Peaucellier-Lipkin 'rotary to linear' linkage. Take 3 by mgg942

Last crawled date: 3 years, 1 month ago

This is a revision of thing:338923.
I revised the design because when I recently animated the original design in Blender (2.76 using the Physics engine) it was clear that the geometry was a bit 'off'.
Only one part has been changed, so anyone who made the original and wishes to update need only to print the base and re-use all the other parts.
Nonetheless I've posted all the necessary stl files here.
Read about the linkage here: http://en.wikipedia.org/wiki/Peaucellier%E2%80%93Lipkin_linkage
I based my design on the animation.
Made in (mostly Diamond Age) PLA on an Ultimaker 1. Designed in MOI.
Short video at: https://youtu.be/E7zPRr18zBg
Blender animation here: https://www.youtube.com/watch?v=i1RTyFmVfDg
This quote at the bottom of the wiki page is so wonderful it bears repeating in full:
Sylvester (Collected Works, Vol. 3 Paper 2 ) writes that when he showed a model to Kelvin, he 'nursed it as if it had been his own child, and when a motion was made to relieve him of it, replied "No! I have not had nearly enough of it—it is the most beautiful thing I have ever seen in my life"'.