Flow Rate Calculator
Print a single-wall calibration cube, measure the actual wall thickness with calipers, and get the corrected extrusion multiplier for your slicer.
Slicer settings
Line width setting in your slicer — usually equals nozzle diameter
Your current extrusion multiplier / flow setting
Measurement
Measure at 4–5 points around the cube and average them
How to print the test cube: Use a single-perimeter, 0% infill cube (20mm × 20mm, any height). Disable top/bottom layers if possible. Use the same temperature and speed as your normal prints. Let it cool fully before measuring.
Corrected Flow Rate
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%