Modeling fingernails and wrinkles 

Depending on the size and the detail of your print, you may want to add additional details such as fingernails and wrinkles. As with most things in this book, there are many options in Blender. If you were going to print this model in Full Color Sandstone from one of the 3D Printing Service Bureaus, one option is to add that detailing by coloring your model. Adding colors and UV maps will be covered in Chapter 14, Coloring Models with Materials and UV Maps. If you are using a single color printer, you would want to convey those details in the model itself. It is best to save modeling such details for last when you are satisfied with the rest of the work.

Using Inset and Extrude for fingernails

For the fingernail, I want a slight curve inward going down before the fingernail itself emerges. I'm going to do this with a combination of Inset and Extrude.

The steps are as follows:

1. In Edit Mode, make sure there are edges roughly where the fingernail begins and ends...