Summary

In this chapter, we covered how to hollow solid and mesh bodies using solid modeling, mesh modeling, and volumetric modeling techniques. We demonstrated the two methods we have for hollowing a solid body. The first method was by selecting one or multiple faces and removing those faces from the solid object in order to create an outer shell of the remaining body. The second method we utilized simply carved out the inside of the solid body. We highlighted how to visualize the impact of hollowing out a solid body by changing the visualization as well as adding a section analysis.

Later in the chapter, we highlighted how to add drain holes to shelled objects to remove trapped powder or resin for 3D printing. We explained how the size and placement of the drain holes, as well as the number of drain holes needed, depend on the 3D printing technology. We demonstrated how to add drain holes for removing uncured resin from stereolithography (SLA) and digital light processing (DLP...