/PREP7 CYL4,0,0,5, , , ,3 CYL4,3,0,1, , , ,3 CSYS,1 VGEN,8,2, , , ,45, , ,1 ALLSEL,ALL VSEL,U, , , 1 cm,delete,volu ALLSEL,ALL VSBV,1,delete CSYS,0 save,all finish