How to export a mesh and lattice to 3MF format

Objective:

Learn how to set up a part for exporting to 3MF. Once in 3MF, the part can be easily opened in programs like Materialize Magics. The 3MF Export block accepts a mesh of the non-lattice regions of the part, along with the option to add a lattice or a thickened lattice. If a lattice without a thickness is used, the block will automatically apply a 1mm thickness to all beams. Only beam-based lattices are supported for 3MF lattice export, so face-based lattices like hexagonal honeycomb cannot be used.

Applies to:

  • Meshing, Import, Export

Procedure:

Group_753mf.png

In this example, we export a wrench with a lattice infill. Instead of Boolean Unioning the two parts together we keep them as separate types. The 3MF Container will combine them when we export it. We start out with an Implicit body and a thickened lattice. Download the file here to follow along. 

wrench1.jpg

1. Convert Main Body to Mesh format

Convert the main body of your part to a mesh format. Use the Mesh from Implicit Body block and set an appropriate feature size. If your part is more complex, you may need to run further meshing operations to capture all of the details. 

Wrenchmesh.gif

2. Keep the Lattice Format

Usually, when creating your lattice elements, you use a 'Thicken Body' block to convert them to Implicit and Boolean Union them with your part. In this case, keep them in the Lattice format (purple block colors) and use the Thickened Lattice block. If your lattice doesn't have a thickness, a thickness of 1mm is automatically assigned to the lattice at export.  

3. Add 'Export 3MF' block

Insert an Export 3MF block. Drag the Thickened Lattice and the Mesh block into the inputs. Set the units, choose a file path, and your part is exported. 

3mfexport.gif

4. Further Processing

Now that we've exported our part, we can open it up in a program like Materialize Magics. In the current version of Magics 24.1 the graph of the beams is visualized but not the thickness, however when you slice the lattice you will see that the beam thickness is accurately represented in the slices. In order to see the thickened slices, use the 'Official Machine' build space and not the 'Magics Default' build space. 

Supports can be added to both the mesh and the lattice beams in Magics support generation modules and then sent to build processors.

3mfmagics.png

And that’s it! You’ve successfully exported your part using the 3MF file type

Are you still having issues? Contact the support team, and we’ll be happy to help!

Download the Example file:

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Keywords:

 mesh lattice part export 3mf format thickened interop magics materialize mashing 
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