3M Speedglas 100 Series Battery and Lens Guide
The 3M Speedglas 100 series is where Speedglas technology becomes accessible to welders who do not need the full professional spec of the 9100 series. It is a g...
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Expert Welding Gear & Safety Reviews
Detailed specs, testing, and reviews for auto-darkening welding helmets, gloves, FR jackets, respirators, and work benches to keep you safe and precise.
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Troubleshooting & Support
How to solve auto-darkening sensor issues, lens replacements, and battery problems.
3M Speedglas 9100XXi Not Darkening: Troubleshooting Guide
The 3M Speedglas 9100XXi is a premium auto-darkening filter - Natural Color Technology, four sensors, TIG rating down to 1 amp. When it stops darkening, the c...
Read Article →3M Speedglas Battery Replacement: The Right Cell for Every Model
A welding helmet that will not darken is useless and, worse, dangerous, and nine times out of ten the culprit is a flat battery. The good news is that 3M Speedg...
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CNC Plasma Cutter Explained: Air Supply, Amperage and Practical Limits
What a CNC plasma cutter is, how the power source, torch and table work together, and the air supply, amperage and duty cycle that set its real cutting limits.
Read Article →Butt Joint Explained: A Clear Explanation for Shop and Drawing Use
What a butt joint is, how edge preparation controls its strength, and how to read and weld one from a drawing.
Read Article →Best Wire Welder for Home and Shop: Three Picks That Earn Their Keep
The best wire welder is not the most expensive one. It is the one that matches your material thickness, runs the wire you need, and has a duty cycle that survives real work.
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