Normal Bezier surface experiment
thingiverse
While http://www.thingiverse.com/thing:8786 is functional, it doesn't extrude along surface normals. However, this method handles zig-zags correctly and seamlessly joins surfaces when edge and inner control points are collinear. Thanks to WilliamAAdams for making it possible. Check out the improved version at thing:8907 for further advancements.
Download Model from thingiverse
With this file you will be able to print Normal Bezier surface experiment 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 Normal Bezier surface experiment.