Add a Lattice Support structure

1. Ensure that you have an additive setup with an SLA/DLP or MPBF additive machine selected.

2. On the Manufacture workspace toolbar, click Additive > Supports > Lattice Support .

   The Lattice Support dialog opens.

3. With Supported Model active, on the canvas, click the solid bodies, the faces of solid bodies, or the mesh face groups that you want supported.

   Tip: To prevent supports generating at certain areas, select the Avoid checkbox, ensure Avoided Model is active, and then, on the canvas, click the solid bodies, the faces of solid bodies, or the mesh face groups.

4. Enter a Support Overhang Angle between 0 degrees and 90 degrees to specify the angle from the horizontal plane at which supports are needed.

5. In the General tab, choose an Anchor Density to decide how compact the supports are where they connect to the surface of the part.

   

   Example of Sparse (left), Medium (center), and Dense (right) anchors.

6. Choose a Grow Behavior to control the spread of the supports.

   

   Example of Grow at Adaptive Step (left), Grow at Platform (center), and Constant Shape (right).

7. In the Bar Properties tab, choose options for Bar Size and Bar Shape to specify how thick the supports are and determine the cross-sectional shape of the supports.

   

   Example of Cross (left), Solid Bar and Single Hatch Tube (center left), Solid Cross (center right), and Hatch (right) bar shapes. A Single Hatch Tube is the same shape as a Solid Bar, but the way the Single Hatch Tube is sliced during export is different.

8. Optional steps:

   • To ensure that supports get generated in regions that might otherwise get missed because of the orientation of the body, in the Geometry tab, ensure that the Bars on Parent Component checkbox is selected, then select the Down Oriented Points and Sharp Edges checkboxes as needed.
   • To decide where supports should or should not be generated, in the General tab, in the Bar on Cluster Geometry group, select or deselect the checkboxes as needed.
   • To create support-to-part connections that make the supports easy to break off by hand, in the Connections tab, select the Breakpoint checkbox and choose the Breakpoint Type.
   • To control how the bar supports connect to the build platform, select the Platform Connection checkbox and choose the Type.

   

   Example of Roots (left), Base Plates for Groups (center), and Platform Connection deselected (right).

   • To prevent a thickening of the supports at the build platform, in the Connections tab, deselect the Pad on Platform checkbox.

9. Click OK.

   The supports are generated and, in the Browser, under the Supports node, a Lattice Support child item is added.

   Tip: To reuse these support settings in the future, right-click the child item and choose Store as Template to add it to the Template Library.

If the setup uses an MPBF additive machine, you can now generate, and then simulate, the additive toolpath. Otherwise, export the build file.