What is volumetric flow rate?
Volumetric flow rate is the volume of filament extruded per second (mm³/s). Key limit for print speed. Typically 10-25 mm³/s.
Why it's a limit
The nozzle must melt filament fast enough. Volumetric flow = actual hotend capacity.
Typical values
- Standard hotend: 8-12 mm³/s
- V6 / Volcano: 15-20 mm³/s
- High-flow hotend: 25-40 mm³/s
- Bambu Lab X1: 30+ mm³/s
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