Worked Example
0.4mm Nozzle Volumetric Flow Example
Calculate volumetric flow for a 0.4mm nozzle, 0.2mm layer height, and 80 mm/s print speed.
Open Volumetric Flow CalculatorWhat This Example Shows
Volumetric flow combines line width, layer height, and speed into one hotend-demand number. A 0.4 mm line at 0.2 mm layer height and 80 mm/s needs 6.4 cubic millimeters of plastic per second.
This example is deliberately conservative because many stock hotends can handle it. If you double the speed or layer height, demand rises quickly, so use the calculator again before assuming the hotend can keep up.
Inputs
| Nozzle diameter | 0.4 mm |
|---|---|
| Layer height | 0.2 mm |
| Print speed | 80 mm/s |
Outputs
| Volumetric flow | 6.4 mm³/s |
|---|
Formula Explanation
Volumetric flow = 0.4 × 0.2 × 80.
Use This Example When
- You want to check whether a common 0.4 mm nozzle setting is within a typical hotend range.
- You are comparing speed changes without changing the model or material.
- You need a simple example before using the nozzle speed calculator backward.
Before You Use the Number
- Nozzle diameter is only a proxy for line width; use the slicer line width when it differs.
- Cooling, acceleration, extrusion temperature, and the hotend's real tested limit are not included.
Assumptions
- Nozzle diameter is used as a line-width proxy.
- Hotend limit, cooling, and acceleration are not included.
FAQ
Does this example use live prices?
No. The example uses fixed sample inputs. Replace them with your own rates.
Can I run the calculator with my own values?
Yes. Open the Volumetric Flow Calculator and enter your own assumptions.