R/C car track curbs

thingiverse

Build your own track curbs by using simple floor cord protectors and some self-printed caps. See images for details. Your cord protectors should have the same measurements as shown, or you'll need to resize the end caps. The screws fit best within the displayed cord protectors! Finally, apply some pieces of Velcro (the side with the hooks) to the flat side of your cord protector, so you can easily mount the curbs to your R/C car floor. Update: Because of the large force a 2m lever may have (longest cord protector has 2m), the first version of junctions are sometimes broken. So I made an enhanced version V2, using two aluminum bolts that press into narrow holes in junction A. The opposite junction has the same hole slightly more open, so it fits loosely. See images for more details.