evil mechanisms

[painaz]

I will give you these links:
http://www.europeana.eu/portal/search.html?qf=data_provider:"digital mechanism and gear library - www.dmg-lib.org"&rows=24I arrived by browsing the page of a grabcad user.
https://grabcad.com/inspire-1some mechanisms, in its constructive simplicity, are evil:

here are some examples I did not know (the ruler who makes the additives is really smart):
https://grabcad.com/library/linkage-adding-mechanism-1 while this draws helixes:
https://grabcad.com/library/kleiber-mechanism-for-drawing-ellipses-1

 

[Archimed&]

they forgive me the creators of the forum to answer this ancient post, but I was impressed by the mechanism that makes the sum of numbers. It would be nice to understand the mathematics and the cinema behind it. What a wonder?