Twister
grabcad
The 3D curve is for the CNC milling: follow that line with a mill with small diameter and you will obtain the details needed for mold.
Download Model from grabcad
With this file you will be able to print Twister 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 Twister.