+module Demo(){ ////toplevel
+ color("blue") translate([0,0, clamp_top_th+0.5]) Stem();
+ color("red") ClampTop();
+ color("grey") translate([0,0, -(clamp_bot_th + 5)]) ClampBot();
+ translate([0,0, -(clamp_bot_collar +10)])
+ rotate([180,0,0]) Wingnut();
+}
+