Alienbliep:
I've trying to dial in my welder.
I troef it on 50ms pre weld 500ms wait 50ms weld
I immediatly blew a hole in the nickel plates.
Also i troef to washer at 50, 500, 500 and they are gone now too :o
Is this because it has nothing but wood under it or do i need the limit the current?
Don't limit the current.
I think the weld-pin force is too low and so it makes not enough contact to the battery. The weld-pin force is critical and should be equal for both welding-pins.