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Stepmac

by Theeko74·Workflow

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Why we like it

Stepmac earns its place in the Superhive library as a macOS-focused STEP importer for Blender, with builds for both Intel and Apple Silicon and support back to Blender 4.1.

What is Stepmac?

Stepmac is a Blender add-on built for macOS that imports STEP files. It reads *.STEP and *.STP files and produces a mesh based on triangulation of the underlying surface, keeping the components of the object as it imports the geometry.

Compatible builds cover both Intel and Apple Silicon Macs (M1, M2, M3). The add-on has been tested with macOS Tahoe 26.5.1 and Blender 5.1, and it also works with older macOS versions and Blender 4.1 or newer. It is distributed under the GPL license, and documentation is included to help you get started. A demo video is available on the developer's page.

The current release, v1.1.0, fixes tree collection import. Stepmac sits in the Superhive library as a focused STEP importer for Blender users on macOS.

Who is Stepmac best for?

Stepmac is best for blender users on macOS who need to import STEP geometry into their scenes.

How much does Stepmac cost?

Stepmac is completely free to download and use.

Key features

  • Imports *.STEP and *.STP files into Blender
  • Produces a mesh based on triangulation of the underlying surface
  • Keeps the components of the object during import
  • Compatible builds for Intel and Apple Silicon Macs (M1, M2, M3)
  • macOS-only add-on distributed under the GPL license
  • Documentation included

Tags

#STEP import#CAD#macOS#Blender add-on#mesh conversion#3D importer#Apple Silicon

Frequently asked questions

Does Stepmac work on Windows or Linux?

Stepmac is built for macOS only, so it does not run on Windows or Linux. It ships with compatible builds for both Intel Macs and Apple Silicon chips (M1, M2, M3), and it has been tested with macOS Tahoe 26.5.1. It also works with older macOS versions. If your machine runs macOS on either processor family, the add-on has a matching build; for other operating systems you would need a different STEP importer.

What Blender versions does Stepmac support?

Stepmac supports Blender 4.1 or newer and has been tested with Blender 5.1. The listing also records compatibility going back through earlier releases, including 4.0, 3.6 and older versions down to 2.8, and it is marked as Blender Extension compatible. If you are on a recent Blender build or an older one within that range, the add-on is set up to load; checking the developer's page confirms the exact builds supported.

Does Stepmac run on Apple Silicon Macs?

Stepmac provides compatible builds for both Intel processors and Apple Silicon chips, covering M1, M2 and M3 Macs. This means the add-on has a build for current Apple Silicon machines as well as older Intel-based ones. It has been tested with macOS Tahoe 26.5.1 and Blender 5.1, and it remains compatible with older macOS versions. Whichever Mac processor you use, there is a matching build available for it.

Is Stepmac free to use?

Stepmac is listed as free in this catalog, so you can add it without a purchase here. The add-on is distributed under the GPL license, which carries the usual open-source permissions that come with it. For current licensing terms and any pricing on the developer's own store, check the developer's page directly, since those details can change over time and the developer's page holds the latest information.

What file formats does Stepmac import?

Stepmac imports STEP files, reading both *.STEP and *.STP file extensions into Blender. During import it produces a mesh based on triangulation of the underlying surface, and it keeps the components of the object. The current version, v1.1.0, includes a fix for tree collection import. If your workflow involves moving STEP geometry into Blender, this is the format the add-on is built to handle on macOS.

Alternatives to Stepmac

Also in Workflow for Blender.

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