Peaucellier Linkage
Peaucellier Linkage
credits and sources:
The Peaucellier–Lipkin linkage which draws an exact straight line was
invented by Charles Nicolas Peaucellier (1832-1913) in 1864.
This was the first planar straight line mechanism capable of
transforming rotary motion into perfect straight-line motion, and vice versa.
https://www.youtube.com/watch?v=AuayeQJu1rs
https://www.youtube.com/watch?v=hSdW-i3nO1M