Many valid points here, and I'm taking notes. I must ask though, have you heard of the Haas-Kamp conversion? That is what I read about it, before I made my purchase. It still preforms at 200A @ 100% duty cycle with this conversion. I read of not one negative review with this process. As far as leaving it at 3 Phase, I would be forced to a genset or the RPC.
Have you run a converter with a 3 Phase mig successfully? I was told the waves would be to dirty for a mig to run effectively.
All thoughts and advice appreciated. I am learning.
I do not want to invest a lot of coin in the wrong direction to just have to back track. My mig has been sitting since I purchased it last Jan.
When you study it all up, there is no way Miller made a three phase mig welder that runs on 400 volts, or anyone else for that matter, that can be supplied with 240 volts and missing one limb and still work properly, it just is not possible, unless you spend more money on making it possible, in which case you would have to tear it to pieces, rewind it and loose lots of time and money in the process, re inventing the wheel, I would not dream of it, I looked at a few that people converted on the tube a long time ago, and to anyone who can weld these things were very obviously a waste of time.
If it worked I would not have spent 3,400 on a new single phase mig when I could buy three very good second had three phase migs for the same money.
Now if I could find a three phase mig that was designed to run on 240 volts
from the beginning, then I would see more potential in that, but over here in Ireland, three phase means 380 or 400 volts, not 240, and that is a huge drop in performance, from three 400 volt windings down to two 240 volt ones on
the primary side, that has an unimaginable crippling effect on the secondary
windings, its all down hill am afraid.
I have no idea how possible it is with the new inverter tech, but I like the transformer based units, I can put a control card from another brand into mine if I need to, I can even add a feeder that has its own control card if I cant get the genuine one, and it will still work like new again, inverter tech is great, but I like to fix my own, so I avoid what I do not know.