include Sphere8.foocad class ReactionBall : Sphere8 { @Custom var ballName = "ReactionBall_1" val stlBall = STLParser().parseFile( "reactionBalls/${ballName}.stl" ).center() override fun ball() : Shape3d { return stlBall.scale( diameter / stlBall.size.x ) } override fun build() = stlBall }