Pink bar length: 54
Blue bar length: 100
Green bar length: 100 + 100. Its angle: 80 deg.
Yellow bar length: 160
Orange bar length: 81
Input: pink bar rotating regularly
Output: orange bar oscillating.
1 input revolution makes the output oscillate two times, one fast, one slow.
Green line is locus of center of the revolution joint between green and yellow bars.