SummaryI combined the dual extruder traffic cone into a single unit and scaled it to 200%. The base is 80mm by 80mm. I then created a rubber insert for the base made from Ninjaflex to give the traffic cone a nice rubber surface to keep it from sliding so easily. I intend to use several of them to layout a course for the F1 Racer http://www.thingiverse.com/thing:1193309