/diy/ - Do It Yourself

How bad is this for a nigger rigged arc welder? Am I going to get electrocuted somewhere down the line?
Is there something inherently wrong with using a triac dimmer as a power controller for the primary windings, other than the obvious fact it also drops voltage so it won't strike an arc on low settings?
Please ignore the abysmal woodwork. The mess of thin wire are three $1 chinkshit thermometers built into the front panel to monitor secondary temperatures.