Print Speed Calculator — Maximum Speed from Flow Rate
Calculate maximum print speed based on your extruder volumetric flow rate and layer dimensions.
Height of each printed layer
Width measurement
Hot end max flow rate
How We Calculate This
Formula
- Cross-section = Layer height x Line width (mm2)
- Max speed = Max volumetric flow / Cross-section
- Recommended speed = Max speed x 0.8 (20% safety margin)
The volumetric flow rate is the key constraint. If you push faster than the hot end can melt, you will get under-extrusion.
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates. Always verify settings with test prints before committing to final prints.