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Calcimator

Tolerance & Fit Calculator

Calculate expected dimensional tolerance, shrinkage compensation, and recommended clearances for 3D printed parts based on printer type and material.

Inputs

mm

Results

Expected Tolerance (±)

0.31 mm

Shrinkage Amount

0.06 mm

Minimum Dimension19.69 mm
Maximum Dimension20.31 mm
Compensated Design Size20.06 mm
Press Fit Clearance0.16 mm
Sliding Fit Clearance0.47 mm
Loose Fit Clearance0.78 mm
Tolerance Class4 (1=best)

Expected Tolerance (±)

0.31 mm

Shrinkage Amount

0.06 mm

How to Use This Calculator
  1. Start by filling in the input fields below. Results update instantly as you type, so you can experiment with different values to see how they affect the outcome.
  2. Printer Type — Type of 3D printer being used. SLA is most precise, FDM is least precise. Choose from: FDM (Fused Deposition), SLA / MSLA (Resin), SLS (Selective Laser Sintering). default: 1.
  3. Material — Print material. Different materials have different shrinkage rates as they cool or cure. Choose from: PLA, ABS, PETG, Nylon, Standard Resin, Tough Resin. default: 1.
  4. Nominal Dimension — The target dimension of the feature you are designing (e.g., hole diameter, peg width). Accepts values from 1 mm to 500 mm (default: 20 mm).
  5. Once all inputs are set, review your results in the Results panel. Here's what each output means:
  6. Expected Tolerance (±) — shown as a numeric value. This is the primary result of this calculator.
  7. Shrinkage Amount — shown as a numeric value. This is the primary result of this calculator.
  8. Minimum Dimension — shown as a numeric value.
  9. Maximum Dimension — shown as a numeric value.
  10. Compensated Design Size — shown as a numeric value.
  11. Press Fit Clearance — shown as a numeric value.
  12. Sliding Fit Clearance — shown as a numeric value.
  13. Loose Fit Clearance — shown as a numeric value.
  14. Tolerance Class — shown as a numeric value.
  15. Explore the related calculators below if you need deeper analysis or want to approach this topic from a different angle.
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