THE NUMBERS, EXPLAINED
How to use this calculator.
Uniform isotropic linear shrinkage measured from your process. This predicts dimensions only; it gives no process settings or casting instructions.
Start with your inputs
Enter wax master dimensions (mm), measured linear process shrinkage (%). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Wax master dimensions (mm) | 10,20,30 |
| Measured linear process shrinkage (%) | 5 |
A worked example
With the example inputs above, expected cast dimensions (mm) is 9.5, 19, 28.5. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Expected cast dimensions (mm) | 9.5, 19, 28.5 |
| Master enlargement factor for a target size | 1.052632 |
How this is calculated
Expected cast dimensions (mm)
Reduce each master dimension by the measured shrinkage fraction.
Master enlargement factor for a target size
Invert the retained linear fraction.
Symbols and units
- a
- Wax master dimensions (mm)
- b
- Measured linear process shrinkage (%)
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
Uniform isotropic linear shrinkage measured from your process. This predicts dimensions only; it gives no process settings or casting instructions.
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?
Expected cast dimensions (mm); Master enlargement factor for a target size. 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: Uniform isotropic linear shrinkage measured from your process. This predicts dimensions only; it gives no process settings or casting instructions.
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
OpenStax Prealgebra 2e — arithmetic and proportions ↗
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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