Welding guides
Parts, troubleshooting, equipment, and life in the trade. Browse by topic or search below.
-
MIG Contact Tip Burnback Troubleshooting: Wire Sticking, Fusing, or Melting Back Into the Tip
MIG contact tip burnback happens when the welding wire melts faster than it is being delivered, then fuses inside the contact tip. The most common causes are wire feed speed too low,…
-
Millermatic 211 Drive Roll Selection Guide
The Millermatic 211 drive-roll decision comes down to wire type first, then wire diameter. For the current Millermatic 211 PRO, Miller lists a Quick Select drive roll with three groove choices: 0.024…
-
Millermatic 211 Wire Feed Troubleshooting: Slipping, Stuttering, Burnback, and Birdnesting
If a Millermatic 211 feeds wire unevenly, slips at the drive rolls, stops feeding during welding, burns back into the contact tip, or birdnests at the feeder, start with the wire path…
-
MIG Birdnesting Causes and Fixes: Wire Feed Jam Diagnosis
MIG birdnesting happens when the feeder pushes wire but the wire cannot move cleanly through the gun, liner, contact tip, or drive-roll path. The wire backs up at the feeder and tangles…
-
Miller Multimatic 220 AC/DC Support Guide: Consumables, Setup, and Common Failure Points
The Miller Multimatic 220 AC/DC is a multi-process inverter welder supporting MIG, Flux-Cored, DC Stick, DC TIG, and AC TIG welding. Its portability and broad process capability make it common in fabrication…
-
Handheld Laser Welder Setup and Safety Checks Before You Buy
A handheld laser welder is not a direct replacement for MIG or TIG unless the shop can control fit-up, shielding gas, laser safety, operator training, and reflective-beam risk. The fastest wrong purchase…
-
Miller Diversion 180 vs Lincoln Square Wave 205: TIG Welder Comparison for AC/DC Aluminum, Steel, and Shop Repair
The Lincoln Square Wave 205 is the stronger choice if you want more TIG output, built-in Stick capability, pulse, AC frequency, and AC balance control. The Miller Diversion 180 is simpler and…
-
Miller Gas Engine Drive Selection Guide: Bobcat 265 vs Trailblazer 330 vs Big Blue 400 Pro
Choose a Miller gas engine drive by the weld process, amperage demand, auxiliary generator load, and jobsite mobility requirement. For most service trucks, farm repair, field stick work, light MIG/flux-core with a…
-
Lincoln Welder Selector: How to Choose the Right Lincoln Machine Before Ordering Parts or Consumables
The fastest way to use a Lincoln welder selector is to start with the job, not the machine name. Confirm the welding process, base metal, input power, wire or electrode size, material…