Specialized Equipment & Sizing Utilities

Zero fluff, no-login engineering calculators designed for Field Mechanics, Woodworkers, RVers, Fabricators and DYI Projects.

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🚛 Towing, RV, 4x4 & Marine Sizing

⚡ Power, Water & Agricultural Systems

Backup Power

Standby Generator & Transfer Switch Sizer

Calculate central A/C compressor LRA starting surge, soft-starter mitigation, continuous running kW, and 30A vs. 50A inlet box requirements.

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Homestead Water

Solar Submersible Well Pump & PV Sizer

Compute Total Dynamic Head (TDH), Hazen-Williams pipe friction loss, required GPM flow, DC bus voltage, and solar array wattage footprints.

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Irrigation & Lawn

Lawn Sprinkler Zone Flow & Friction Sizer

Convert bucket tests into usable GPM, calculate pipe friction pressure drop (PSI), check water hammer limits, and size head counts per zone.

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Mobile Lithium Power

Alternator DC-to-DC Charger & LiFePO4 Sizer

Calculate maximum safe alternator thermal charging amps, driving recharge hours for LiFePO4 house banks, and required AWG wire and ANL fuse sizes.

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Ranch & Livestock

Electric Fence Energizer (Joules) & Ground Sizer

Determine required Output Joules for multi-wire perimeters, heavy wet weed loads, livestock coat shock voltage (kV), and 6-ft ground rod counts.

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Farm & Livestock

Barn Ventilation CFM & Intake Louver Sizer

Calculate seasonal livestock ventilation CFM, summer heat abatement ACH, winter moisture exchange, fan package diameters, and intake louver Net Free Area.

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Off-Grid LP Gas

Propane Tank Winter Vaporization & 2-Stage Regulator Sizer

Calculate liquid propane vaporization limits down to -20°F at 20% fill, prevent tankless heater freeze-outs, and size 2-stage regulators and CSST gas lines.

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Solar PV Sizing

Solar MPPT Sub-Zero String Voltage (Voc) Sizer

Calculate cold-temperature Voc voltage spikes down to sub-zero winter extremes, max series panel count per string, and charge controller overvoltage safety margins.

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Hydronics & Heating

Hydronic Radiant Floor Heating & PEX Loop Sizer

Calculate room heat loss BTU/hr, required PEX tubing loop lengths and spacing, manifold circuit counts, and circulation pump flow rate (GPM) and head loss.

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Pond & Aeration

Acreage Pond Aeration & Bottom-Diffuser Sizer

Calculate pond surface acreage, water volume, required CFM airflow by depth, and bottom diffuser plate counts. Size rocking piston air compressors, weighted sinking airline lengths, and friction pressure loss to prevent fish kill.

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⚙️ Fabrication, Machinery & PC Cooling

Hydraulics

Hydraulic Ram Force & Pump GPM Sizer

Size log splitter rams and shop presses: calculate required bore diameter for target tonnage, cycle extension times, and engine shaft HP.

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Woodworking

Cyclone Dust CFM & Static Pressure (SP)

Calculate ACGIH machine port capture CFM, spiral duct friction loss (in. WG), and required cyclone motor impeller horsepower.

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CNC Routing

Desktop CNC Speeds, Feeds & Chip Load

Calculate optimal feed rate (IPM), plunge rate, router dial RPM, depth of cut, and chip load tailored for desktop CNC rigidity limits.

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Custom PC Hardware

Custom PC Water Cooling Radiator & Pump Sizer

Calculate CPU/GPU thermal load (Watts), required copper radiator surface area at a 10°C Delta-T, fan static pressure, and D5 vs. DDC pump head.

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Sauna & Electrical

Sauna Electric Heater kW & Rock Mass Sizer

Calculate Finnish thermal cubic foot adjustments for glass and tile, electric heater kW, rock stone mass, 240V breaker wiring, and bench safety clearance.

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Garage Door Hardware

Garage Door Torsion Spring Wire & Cycle Sizer

Calculate exact garage door torsion spring wire diameter, active coil length, IPPT balance rating, installation quarter-turns, and 10k/25k/50k cycle upgrades.

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Shop Pneumatics

Air Compressor CFM, Tank & Duty Cycle Sizer

Calculate continuous CFM delivery at 90 PSI, 60/80-gallon tank buffer storage, true motor horsepower, and 1-stage vs. 2-stage pump duty ratings.

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Optics & Cinema

Projector Throw Distance & Screen Gain Sizer

Calculate optical lens throw ratio, image width and height, screen brightness in Foot-Lamberts (fL) and nits, minimum ANSI lumens, and ALR screen gain matching.

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🛠️ Trade, Commercial & Equipment Maintenance

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