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Flow Rate and Extrusion Multiplier Calibration

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Fast answer

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Calibrate flow only after the nozzle, filament path, temperature, and first layer are healthy. Use a repeatable test and small adjustments.

CalibrationMedium15 min

Progress

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Step 1

Confirm physical nozzle and slicer nozzle size.

Step 2

Dry the filament and clear any clog.

Step 3

Use a stable temperature and conservative speed.

Step 4

Print the slicer or printer maker’s recommended flow test.

Step 5

Measure multiple locations with appropriate tools.

Step 6

Adjust extrusion multiplier/flow in small increments.

Step 7

Verify with top surface, wall, and dimensional tests.

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