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Decision Tools

The calculators, decision guides, and the decision engine engineers reach for before they source — formula-grade shop-floor math, category decision rules and failure modes, and the plain-language search that recommends a machine type, ranks supplier fit, and flags the risks.

The decision engine & guides

Describe the job in plain language for a machine-type recommendation, per-product supplier fit, risks and sources — or read the decision rules by category.

AIIntelligent Searchplain-language decision engine→ EGEngineering Decision Guides26 categories · sourced, confidence-rated rules→

Machining & shop-floor calculators

Fast, free shop-floor math — 15 calculators, no signup, running right in your browser.

FSFeeds & Speedsspindle RPM · feed · SFM→TDTap Drill Sizeinch UNC/UNF · metric ISO→MRMaterial Removal RateMRR · cycle time→TMTurning / Milling Powerspindle power · force→TBTool Holder Balancebalance grade · RPM→WCWorkholding Clamping Forceclamp force · safety→GPGrinding Parametersspecific MRR · burn→BSBand Saw Speed & Cut TimeSFM · cut time→WEWire EDM Cut Timepasses · cut time→LCLaser / Waterjet Cut Timecut time · cost→PBPress Brake Tonnagetonnage · bend→BABend Allowance / Flat Patternbend allowance · flat→PFPunch / Blank / Shear Forcepunch · shear force→TOTakt Time & OEEtakt · OEE→CMCoolant Mixingratio · top-up→

Optocouplers & isolation calculators

Five calculators built on manufacturer datasheets, each with a Custom mode for any maker’s part. Compare optocoupler suppliers →

GDGate Driver Powerdriver dissipation · supply & UVLO checks→CTLED Resistor & CTR MarginLED resistor · worst-case CTR→IAIsolation Amp Shuntshunt size · error budget→VTVoltage Threshold Resistorswitch-on voltage · DC or AC→CICMTI & Insulation Checkdv/dt · VIORM · creepage→

Power supply calculators

Five calculators built on manufacturer datasheets, each with a Custom mode for any maker’s supply. Compare power supply suppliers →

SZSizing & Deratingambient derating · peak load · AC input→HUHold-Up Timeride-through · bulk capacitance→DCDC-DC Input & Cablelow-bus current · cable drop→PGProgrammable Range & Senselead drop · parallel / series→THHeat & Coolingheat load · fan CFM · sealed box→

All 25 calculators and 26 decision guides run right here on the main site — free, no signup, no members login. Browse all 26 decision guides →

Decide first, source last

Not sure where to start? Ask the engine.

Describe your job in plain language and get a recommendation, ranked supplier fit, and the risks to watch.

Open Intelligent Search →