#old revolrib11
pcylinder c1 3 5
profile w c 1 310 WW
trotate w 0 0 0 1 0 0 90
ttranslate w -3 0 1
trotate w -3 0 1.5 0 0 1 180
ttranslate w 0 0 3.2
plane pl -3 0 1.5 0 1 0

featrf c1 w pl 0 0 0 0 0 1 1. 1. 1 1
featperform rf result

checkprops result -s 162.62