Learn how to create a custom lattice unit cell.
To create a Custom Unit Cell, you insert a Body and define the domain with a Bounding Box. The Unit Cell Domain defines the boundary of the Unit Cell and its spatial information within that boundary.
1. Unit Cell Domain
Let's take a closer look at the Unit Cell Domain before looking at the Body. One method for defining the domain is to use the Bounding Box Chip which is a Property of the Implicit Body. This Bounding Box already matches the boundary of the Implicit and will create an exact fit for the Unit Cell.
Another method is to define the Bounding Box separately by using the Bounding Box block. In the example below, the implicit is floating in the Unit Cell and is cut off by the Bounding Box. The space below it will be a part of the Unit Cell.
2. Unit Cell Body
The Body input can be any Implicit Body or Lattice Type. It can be created in nTop using the primitive implicit shapes, or imported and then converted into an Implicit Body. When creating your custom unit cell, it is ideal to have it be of equal size in x,y, and z directions to be easily scalable.
Tip: If you want to create a honeycomb unit cell you can import a thin CAD surface. When you convert it to an implicit, you will need to use the Thicken Body block to give it some thickness. Adding the thickness allows you to insert it into the Body input of the Custom Unit Cell.
Are you still having issues? Contact the support team, and we’ll be happy to help!
Download the Example file:
- Custom Honeycomb Unit Cell: Download Here
- Custom Primitive Implicit Unit Cell: Download Here
- Custom Voronoi Lattice Unit Cell: Download Here