Hotwheels track
thingiverse
The design isn't suitable for actual commercial tracks, yet kids will have fun playing with it anyway. For creating those curves, support material came in handy. Once printed out, a heat gun softened the support and allowed it to be shaped precisely. Walls may not be quite roomy enough for those tight curves, but the structure still works perfectly well as is.
Download Model from thingiverse
With this file you will be able to print Hotwheels track with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Hotwheels track.