Tools

Calculators & reference

The arithmetic behind the settings, done for you. Everything runs locally and updates as you type.

Volumetric flow & maximum speed

Your hot end has a melting ceiling in mm³/s. This tells you the fastest you can print before you are extruding under-melted plastic.

Layer height (mm)

Extrusion width (mm)

Print speed (mm/s)

Hot end max flow (mm³/s)

Stock lined hot end ≈ 11–13 · good all-metal ≈ 18–24 · high-flow ≈ 28–40. Use about 60 % of a manufacturer's headline figure.

Flow required

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Filament cost & usage

Print weight from your slicer (g)

Spool price

Spool weight (g)

Print time (hours)

Electricity (per kWh)

A typical FDM printer with a heated bed averages roughly 120 W.

Material cost

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E-step & flow calibration

Mark the filament 120 mm above the extruder inlet, command 100 mm of extrusion at 100 mm/min, then measure what is left to the mark.

Current E steps/mm

Commanded extrusion (mm)

Measured remaining to the mark (mm)

Starting from a 120 mm mark, a perfect printer leaves 20 mm.

Single-wall test: measured thickness (mm)

Commanded wall width (mm)

New E steps/mm

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Flow multiplier

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Shrinkage & hole fit compensation

Dimension you want (mm)

What the printer produced (mm)

Hole diameter you need (mm)

Fit

Scale factor

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Model the hole at

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How much filament is left?

Spool + filament weight now (g)

Empty spool weight (g)

Printed on most spools. Cardboard 130–180 g, plastic 200–250 g.

Material

Filament diameter (mm)

Filament remaining

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Reference

Filament database

Starting points, not gospel — always check the spec sheet for the specific spool in your hand. Chamber column: "Required" means an enclosure, not a hope.

Material	Nozzle °C	Bed °C	Chamber	Cooling	Drying	Difficulty	Notes