Elsewhere
More tools
These are separate sites, each a reference for a different trade or field. Each description is the site's own.
- GaugePassFree weld symbol, filler metal, discontinuity and welding math reference, plus practice questions and a gauge trainer for welding inspectors.
- CoatSpecCoating inspection calculations and field logging: dew point, SSPC-PA 2 style DFT acceptance, WFT targets, coverage, and a printable daily report.
- EngiRef119 engineering formulas with solvers, 56 materials, 134 unit conversions, constants and reference tables.
- OpticBenchOptical math trainer for opticianry students: Rx transposition, Prentice's rule, vertex compensation, minimum blank size and ANSI tolerance checks.
- IrrigauditRun a catch-can irrigation audit in the browser: distribution uniformity, precipitation rate, cycle-soak programs and a printable client report.
- PressBenchFree print imposition, run planning and estimating for small print shops: sheet layouts, digital vs offset break-even, booklet math and spoilage.
Looking for something on this site instead? The position workspace, the practice questions and the guides are the places most visitors start.