Elliptical Drawing Jig
thingiverse
This is the jig that I used in my most recent YouTube video where I discuss Heidelberg's Echo and the principal that drives ellipses and parabolas. Tie some string to each of the posts and thread a pen or pencil through. https://www.youtube.com/watch?v=Xwmy4Tlc-5k
Download Model from thingiverse
With this file you will be able to print Elliptical Drawing Jig 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 Elliptical Drawing Jig.