TestTalkHQ • Interactive Tools Hub
Generators and builders that produce printable PDFs, G-code, CSV, JSON drafts, and AWS weld symbols — separate from the calculator hubs that return numbers and sizing.
Use these when you need a file you can print, load into a controller, or save for later — not just a calculated number. Calculators live on the category hubs; this page is for export-oriented builders and editors.
Structural Fab · PDF + CSV — first structural-fab tool
TestTalkHQ's first structural-fab tool. Check an AISC W-shape for bending stress and deflection, or auto-select the lightest passing shape — PDF calc sheet and CSV. Preliminary/educational only; PE required for any load-bearing use.
Open Steel Beam Calculator ->HVAC · Temperature split
Cooling drop or heating rise from return and supply dry-bulb, with an expected band shifted for outdoor humidity and temperature. High split usually means low airflow; low split usually means charge or coil.
Open Delta-T Calculator ->HVAC · Charge diagnostic
Fixed-orifice superheat or TXV subcooling from suction/liquid line temperature, gauge pressure, and refrigerant. Flags readings outside the target band as possible overcharge, undercharge, or airflow.
Open Superheat / Subcooling Calculator ->HVAC · Anemometer CFM
Convert a multi-point anemometer traverse (FPM) to CFM using inside round or rectangular area. Average the grid — do not use a single center-point reading.
Open Duct CFM Calculator ->HVAC · Static pressure
Total external static from supply and return manometer readings vs the furnace/air-handler rated ESP — restriction check, not a CFM traverse.
Open ESP Calculator ->HVAC · PDF + CSV — first HVAC tool
TestTalkHQ's first HVAC tool. Size round or rectangular sheet-metal duct from known CFM and friction rate with the equal-friction method — velocity check, PDF result card, reference table, and CSV. Not a Manual J/D load calc.
Open Duct Sizing Calculator ->Fabrication · PDF + CSV + DXF
Estimate laser, plasma, or waterjet cut time and cost from a manual cut length or a client-side DXF upload with preview. Export a one-page PDF estimate and CSV breakdown — then hand the number to the Weld Quote Builder for a full client quote.
Open Cut-Cost Estimator ->Templates · PDF
Develop full cones, frustum/transition blanks, and lobster-back elbow gores into printable flat patterns. Export a full-scale tiled PDF with tape/overlap marks and a reference square for print verification — add your own seam allowance for lock seam, weld, rivet, or solder.
Open Flat-Pattern Generator ->Need a simple 2-piece pipe miter instead? Use the lightweight Pipe Miter Template entry — same generator, Lobster-Back mode with segments = 2.
Templates · DXF + PDF
Develop square, rectangular, or offset-to-round transitions by triangulation. Preview the flat pattern and plan view, then export DXF for the cutter and a tiled full-scale PDF for the bench — sibling to the Cone / Transition generator.
Open Square-to-Round Generator ->Fabrication · PDF + DXF + CSV + JSON
Chain multiple press-brake bends into one complete flat blank. Choose outside/mold-line or inside/flat-leg dimensioning, then export a printable PDF with a reference square, a DXF outline, a CSV breakdown, or a JSON save file. Neutral-axis K-factor model.
Open Flat-Pattern Unfolder ->Templates · PDF + CSV
Builds true cylinder–cylinder coping templates for branch-to-run tube joints at any angle. Export a printable actual-scale PDF with a reference square for print verification, plus an optional CSV of wrap offsets for layout checks. G-code is not applicable — this tool exports PDF and CSV only.
Open Tube Notch ->Patterns · PDF + G-code + CSV
Lay out bolt circles and custom hole patterns with diameter, count, start angle, and plate size controls. Export a printable PDF template for mark-out, G-code for CNC drilling or plasma, and CSV coordinates for spreadsheets or CAM import.
Open Bolt Circle ->Procedure · PDF + JSON
Fill Welding Procedure Specification fields section by section and export a printable WPS template PDF for shop documentation. Save and reload drafts as JSON so you can iterate without retyping every joint, process, and technique field.
Open WPS Builder ->Qualification · PDF + JSON
Document a welder performance qualification test — welder identity, WPS referenced, process, coupon, positions, and pass/fail results — then export a formatted WPQ test record PDF. Save and reload drafts as JSON, or load a WPS Builder export to pre-fill the reference section. Template only; it does not certify a welder.
Open WPQ Builder ->Stock · PDF + CSV
Pack pieces onto metal bar, tube, or lumber with kerf accounted for — remnants first, then standard stock. Export a printable bar-by-bar PDF cut list and a CSV layout. Applies to woodworking as well as metal fabrication; uses Best-Fit Decreasing (heuristic, not guaranteed optimal).
Open Cut List Optimizer ->DXF · Measure + Cleanup
Pan, zoom, measure, toggle layers, delete stray lines, and export a clean DXF — nothing uploaded. Sanity-check pierce count and cut length before nesting or quoting.
Open DXF Viewer ->Sheet · PDF + DXF + CSV
Nest rectangles, circles, and DXF/concave parts on sheet metal and plate with kerf gaps — true-shape nesting into negative space, multi-sheet overflow, drag-and-drop tweaks, and PDF/DXF/CSV export. The 2D companion to the 1D Cut List Optimizer.
Open 2D Sheet Nesting Optimizer ->Electrical · PDF + CSV + JSON
Build a full NEMA odd/even panel circuit directory with multi-pole spanning and a raw connected-load tally. Export a printable PDF directory, CSV spreadsheet, or JSON save file so you can resume the schedule later. This is a circuit directory tool — not an NEC demand-factor load calculation.
Open Panel Schedule Builder ->Electrical · PDF + CSV
Compute mark positions for offset, 3-point saddle, rolling offset, and segmented 90° conduit bends. Big on-screen numbers for phone use at the bender, plus printable cheat sheet PDF, multiplier reference card PDF, and CSV mark distances.
Open Layout Generator ->Fabrication · PDF + CSV + JSON
Turn line-item shop costs into a clean, client-ready welding quote with shop and client blocks, categorized line items, discount-before-tax totals, and terms. Export a printable PDF quote, CSV spreadsheet, or JSON save file so you can resume drafts later. Cost the job first with the Weld Cost Calculator, then build the document you send the customer.
Open Weld Quote Builder ->CNC · G-code / .tap
Open, edit, and re-save G-code in the browser for quick feed, speed, and coordinate tweaks without a full CAM seat. Export a .tap / G-code file ready to drop onto a controller USB or post into your machine’s load path. Stuck? See TAP File Editor Troubleshooting or the edit/nest guide.
Open TAP Editor ->Symbols · AWS A2.4
Compose fillet, groove, and related weld symbols to AWS A2.4 layout conventions with arrow side, other side, and tail notes. Export the finished symbol graphic for prints, WPS attachments, and drawing callouts without fighting CAD symbol libraries.
Open Weld Symbol ->Calculators return sizes, settings, and estimates. These tools produce files you print, load on a machine, or save as drafts.
No. Tube notch exports printable PDF templates and optional CSV offsets only — use the bolt-circle generator when you need G-code.
Start at Free Calculators & Tools, then open the welding, electrical, air compressor, or shop safety hub for your trade.