up till now, they have not labored for any sensible use.
To date, I have never seen a video or undertaking the place anybody truly welded something helpful with one in all these “so-called” microwave welders. The most that is been proven is to put a bead on a bit of steel. But this does not show it could possibly weld. My earlier makes an attempt might additionally lay a bead, however they did not have sufficient warmth or penetration to make something stick.
A welder additionally wants a option to reliably management the amperage (which I have never seen different tasks do). I noticed one undertaking the place dimmer switches have been used on the first coils, nonetheless dimmer switches are solely in a position to deal with round 600 watts, and these stick welders require upwards of two,000-Three,000 watts. In my expertise, the dimmer switches fail in a short time and inside a minute of making an attempt to weld.
I do not declare to be the primary, or the perfect, to make a MOT welder work. My declare is simply that it is a manner I’ve found out that really does work with satisfying outcomes.