simple gate for indoor micro FPV racer (up to 120mm).  it fits 1.6mm glass fiber rods. an one meter rod will get you a circular gate with 32cm in diameter, which is the curvature of the 3d printed base.  it should be mounted to a standard 60cm traffic cone. 25% infill 0.2mm layers print it with the flat side down and you won't need any supports share it if you print it :)