#A5----------------------------------------------
plane p 0 0 0 1 0 0
pcylinder p p 15 20
profile pf o 5 1 5 l 10 c 2 90 l 5 d -1 0 \
l 14 d 0 -1 l 5 c 2 90
polyline pl 0 0 5 0 0 30
pipe p2 pl pf
bfuse f p p2
nexplode f f
depouille result f 0 0 1 f_5 5 0 0 29 0 0 1

checkprops result -s 3953.7