Hello Mig welder machine say weld metal 5/16 inch thick ,question if got metal 1/2 thick ,can person Go over weld couple time to get enough heat penetration? In another word if machine only can weld 5/16 thick metal ,how will you weld metal thick 5/16 ,be side buying another bigger welding machine? ...

Hello
On youtube some people change the Harbor Freight 90 amp welder to negative gun and to positive ground.
They do that by adding capacitor and Bridge rectifier into the circuit.
Anyone on this forum ,did you try the change over,did you find the welder any better after the change over
mrel.

Hello
Stick welding (arc) how do you control heat ?
Mig welding control the heat by lowing the current or voltage.
Which is more easy to use Stick or Mig?
mrel