by shouwang·Workflow
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Stands out in the superhive library as a single-format bridge focused on ACIS SAT, and it is honest about its scope: conversion produces a polygon-mesh approximation rather than preserving CAD-kernel topology.
Super3D Import & Export .Sat brings ACIS SAT (.sat) files into Blender and writes them back out. The .sat format is the text serialization of ACIS, the modeling kernel by Spatial and Dassault, and the solid-model format behind AutoCAD 3D, BricsCAD, ZWCAD and other specialty CAD tools. The add-on registers dedicated File menu entries for import and export.
On import, you pick a .sat file from File → Import; the add-on uploads it to the Super3D conversion service, then downloads the result and merges it into your active scene. Solid bodies are tessellated to clean polygon mesh, and assembly hierarchy carries through where the SAT holds it. On export, the scene goes out as OBJ, which Super3D converts to a .sat container and saves to disk. Conversion runs in the cloud, so no local ACIS install is needed.
Some limits are worth knowing: surfaces become mesh, so the underlying ACIS topology is not preserved, and PMI or GD&T data are not part of SAT. Exported output is a polygon-mesh ACIS, suited to visualization but weak as a true CAD-kernel handoff. It is GPL-licensed and tested on Blender 4.2 to 5.1.
Super3D Import & Export .Sat is best for cAD and engineering pipelines that need to bring .sat solids into Blender for visualization, render ACIS-based assemblies, or write meshes back out as polygon SAT.
Super3D Import & Export .Sat is completely free to download and use.
Super3D Import & Export .Sat is tested on Blender 4.2 through 5.1, and its legacy bl_info entry covers Blender 4.0 and up. It ships as a focused add-on with GPL licensing, adding dedicated File menu entries for both import and export. Because the actual conversion runs through the Super3D cloud service rather than inside Blender, the add-on itself stays lightweight. For the latest confirmed compatibility, check the developer's page before installing on a newer or older build.
Super3D Import & Export .Sat does not require any ACIS or Spatial software on your machine. Conversion runs in the cloud through the Super3D service, so you only need Blender and an internet connection. On import, the add-on uploads your .sat file and downloads the converted result into the active scene; on export, it sends the scene out and receives a .sat file back. This keeps Blender lightweight and removes the need for a local CAD kernel.
Super3D Import & Export .Sat produces a polygon-mesh approximation, not a true solid model, so its output is not suitable for re-engineering. On import, surfaces become mesh and the underlying ACIS topology is not preserved, and PMI or GD&T data are not carried by SAT at all. The exported .sat is a polygon-mesh ACIS container that works well for visualization but is weak as a CAD-kernel handoff. To keep topology, retain the original .sat or use STEP instead.
Super3D Import & Export .Sat can run alongside the other Super3D format add-ons without conflicts. Each format ships as a separate extension with its own ID and operator names, so installing several together will not clash. This add-on covers the ACIS SAT (.sat) format specifically. If you want every supported format in a single package, the developer also offers the Super3D Extra Format Bridge as an alternative bundle to grab instead.
Super3D Import & Export .Sat is listed as free here in the catalog. Licensing and any pricing can change over time, so check the developer's page for the current terms before you download. The add-on is distributed under GPL licensing as a focused, single-format extension for the ACIS SAT format. Note that, per the developer, a portion of each order is donated to the Blender Foundation to support its continued open-source development.
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