Automotive
Calculators
The calculators category collects posts built around TestTalkHQ’s free shop math tools—welding settings, electrical sizing, air CFM, material weight, cutting speeds, and job costing. Each article explains when to use the calculator, what inputs matter, and how to sanity-check the result on the floor.
These are companion pieces to the live tools on the site, not duplicate calculators locked in blog form. Start the tool, read the post if you need the why, and apply the numbers to your machine and code environment. Examples include MIG wire feed and voltage guides, TIG amperage for steel and aluminum, voltage drop and wire sizing, compressor CFM for plasma, metal weight and pipe weight, and weld-cost estimates for quoting work.
Posts often link to related reviews when a calculator pairs with a specific machine type. New calculators and walkthroughs land here as they are published; the full index lives on the free calculators hub. Use this category when you want the explanation behind the math, not just the button.
Automotive
Calculators
Sizing Snow Retention: The Vector Force Method, the Row Count, and the Three Numbers a Pitch Chart Cannot See
What the snowbank actually pulls on each attachment, where the published method comes from, why the vendor spacing table answers...
Calculators
When Snow Guards Tear Off, Dent the Panel or Let the Slab Go: Eleven Failures Traced Back Through the Load Chain
Working backwards from what you found on the ground to which link actually gave way - the attachment, the seam,...
Calculators
Pad Guards, Rails or a Snow Fence: Which Retention Style, and How Each One Changes the Arithmetic
Continuous and discontinuous systems compared as a decision rather than a how-to - what each is sized from, how the...
Calculators
Snow Guard Spacing Calculator
Calculators
Loop, Offset, Expansion Joint or Swing Arm: Four Ways to Take Up Copper Movement, and When Each Is the Right One
The four arrangements the Copper Tube Handbook points at, compared on the things that actually decide it — space, joint...
Calculators
Copper Expansion Loops: Working Out the Movement First, Then the Loop That Takes It
A two-stage method straight out of the Copper Tube Handbook — what the run actually moves, what has to be...
Calculators
When a Copper Line Ticks, Bows or Splits a Joint: Twelve Symptoms Traced Back to Movement That Had Nowhere to Go
A diagnostic path that works backwards from what the system is doing to what is blocking the thermal movement —...
Calculators
Copper Pipe Expansion Loop Calculator
Calculators