THE NUMBERS, EXPLAINED
How to use this calculator.
Multiply the current flow factor by target width / measured width. Use a suitable single-wall test and repeat measurements. Adaptive line widths, mechanical errors and imprecise measurements can invalidate this estimate.
Start with your inputs
Enter target wall width (mm), measured wall width (mm), current flow multiplier. Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Target wall width (mm) | 0.45 |
| Measured wall width (mm) | 0.5 |
| Current flow multiplier | 1 |
A worked example
With the example inputs above, proposed flow multiplier is 0.9. Change the inputs to explore your own scenario.
Putting the example numbers into the formula
Proposed flow multiplier
(1) × (0.45) ÷ (0.5) = 0.9
Correction (%)
((0.45) ÷ (0.5)-1) × 100 = -10
| Result | Example answer |
|---|---|
| Proposed flow multiplier | 0.9 |
| Correction (%) | -10 |
How this is calculated
Proposed flow multiplier
c × a ÷ b
Correction (%)
(a ÷ b-1) × 100
Symbols and units
- a
- Target wall width (mm)
- b
- Measured wall width (mm)
- c
- Current flow multiplier
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions and limits
Multiply the current flow factor by target width / measured width. Use a suitable single-wall test and repeat measurements. Adaptive line widths, mechanical errors and imprecise measurements can invalidate this estimate.
Calculations use the values you enter. Blank or invalid inputs show an error instead of silently substituting zero. Results are displayed to useful precision; calculations retain the underlying numeric precision.
Questions about this tool
What does the result tell me?
Proposed flow multiplier; Correction (%). The result applies to the method and inputs described above. Check the units and assumptions before using it in a decision.
Why might another calculator differ?
Differences in units, rounding, timing or model definitions can produce different answers. Compare the input definitions and the method, rather than only the final number. For this tool: Multiply the current flow factor by target width / measured width. Use a suitable single-wall test and repeat measurements. Adaptive line widths, mechanical errors and imprecise measurements can invalidate this estimate.
Are my inputs stored or sent to AI?
Calculations on this page happen in your browser. The separate AI question finder sends its submitted conversation to OpenAI; these calculator fields are not sent. Favourites and recent tool names are stored locally. A shared link contains the inputs you choose to include.
Further reading
Prusa: extrusion multiplier calibration ↗
Background reading; this does not imply endorsement or independent review of SumFizz.
Review status
Software example and browser checks are recorded in our quality report. No external expert review is claimed. Created with coding assistance; calculations run as ordinary browser code.
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