Question:

What parameters allow me to vary the cell size of a Voronoi Surface Lattice?

How can I vary the cell to change along the length of my part?

Answer:

To create a Voronoi Surface Lattice, we usually use the block Random Points on Mesh. This block has the input 'Spatial Weighting'. Adding a Ramp to this input will allow you to change the spacing between the points. Changing the spacing then affects the cells of the Voronoi lattice. Check out the image below to see the example. 

More on this topic:

• Modify Geometry with Ramps Walk-through
• Voronoi Lattice Ramping Thickness and Spacing