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  • Plasma Circle Cutter

    I was going to fab up a circle cutter attachment for my 375 and had a question. I noticed that the straight cutter guide that I purchased is made of a plastic material, is that because a material that conducts electricity would cause a problem when attached to the cutter head on the torch? Or would it be OK to make one out of aluminum or brass?
    Miller Syncrowave 200
    Homemade Water Cooler
    130XP MIG
    Spectrum 375
    60 year old Logan Lathe
    Select Machine and Tool Mill
    More stuff than I can keep track of..

  • #2
    I`ve made a couple out of steel with no problems at all. Some plasma cutters don`t like metal touching the side of the tip which may be why the guide you saw was made from a type of plastic.

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    • #3
      I havent had any troubles from my 375 x treame. My circle cutter is all metal and is basically an o ring the cutter guide and another o ring to hold it all to the outside of the retaining cup. I am still using the factory supplied cup so I believe that it is non shielded.

      Miller 211 A.S. and Spoolmate 100
      Stickmate LX 235 AC / 160 DC.
      Clarke 180 EN Just in case
      Spectrum 375 X-Treme.
      O/A Medium Radnor Torch, Large Victor Torch.
      Milwaukee 14" Chop Saw.
      4 x 6 Horizontal Band Saw.
      Rockworth 80 Gallon 2 Stage 16 SCFM @ 175 PSI , 15 SCFM @ 90 PSI.
      Jackson Passive shade #5 for the plasma.
      I almost forgot the Hobart XVP AD Hood.


      Projects and Misc Albums
      http://picasaweb.google.com/keesfriend Feel Free to Have a Look ( Just keep in mind I am an amateur )

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      • #4
        Thanks, I'' proceed with my plans!
        Miller Syncrowave 200
        Homemade Water Cooler
        130XP MIG
        Spectrum 375
        60 year old Logan Lathe
        Select Machine and Tool Mill
        More stuff than I can keep track of..

        Comment


        • #5
          Circle cutting guide

          In general as long as your guide uses the retaining cup you are good to go. The cup (unlike the tip) is not a conductive part of the cutting circuit.

          Hope this helps,
          Brian Brown
          Service Technician
          Miller Electric Mfg. Co.

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          • #6
            Here is a pic of mine. Not sure if it will help or not, I just thought I would post it incase someone wanted to use part of the idea.




            Miller 211 A.S. and Spoolmate 100
            Stickmate LX 235 AC / 160 DC.
            Clarke 180 EN Just in case
            Spectrum 375 X-Treme.
            O/A Medium Radnor Torch, Large Victor Torch.
            Milwaukee 14" Chop Saw.
            4 x 6 Horizontal Band Saw.
            Rockworth 80 Gallon 2 Stage 16 SCFM @ 175 PSI , 15 SCFM @ 90 PSI.
            Jackson Passive shade #5 for the plasma.
            I almost forgot the Hobart XVP AD Hood.


            Projects and Misc Albums
            http://picasaweb.google.com/keesfriend Feel Free to Have a Look ( Just keep in mind I am an amateur )

            Comment


            • #7
              Originally posted by tom37 View Post
              Here is a pic of mine. Not sure if it will help or not, I just thought I would post it incase someone wanted to use part of the idea.







              Necessity, the mother of all invention!, nifty rig their tom.
              If you want peace, be prepared for war!

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