AlainB
Member
This is borderline as far as electronic is concerned but here it is anyway.
Making it is very easy, just a matter of finding 2 old microwave ovens (the older the better), removing the secondary winding of each transfomer and replacing it with 20 turns of gage 10 stranded wires, wiring these 2 transformers in serie to make the base for the welder. It is very simple.
I plug each transformer in different circuits in the house. Even a strong 20 Amp. circuit is not enough to carry the load of the 2 transformers together.
As for any other welder, using a suitable welding rod is crucial. Preheating the work make the starting easier.
A lot more about MOT welders can be found on YouTube including the warnings about discharging safely the high voltage capacitor inside the Microwave before doing anything else.
Making it is very easy, just a matter of finding 2 old microwave ovens (the older the better), removing the secondary winding of each transfomer and replacing it with 20 turns of gage 10 stranded wires, wiring these 2 transformers in serie to make the base for the welder. It is very simple.
I plug each transformer in different circuits in the house. Even a strong 20 Amp. circuit is not enough to carry the load of the 2 transformers together.
As for any other welder, using a suitable welding rod is crucial. Preheating the work make the starting easier.
A lot more about MOT welders can be found on YouTube including the warnings about discharging safely the high voltage capacitor inside the Microwave before doing anything else.
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