ellipse w1 0 0 0 15 10
mkedge w1 w1 0 pi/2
trotate w1 0 0 0 1 0 0 90
polyline w2 0 0 10 0 0 -10 25 0 -10 15 0 0
wire w w1 w2
mkplane w w
revol s w 0 0 0 0 0 1 270
tscale s 0 0 0 SCALE1
explode s E
mkevol result s
updatevol s_10 0 1*SCALE1 1 2*SCALE1 2 1*SCALE1
buildevol

checkprops result -s 426050