How do I best prepare a model for a shell expansion drawing?
Before conducting a shell expansion there are a few simple steps you must carry out to ensure the model is correctly prepared: 1) Turn trimming invisible on. 2) Turn off all surfaces that are not hull surfaces. 3) Step through each of the sections in the body plan view and ensure that there is only one unambiguous continuous section (this is the same procedure as setting up a model for hydrostatic calculations in Hydromax). If multiple closed sections occur, or there is a “spike” in the section, Workshop will not know which path to take when calculating the girth at a particular longitudinal section. 4) Make visible only the parts you wish to be included in the shell expansion drawing.
