Filament Shrinkage Calculator

Calculate precise shrinkage percentages for OrcaSlicer & Bambu Studio using the Calibration Cross.

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Instructions

  1. Download and print the calibration model with 100% shrinkage and 0mm XY Compensation.
  2. Allow the print to cool completely to room temperature.
  3. Measure the 8 dimensions shown below using digital calipers.
  4. Enter your values to receive the corrected shrinkage parameters.
  5. The Designed Dimensions below (outer total 200.0mm, hole 10.0mm) are the calibration model's design values — adjust them if you print a different model.
1. Shrinkage (Outer Dim)

Designed: 80mm (A,B) & 20mm (C,D) — see Designed Dimensions below (outer total 200.0mm)

mm
mm
mm
mm
A B C D
2. Compensation (Inner Dim)

Designed Hole: 10mm — see Designed Dimensions below (hole diameter 10.0mm)

mm
mm
mm
mm
E F G H
3. Designed Dimensions

The calibration model's design values — adjust if you print a different model

mm
mm

Designed outer total = A+B+C+D (80+80+20+20 = 200.0mm)
Designed hole diameter = 10.0mm