- 2. Generate solid elements by shell offset
 
- go to Page 2: ElGen
 - select 
 Solid - select Solid By: Shell_Offset
 - set Thickness=10
 - set Segment=1 (see Figure 2)
 
- select 
 ByPart in the lower panel (gen select panel) - click on the head mesh in the graphics window
 
- click Create (see Figure 3)
 - click Accept
 

- Figure 3
 

- Figure 2