Duplo curved slope
thingiverse
Creating a curved incline for Duplo trains, you can now construct slopes around corners. Utilize Pjotrx's (http://www.thingiverse.com/thing:122268) start and end slope design. The 30° piece and 260mm radius curve replicates the original. I haven't personally tested it, as I only printed one part; however, a potential future addition could be a rack system.
Download Model from thingiverse
With this file you will be able to print Duplo curved slope 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 Duplo curved slope.