Calculate if your hotend can handle your print speed and settings.
Warning: Required flow exceeds your hotend's maximum! Reduce speed, layer height, or line width.
Flow is within your hotend's limits. You have headroom to increase speed.
Volumetric flow rate is the volume of plastic your hotend must melt and push through the nozzle per second, measured in mm³/s. It's the most important limiting factor for print speed.
Volumetric Flow = Layer Height × Line Width × Print Speed
Every hotend has a maximum volumetric flow rate. If your print settings demand more flow than your hotend can deliver, you'll get under-extrusion, layer adhesion issues, and poor print quality — even if your printer's motion system can move faster.
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