circle c1 0 10 0 10
circle c2 0 -9 0 9.1
circle c3 10 10 0 0 10 0 0.05

mkedge e1 c1
mkedge e2 c2
mkedge profile c3

bclearobjects
baddobjects e1 e2
bfillds
bbuild result

explode result e
wire path result_1 result_3 result_4 result_6
wire profile profile

mksweep path
addsweep profile 
buildsweep result -C -R

checkprops result -s 36.5019