تماشای ویدئو Slider crank mechanism with added double crank 1 از آی-ویدئو
Slider-crank mechanism with added double crank
The slider's stroke length is 4 times of the red crank length.
For details see:
http://meslab.org/mes/threads/16679-Tang-hanh-trinh-con-truot-cua-co-cau-tay-quay-thanh-truyen