- 15. Clean up the model
 
- go to Page 1: SelPar
 - select “1 head (shells)” and “S 5” only from the list
 - click Right render button
 
- go to Page 5: PartD
 - click All (see Figure 25)
 - click Del
 
- go to Page 1: SelPar
 - click All
 - click Acen render button (see Figure 26)
 

- Figure 26
 

- Figure 25