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Welding Discussions
A place to talk about how-to, techniques, troubleshooting, welding processes, welders, plasma cutters or other metalworking tools.
Topics: 28,868 Posts: 282,961
28,868 282,961
Welding Projects
Whether you want to build it or fix it - share advice, ideas, plans and photos.
Topics: 5,832 Posts: 62,884
Last Post: Camera Mount
5,832 62,884
ryanjones2150
Motorsports
Topics ranging from stock cars to street rods and motorcycles to trucks.
Topics: 551 Posts: 6,150
551 6,150
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What's Going On

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There are currently 148 users online. 0 members and 148 guests.

Most users ever online was 15,465 at 03:37 PM on 12-31-2018.

Miller Welding Discussion Forums Statistics

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Topics: 35,255   Posts: 351,999   Members: 70,789   Active Members: 188
Welcome to our newest member, Mcable.

Latest Topics

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  • 1997CST
    Reply to Bobcat 225 Adjusting Idle/Hz/RPM and Voltage
    by 1997CST
    Has someone fooled with the rheostat? Have you welded with it to see if the heat increases when you turn the rheostat?
    Today, 06:00 AM
  • 1997CST
    Reply to XMT350 exploded capacitors
    by 1997CST
    Try doing diode tests across each. If there is a dead short across any of them both need to be replaced. If one tests different from the other thats a sign one is bad also. Check the diodes and resistors on the power board....
    Today, 05:57 AM
  • Bushytails
    Reply to Melting Tungsten
    by Bushytails
    All multimeters measure polarity. If it's a digital one, it'll show a positive (no polarity symbol) reading if you connect the red probe (which should be in the V/ohms socket on the meter) to positive and the black probe (which should be in the common socket on the meter) to negative, and a negative...
    Yesterday, 07:19 PM

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  • miller@hares.net
    Melting Tungsten
    by [email protected]
    Multimatic 220 set to 1/8 mild steel. I didn't touch the work or filler wire, the arc is about 1/8 inch. Using the tungsten that came with the welder from the factory. I'm a newb with only a few minutes actual tig time, but constantly needing to resharpening my tungsten after a minute or two. I posted...
    05-13-2021, 07:41 PM
  • Rscott
    Bobcat 225 Adjusting Idle/Hz/RPM and Voltage
    by Rscott
    Bobcat 225. I found here in the forum how to adjust low and high idle using a Hz meter. I did that and when I check AC voltage at the receptacle, I am only getting 90vac. Do I adjust the RPM higher or look for a problem somewhere else?...
    05-14-2021, 06:48 AM
  • Torchplasmasales
    Broken Welding Machines and Plasma Cutters
    by Torchplasmasales
    Hello,

    Please forgive me if this is outside of the rules on this board.

    I wanted to get the word out that I buy nearly any kind of modern-ish broken (mostly) welding machines and plasma cutters. I have been buying several victor brand and spectrum plasma cutters each month...
    05-10-2021, 04:59 AM
  • johhnyman
    XMT350 exploded capacitors
    by johhnyman
    Does anyone know how to test the IGBTs on an xmt350? My capacitors exploded yesterday. Heard that it takes the IGBTs with them or the IGBT caused it and the PC-2 needs to be checked out and some resistors replaced at least if not an entirely new PC-2 interconnect board.

    I am going through...
    05-14-2021, 05:03 PM
  • Torchplasmasales
    Please Help with XMT 350 CC/CV Auto-Line low voltage displayed, no welding output
    by Torchplasmasales
    Good Morning,

    I have a Miller XMT 350 CC/CV Auto-Line S/N MB29012A. Its connected to single phase power which is at around 245 volts AC phase to phase.

    The machine starts up and shows data on the display. Any setting with a voltage display reads between 0v and 0.3v. The amperage...
    05-08-2021, 02:20 AM
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