mike 109444
Member
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The reasoning behind the digital read out was to give a much clearer indication of the wire feed setting. As so many hobby type welding machines seam to suffer with poor regulation of power to the motor thus causing the speed to drift up or down and also the pot/wire feed control knob is only part of the circuit that is controlling the power, there will be other resistors in that circuit that will heat up and cool down causing a change in resistance = change in feed speed!
There have been many post from users saying one minute it welds ok then the next it is feeding to fast or to slow. Sometime it could also be that the manual for the welder does not make it clear that there are setting positions between the marks on the wire feed dial!! So someone new to welding may set there machine to say power level 2 (or 1Min + Hi, say) then using the mark on the wire feed control set it at 1, pull trigger and get putt….putt…putt…putt type welds (not enough wire feed) so up wire feed a notch to 2 then put..put..putt as it’s now feeding faster !! but still crap. So up another notch. Now the wire is feeding (hitting) the metal to fast so they start to mess with the power and before you know where you are there on the forum and get a lovely welcome from us all.
With a digital voltage reading it is easier to fine tune and comeback to same setting more accurately than a dial with lines.
Note the welder I fitted it to has the voltage permanently there on pcb (as set by wf control) and is switch in by a relay plus a digital meter looks cool
There have been many post from users saying one minute it welds ok then the next it is feeding to fast or to slow. Sometime it could also be that the manual for the welder does not make it clear that there are setting positions between the marks on the wire feed dial!! So someone new to welding may set there machine to say power level 2 (or 1Min + Hi, say) then using the mark on the wire feed control set it at 1, pull trigger and get putt….putt…putt…putt type welds (not enough wire feed) so up wire feed a notch to 2 then put..put..putt as it’s now feeding faster !! but still crap. So up another notch. Now the wire is feeding (hitting) the metal to fast so they start to mess with the power and before you know where you are there on the forum and get a lovely welcome from us all.
With a digital voltage reading it is easier to fine tune and comeback to same setting more accurately than a dial with lines.
Note the welder I fitted it to has the voltage permanently there on pcb (as set by wf control) and is switch in by a relay plus a digital meter looks cool