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Scale to Size

PT Nalagareng Resources

Scale to Size

PT Nalagareng Resources

Scale bodies to an exact size in mm or inches. Proportional or single-axis, with optional auto-grounding. The Target Size pre-fills with the current axis dimension so a 5% nudge is one keystroke.

$9.00

Autodesk® Fusion® built-in Scale feature wants a unitless factor. You usually want a target size — "make this 50 mm tall" or "scale this assembly to 18 inches across". Scale to Size lets you type the exact final dimension on the axis you choose, in either millimetres or inches, and computes the factor for you.

It works in both Direct and Parametric design modes.

KEY FEATURES

  • EXACT TARGET DIMENSIONS — pick X, Y, or Z, type the size, click OK. The factor is computed from the current bounding-box span on that axis.
  • PROPORTIONAL OR SINGLE-AXIS — keep the shape's aspect ratio (the default), or untick "Proportional" to scale only the chosen axis and leave the other two alone. Useful for things like "make this 60 mm wide but keep the height".
  • PER-BODY OR WORLD-ORIGIN PIVOT — when you pre-select bodies before opening the dialog, each body scales around its own bounding-box centre so it grows or shrinks in place. Without a pre-selection, everybody in the design is included and scaled around the world origin, with optional automatic grounding so the lowest point lands on Z = 0.
  • LIVE SIZE READOUT — the X / Y / Z dimensions of the current selection are shown inside the dialog and update as you change the selection or unit.
  • SMART TARGET SIZE — pre-filled with the current value of the chosen axis, refreshing live when you switch axis, unit, or selection. A 5% nudge is one keystroke, not a fresh number to type from scratch.
  • MILLIMETRES OR INCHES — side-by-side toggle. Default is mm.
  • OPTIONAL AUTO-GROUND — drops the result so the lowest point sits on Z = 0. On by default for whole-design scales, off by default for manual selections, always overrideable.
  • NATIVE PROGRESS DIALOG — for slow scales (large selections), a Fusion progress dialog appears after about two seconds with per-body progress. Fast scales finish silently.

WHO THIS IS FOR

  • Anyone who has ever opened Fusion's Scale dialog, looked at the unitless factor field, and reached for a calculator. 3D-printer users sizing models to plate, product designers reaching a brief size, and anyone working with imported geometry that "needs to be 200 mm tall".

INSTALLATION

  • After downloading and installing, open Fusion 360. The command appears in the Solid workspace under MODIFY → Scale to Size (in the panel's overflow menu). Right-click the entry and choose "Pin to Toolbar" to keep it visible.

PRIVACY

  • This add-in operates entirely on your local machine. It does not collect, transmit, or store any user data on any server.

LICENCE & SUPPORT

  • Single-user licence — see the bundled LICENSE file. Each copy is licensed to one user. Please direct teammates to the Autodesk App Store rather than sharing your installation.

Published by PT Nalagareng Resources.

How to install

Details

Operating system

win64-platform-icon

Release date

May 29, 2026

Last updated

Jun 2, 2026

Version

1.0.0

Language

English

Compatible with

FSN-icon

FSN

Capabilities

3d printing

General utilities

Frequently asked questions (FAQs)

SYSTEM REQUIREMENTS

Fusion (current). macOS or Windows. No additional Python packages required — the add-in uses only the Fusion Python API.

PRIVACY

This add-in operates entirely on your local machine. It does not collect, transmit, or store any user data on any server. No telemetry, no analytics, no network calls.

DESIGN HISTORY MODES

The add-in works correctly in both Direct (history-off) and Parametric (history-on) modes. In Parametric mode, the scale and any auto-ground move appear as features in the timeline that you can edit or delete after the fact. In Direct mode, changes are baked into the bodies; use Undo if you want to revert.

PER-BODY VS WHOLE-DESIGN BEHAVIOUR

When you pre-select bodies in the viewport before opening the dialog, the add-in treats this as a "manual scope" and scales each body around its own bounding-box center — bodies grow or shrink in place rather than drifting toward the world origin. The Ground checkbox is also off by default in this mode.

Without a pre-selection, everybody in the design is included, the world origin is used as the scale pivot (so distances between parts scale too), and Ground is on by default — useful when scaling an entire assembly to a target build size.

• The Sizes panel and Target Size field reflect the bounding-box span on the chosen axis. If a selection is mostly aligned to one axis (e.g., a flat sketch in the X–Y plane has zero Z height), scaling on the zero-size axis is rejected with a clear message — pick a different axis instead.

SUPPORT

For questions, bug reports, tutorials, and tips & tricks, visit the product page at https://nalagareng.com/scaletosize or email nalagarengresources@gmail.com.

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