Issue:

I created a ribbed lattice, but it added extra extrusions that are either flipped, intersecting, or reach beyond the part. How do I get rid of this?

Applies to:

• Lattices

Cause:

This can occur when you use an Implicit body as the Direction of the Ribbed Lattice block. 

Solution:

To fix this, use the field direction of the surface instead of the body. 

If you started from a CAD Body: 

• • Convert just the outer CAD surface into an Implicit Body
  • Use this part as the Direction

If you started from a Mesh or Implicit Body

• • Convert the part to a mesh (if starting from CAD)
  • Use the Filter Mesh by Flood fill block and select the outer surface
  • Convert the outer surface into an Implicit body
  • Use this part as the Direction

More on this topic:

• How to create a conformal lattice from a Quad mesh
• Beta lattice blocks: Unit Cells, Cell Maps, and Lattice Bodies
• How do I create a ribbed lattice perpendicular to the surface?