Scale a 3D model to a target size

Scale a model to a target axis size and preview proportional volume change.

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ToolModel Scaler
Input
Output
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Preview

How it works

The scale factor is target size divided by current size on the selected axis. Uniform mode multiplies the other dimensions and volume by the combined factors; non-uniform mode changes only the selected axis.

  • Uniform scaling preserves proportions by default.
  • Axis and target remain explicit for bed-fit planning.

Worked example

Stretch a 100x50x30 part to 150mm wide
Input
											Current xmm: 100
Current ymm: 50
Current zmm: 30
Axis: x
Target mm: 150
Output
												Scale factor: 1.5
New xmm: 150
New ymm: 75
New zmm: 45
Volume before cm3: 150
Volume after cm3: 506.25
Volume change percent: 237.5

When to use this

Build-plate fitting, miniature resizing, and proportional-versus-stretched design reviews scale models.

Edge cases

  • Doubling every axis increases volume eightfold.
  • A zero current dimension makes the scale undefined.
  • Non-uniform scaling can distort holes and clearances.