This is a post by  Dave Martin on the PTC site.

You might be aware that PTC CAD extensions provide you with functionality that supports 3D printing. These extensions allow you to carry out advanced tasks such as the following:

  • Configure lattice structures in your part models.
  • Automatically position and optimize orientation of parts on the print tray.
  • Nest parts in your print tray assemblies.
  • Save and modify your print tray assemblies

Continue Reading on the PTC site…