From: none@none.com99   
      
   On 10/27/2025 1:50 PM, Snag wrote:   
   >    I got the new pot installed in the foot pedal to my TIG machine   
   > today . Same 47k ohm rating as the original . But there's something   
   > weird going on , I'm not getting the amperage I set the dial for , it's   
   > lower than the setting . Not an earth shaking problem as I have never   
   > used the full amperage and I can control it now . Still , I'd rather get   
   > the amperage I have it set at instead of guessing .   
      
      
   Pots can have different curves to their change in resistance on the   
   sweeper.  For something like that I would think a linear curve would be   
   best, but it might be worth some research.   
      
   Its pretty easy to stick a meter on it and check total value and the   
   sweeper value.  I'd probably do that first.   
      
   Then I might check to see if the pot is at max and min values at max and   
   min pedal travel.  It might be possible to stick it in with the knob or   
   ring not lined up correctly.  If that happens you can break the pot in   
   some cases by stomping on the pedal.   
      
      
      
      
      
   --   
   Bob La Londe   
   CNC Molds N Stuff   
      
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