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  1. #1

    Angry Plasma cutting pointer

    Hello all, I wanted to get a couple of pointers for making cuts with my plasma (spectrum 625). I was making cuts in some 12 ga. mild steel (using a guide) and I kept getting this "sticking" feel, but I'm dragging as smooth as I possibly can. The cut turns out like crap (for plasma) and it requires too much grinding to clean up! Any tips would be greatly appreciated.

  2. #2
    Join Date
    Oct 2007
    Location
    Indiana
    Posts
    541

    Default

    I use a stand off for most cuts. The cuts are cleaner and the tips last much longer.
    Tim Beeker,
    T-N-J Industries
    (my side bussiness)

    Miller Synchrowave 350LX with tigrunner
    Esab 450i with wire feeder
    HH135 mig
    Thermal Dynamics cutmaster 51 plasma cutter
    Miller aircrafter 330 - sold
    Marathon 315mm coldsaw
    vertical and horizontal band saws
    table saw
    Dewalt cut off saw
    Sand blast cabinet
    lots of hand grinders
    Harris torch
    beer fridge

  3. #3
    Join Date
    Dec 2005
    Location
    Dallas, TX area
    Posts
    267

    Default Plasma tips

    Remember: If the sparks are shooting straight down, you're moving the torch too slowly. If the sparks bounce back, you're moving too fast. You will be hard pressed to cut 12ga too fast. The sparks should come out of the bottom at approximately a 15 degree angle. Good luck.
    Triggerman

    Ammonia refrigeration tech
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    "A professional knows what to do. A craftsman knows why."

  4. #4
    Join Date
    Mar 2006
    Location
    Queens NY
    Posts
    1,547

    Default

    what is available for stand off other than the roller guide?

    i just bought a drag tip setup but it doesn't provide any stand off like i thought it did, what's the point ?

  5. #5
    Join Date
    Oct 2007
    Location
    Indiana
    Posts
    541

    Default

    My Thermal Dynamics came with one, I assumed they all did.
    Tim Beeker,
    T-N-J Industries
    (my side bussiness)

    Miller Synchrowave 350LX with tigrunner
    Esab 450i with wire feeder
    HH135 mig
    Thermal Dynamics cutmaster 51 plasma cutter
    Miller aircrafter 330 - sold
    Marathon 315mm coldsaw
    vertical and horizontal band saws
    table saw
    Dewalt cut off saw
    Sand blast cabinet
    lots of hand grinders
    Harris torch
    beer fridge

  6. #6
    Join Date
    Oct 2007
    Location
    gate city virgina
    Posts
    213

    Default

    well you could use a roller guide but they make some thing akward. or just hold it by hand a bit above the metal thats what y buddy does of course sometimes we have to do some grinding to touch up stuff but hey it works.

  7. #7
    Join Date
    Nov 2005
    Posts
    130

    Default Door Chart ?

    On my mig welders there's a door chart that tells you how many amps to use for the thickness you're welding.
    Is there a chart somewhere that tells you how many amps to use to cut the thickness of metal you're cutting with plasma ?

  8. #8
    Join Date
    Oct 2007
    Location
    Cave Creek Az
    Posts
    962

    Default

    Use a guide for cutting straight, piece of 1/8"x1" hot rolled is fine. Clamp it in place then run a piece of soapstone back and forth across it. The soapstone lubricates the drag tip and lets it glide across the cut. Also, a light touch is required.
    Laiky, what kind of machine do you have?

  9. #9
    Join Date
    Mar 2006
    Location
    Queens NY
    Posts
    1,547

    Default

    Spectrum 375

  10. #10
    Join Date
    Aug 2006
    Location
    near rochester NY
    Posts
    9,881

    Default

    a light tuch and proper speed dose the most to keep it on track and cutting nice. i use a wire brush on my tip inbetween cuts to keep it clean, that might help with it sticking. lots of slag means too slow of a cut speed usualy. takes a little getting used to to learn the best speed for the matereal. after that its all good.
    thanks for the help
    ......or..........
    hope i helped

    feel free to shoot me an e-mail direct i have time to chat. james@newyorkmetalart.com
    summer is here, plant a tree. if you don't have space or time to plant one sponsor some one else to plant one for you. a tree is an investment in our planet, help it out.
    JAMES

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