Im a design engineer, you think i wont be taking it apart to see what;s insideHoping for some inside views of it....! ( warranty permitting ).
Think it my crap photoIs it me,or has it moved over to the right of the trolly?
Yes, its MIG, DG TIG & Stick. going to try all 3.Is that one of their inverter welders?
The clear hose is the gas hose for the MIG, or for the separate wire feeder, or tig, what ever you plug in the front gas port?Whats the clear bit of plastic hose and all the spare holes in the front
From what i have been reading its to fine tune the nature of the arc. =It will be interesting to know if there is a reduction in spatter for mig welding as i believe it has an adjustment to reduce that, correct me if i'm wrong?.
Looking forward to seeing if it really does make a difference to, as it can adjust the TIG and ARC functions as well!!For the vast majority of MIG welding the electrode (wire) is positive potential with the work being negative. MIG welding below 250A is normally carried out in dip transfer mode this means that the wire is constantly dipping into the welding pool & burning back which creates a stable crackle or buzzing sound if set up correctly. Every machine has a certain level of inductance in its output circuit. This inductance greatly affects the welding performance of the machine when welding in dip transfer mode below 250A. Too high a value would result in a hot unstable arc, too low a value would give rise to excess splatter and a cold poorly penetrating weld. The amount of inductance on this machine can be varied using the ARCTUNE control. The higher the weld power, generally the more inductance is required. By varying the inductance, the amount of splatter produced in the weld can be reduced to a minimum to give a nice clean weld.
From speaking with Les, they are dual Mitsubishi IGBTs.- for a full H-Bridge, you need 4 switching components, which would mean 4 IGBTs not "only 2". They may be dual-modules.
- as for "drawing their own Litz wire", they may twist, weave, or braid the strands and then wind the coils, but I doubt if they actually draw and then insulate the copper.
They seem to be proud of not using a microprocessor, which implies that the controls are analogue, controlled by potentiometers. The Arc Tune control seems to be a centre-zero potentiometer, which effectively varies the inductance of the output circuit. Inverters normally do not have inductors in series with the output, so unless they are using a Saturable Reactor or Transductor, I think this control simulates variable inductance by altering the reaction time ( hysteresis ) of the CC feedback circuit for MMA, and the CV feedback for MIG.