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The most recent discussions

thrumming in harness MIG / GMAW

June 11, 2018, 6:46 pm

Hello all Upgraded torch / gun from some Crapomatic to Tweco #4 Classic. Tweco doesn vastly better than the Crapomatic, but still sometimes get this very characteristic problem - the torch and harn... Read more »

450A spray gun still good on 20%CO2 agomix?

May 7, 2018, 9:43 am

Simpler question - how many advantages will I retain if I get a 450A-rated GMAW / MIG gun specialised for spray, if I cannot move off Ar-20%CO2-2%O2 gas mix? Rich S Read more »


May 6, 2018, 2:20 am

It didn't. Not in any useful way anyway. I shortened a trailer axle today. Cut about 24-25 inches out in the middle. Then I clamped it up. Deliberately put a very slight arch in the setup wi... Read more »

how good Tweco Spray Master 450 Air Cooled MIG Gun?

May 5, 2018, 10:06 am

Hi all Shop I'm in is 100% dip-transfer and weaving. Everything matches, including torches. Common in UK. Torches rated 300A, but that's a reluctant 300A and you spent a lot of time coaxing it ... Read more »

Welding/brazing carbide and steel

April 30, 2018, 5:33 pm

molten glass . There's a glass bead maker here that wants me to make some rods for making the beads . The working end of these , that is in I'll be getting more info from her when we get together... Read more »

back on the tools again as welder

April 30, 2018, 7:27 am

Working in Devon, UK, as a welder. Making mainly quarrying equipment. Good to be back in the Trade - is hard work, but good to be back applying what I do know and learning a lot of what I didn't! ... Read more »

Why Should I Make a Budget?

  [ 2 ]
April 15, 2018, 6:25 pm

You say you know where your money goes and you don?t need it all wr itten down to keep up with it? I issue you this challenge. Keep track of ev ery penny you spend for one month and I do mean every... Read more »


April 2, 2018, 5:47 pm

Boy do I feel stupid. Some years back my dad brought a bunch of gas bottles over to my shop. Mostly owner bottles from his hardware store after he closed down. One was an extra large acetylene ... Read more »

Harbor Freight Welding Hood

March 17, 2018, 8:16 pm

My first autodark was a cheap HF a buddy of mine gave me as a thank you for fixing his boat trailer for him. I never considered one before that. I was amazed at how much difference it made weld... Read more »

FLUX CORE - Offending Welding Snobs Everywhere

March 17, 2018, 7:24 pm

I've said it before, but if all you are doing is field welding hot rolled LOW-C steel there is really no need for anything else. Its not pretty (for me anyway), but it fuses good and you can wel... Read more »

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The best rated discussions

Sears AC/DC 240/160 Welder $300

rating: 5

Craftsman 240/160 amp AC/DC Stick Welder Lets you weld overhead and vertically on materials up to 1/4 in. thick. Use with welding rods 1/16 in. and up. 3 welding currents: regular AC, DC reverse po... Read more »

Itchy/red eyes after O/A brazing refrigeration pipe. POE oil? Long

rating: 5

I am a refrigeration service tech and have been having itchy and red eyes off and on since the phase out of older refrigerants and usage of the newer ones with POE and Alkybenzine based oils (the ... Read more »

SC26502 semiconductor

rating: 5
  [ 2 ]

I was helping a friend troubleshoot an Airco Tig Welder. And I am pretty sure we found a GE SC26502 that is bad. I am reasonably sure it is an SCR. But can not find a datasheet for a SC26502 anywh... Read more »

TIG welding molybdenum ??

rating: 5

I know I should learn to walk first, but can one TIG weld molybdenum components with conventional equipment ? Steve Read more »

does aluminum spool wire have a "shelf-life"?

rating: 5

I was wondering...going to start a project and the aluminum wire in my spoolgun is a couple years old. Should I replace it? Nok Read more »

HELP - ThermalArc 185TSW

rating: 5

I used my TA185TSW to do some stick welding this afternoon, and everything went well after I unplugged the foot pedal. BUT when I connected the foot pedal and the TIG torch to do some more welding... Read more »

Pictures of repaired and repainted Miller XMT 300 CC/CV welder

rating: 5

First picture shows it dirty, dinged up and missing a switch. The rest show it cleaned, with switchg fixed, and repaired. i Read more »

EconoTig pulse controller

rating: 5

I'm considering building a pulser circuit for my EconoTig. The front panel jack provides provides an external access point that can be used to pulse the welder on and off or to alternately switch ... Read more »

HD cylinder head repair?

rating: 5

Wonder if anyone can help with info regarding the best rod to use for tig welded repair of an aluminuim head from a Harley? Seems not to be a normal grade of alloy, and appears pretty difficult to we... Read more »

TIG AntiFreeze/Coolant

rating: 5

My Lincoln TIG is in my garage and I need to come up with a antifreeze/coolant combination that will work well for the Lincoln cooling unit. Anyone have suggestions of what brand or kind of antifreez... Read more »

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