How to flex 230v welder into two 115v circuits? Hi, I've got a 230v MIG welder that I would similar to...

Hi, I've got a 230v MIG welder that I would similar to to run off two separate 115v circuits.

The current connector is a 3-prong, approaching an oven takes. Two 115v power lines and a ground.

What I would approaching to do is run this welder off of two seperate 115v circuits. I've see this done before. It's unachievable for me to access a single 230v power supply.

This is what I assume I need to do:
Once I remove the connector from the welder supply flash, I will hook up one of the hot lines (black/red) to the black line on a 12/3 ext. cord, and consequently attach ground to ground. The white line from the extension cord will call off, and be connected to nothing.

The remaining hot cable (black/red) from the welder will be connected to the black line on another 12/3 extension cord. The white and ground wires on the extension cord will be terminated.

Each extension cord will be connected to a separate 115v circuit.

Sound right?

Thanks contained by advance.
How close can an electric wall oven be...
Answers:    That is not a honourable idea - the current required, 21A at 230V would exceed the ampacity of even a lashing duty appliance circuit (20A). Code doesn't permit this type of hookup, any. You'ld be better of having a dyed-in-the-wool 240V, 30A circuit and receptical installed.
What Equip./Tools do I inevitability?
first use a volt meter to see if both hot wires =230 . then line it . one hot wire from respectively and one ground. But this is not an approved action.