ellipse w1 0 0 0 15 10
mkedge w1 w1 0 pi
polyline w2 -15 0 0 0 -5 0 15 0 0
wire w w1 w2
mkplane w w
prism s w 2 0 10
tscale s 0 0 0 SCALE1
explode s E
blend result s 1*SCALE1 s_5 1*SCALE1 s_7 1*SCALE1 s_9

set square 132307