This is a solid guide on how to access, download, and set up the MoI3D v5 Beta.

Quick download & install

  • Visit the official MOI3D website and download the v5 beta build from the Beta/Downloads page (look for “v5 beta”).
  • Choose the correct installer for your OS (Windows x64 or macOS).
  • Install normally; the beta installs alongside v4 so you can keep both.
  • MoI v5 requires a valid v4 license. If you have an older v2 or v3 license, you generally need to upgrade to v4 first to access the v5 beta.
  • Ensure your computer clock is set correctly (license files are time-sensitive).

The V5 cycle has introduced several game-changing tools and performance upgrades:

Recommended testing checklist

  • Start-up and shutdown: Verify no crashes and acceptable load times.
  • Basic modeling: Create and edit curves, sweeps, lofts, extrudes, and boolean operations.
  • Fillets and blends: Test various radii on thin features and multiple adjacent edges.
  • Large files: Open a complex model or assembly to monitor memory and responsiveness.
  • Import/export: Round-trip test: export to STEP/IGES/OBJ and re-import to check tolerances and units.
  • Viewport/display: Pan/zoom/rotate, toggle wireframe/ shaded views, test anti-aliasing and tessellation behavior.
  • Scripting: Run simple scripts to create primitives and modify parameters; test callbacks/events if exposed.
  • Keyboard/mouse shortcuts: Confirm common shortcuts still match your workflow.
  • Stability: Leave long-running operations (e.g., large boolean) to check for memory leaks or hangs.
  • Preferences and custom UI: Test saving and loading of preferences, toolbars, and custom shortcuts.

: Refined SubD-to-NURBS conversion tools and better handling of imported geometry Known Technical Notes Moi3D - V5 (beta) - Foundry Community

If you are looking to get the MoI3D v5 Beta up and running, the process is straightforward but requires a valid license from a previous version. How to Access the Download

Issue B: "Fatal Error" when using Booleans

Solution: The new kernel dislikes naked edges. Before performing a Boolean Union/Difference, run Edit > Join and then Edit > Separate to clean the history stack. This is a known V5 Beta quirk.

The MoI3D (Moment of Inspiration) v5 Beta is currently available for download for existing users. Here is how to access it and what to expect from the new version. 🚀 How to Download the v5 Beta