Measure twice. Slice once.

Print settings

Volumetric Flow Calculator

Find whether a speed target asks your hotend to melt more plastic than it can reliably supply.

Inputs

Set 0 if unknown.

How the calculation works

Volumetric flow = line width × layer height × linear print speed. This rectangular approximation is the common planning formula used for slicer limits.

How to use this result

A published hotend limit is not universal. Polymer, nozzle, temperature, melt zone, extruder grip, and acceptable surface quality all matter. Determine a stable limit with a controlled flow test.

Example

At 0.45 mm width, 0.20 mm height, and 100 mm/s, the requested flow is 9 mm³/s.

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