#D6----------------------------------------------
plane p 0 0 0 0 0 1 -1 0 0
psphere p p 20 0 90
profile pr o 2 0 5  p 0 -1 0 1 0 0 l 10 t 0 30 \
t -7 0  
revol pr pr 0 0 0 0 0 1 360
bfuse f p pr
nexplode f f
depouille result f 0 0 1 f_5 -10 0 0 35 0 0 1

checkprops result -s 5966.54