MIG, TIG, MMA, or gas work — describe the fabrication job and get a structured checklist of PPE, filler metals, gas, tools, and safety prep before you strike an arc. No more missing rods or forgotten gas bottles.
Free plan, no card needed. Pro is £24/month, with 5 days to try it.
Ask, work it out, buy it, tick it off — each step hands to the next. No app hopping.
"Balcony balustrade fabrication Thursday, what do I need?" The Gaffer lists the consumables, the gas, the PPE and the bits to check before you leave — material spec, WPS, site access for the sections.
Weight of the steel for the lift and the invoice, heat input for the WPS, the symbol on the drawing read in plain English. Each drops into its own calculator.
Steel, consumables, discs, primer and fixings land on a shopping list with a supplier link on every line.
The fabrication sits on one checklist with the weld procedure. Tick it as you go, send it to the site fitter, invoice on completion.
Free, no account needed. Quantities go straight onto a shopping list.
Steel & Metal Weight
kg/m and total weight for plate, bar, box, tube, angle, beams
kg per metre and total weight for plate, flat, round, box section, tube, angle and UB/UC/PFC — mild, stainless or aluminium — with a cost at your rate per kg.
Welding Heat Input
kJ/mm from amps, volts and travel speed — MMA, MIG, TIG, SAW
kJ/mm from amps, volts and travel speed for MMA, MIG/MAG, flux-cored, TIG or sub-arc, with the BS EN 1011-1 k factor and a check that the amps suit the rod or wire.
Welding Symbol
Build or read a BS EN ISO 2553 weld symbol in plain English
Build a BS EN ISO 2553 symbol from the weld you mean, or read one off a drawing in plain English — side, size, length, pitch, contour, site weld, process.
AI-generated in under 60 seconds from your job description. Every section editable, shareable, downloadable.
30 years of trade know-how in your pocket. Straight answers to on-site problems, specific to the job you describe — and it reminds you of the bits you'd only remember halfway there.
The Gaffer
Your AI site mate
"What gas mix should I use for MIG welding 3mm mild steel?"
For 3mm mild steel on MIG, you want a 75/25 argon/CO2 mix — gives you a clean arc, good penetration, and minimal spatter. Pure CO2 works if you're on a budget but it'll be messier. Run 0.8mm wire at around 18-19V, wire speed 6-7m/min. Make sure you purge the gun before starting — old gas in the line causes porosity.
Always verify to current regs. On-site conditions may vary.
Yes. Describe whether you're doing MIG, TIG, MMA (stick), oxy-fuel, or flux-cored work and the checklist adapts — correct PPE, gas types, filler metals, and equipment for each process.
If your job description mentions site welding, the checklist flags hot works permits, fire extinguisher requirements, and fire watch procedures. Always follow your site's specific permit-to-work system.
Describe the material (mild steel, stainless, aluminium, etc.) and the Gaffer AI will advise on correct gas, filler metal grade, machine settings, and joint prep requirements.