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  1. #1
    Join Date
    Jun 2009
    Las Vegas Nevada

    Default getting better with D165?

    I need an opinion from the smart guys on this forum. I've got a D165 that I purchased only to do aluminum work. If you search my threads you'll see I'm learning but slowly.

    Now I'm pondering whether I should buy one of the flow indicating regulators with secondary purge ($255) because I don't have much idea about gas flow?

    Is that a reasonable investment for a low grade amatuer and will I be able to get a better handle on the process? The idea that I'm wasting gas isn't the driver so much as I think I had too much gas blowing the arc around recently. Just looking to pull this together....
    Miller Diversion 165
    1966 Bridgeport Mill
    Leblond 15x 35 Regal Servoshift lathe
    Solberga SE 1425 Drill Press
    Bigass Bandsaw
    Hydraulic press
    small surface grinder
    Belt sander
    Tons of grinders and hand tools
    Knife edge Balancing rollers
    Heat and AC in the garage

    Jags and racing Triumphs

  2. #2
    Join Date
    Oct 2004
    Edmonton, Alberta


    Waste of time and $$. All you need is more practice. Once you get better, upgrade to a machine with more ooomff.

  3. #3
    Join Date
    Nov 2012
    Northern Arizona


    I have add and the bouncy ball is fun to watch. If you get one you can buy an htp for cheap. They are decent. I've also bought them off eBay with good luck. That is just something to spend money on. It will not make you a better welder. Are you using the right tungsten and sharpening it correctly?

    If you want to spend some coin a miller digital elite hood would be sweet.
    MillerMatic 251
    Maxstar 150 STH
    Cutmaster 42
    Victor Journeyman OA

    A rockcrawler, er money pit, in progress...

  4. #4
    Join Date
    Aug 2010
    Los Angeles


    I understand your concern with gas flow. Wondering if what is indicated on your flowgauge is part of the puzzle. I use portable flowmeters at my benches to check the flow right at the cup. I chose the one from This one is graduated in CFH, not LPH like the cheap ones. They are about $30 and can determine if you have a compromised flow somewhere.

    Some causes of bad gas coverage is wrong gas, crushed collet, broken backcap, unseated collet body, loose fittings, punctured powercable, pinched hose, too much or too little gas, and so on.

    What are the specifics of your weldment? And what fillers are you using? Cup size and flow?

    I really like the Diversion series. If you could make my way, I would be happy to plug it in and give your machine a whirl. Perhaps the issue can be resolved.
    Attached Images Attached Images
    Nothing welded, Nothing gained

    Miller Dynasty700DX
    3 ea. Miller Dynasty350DX
    Miller Dynasty200DX
    ThermalArc 400 GTSW
    MillerMatic200 with spoolgun
    Lincoln SP-170T
    Linde UCC305 (sold 2011)
    Hypertherm 1250
    Hypertherm 800
    PlasmaCam CNC cutter
    Fadal Toolroom CNC Mill
    SiberHegner CNC Mill
    2 ea. Bridgeport
    LeBlond 15" Lathe
    Haberle 18" Cold Saw
    Doringer 14" Cold Saw
    6 foot x 12 foot Mojave granite

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