Scissor mechanism 1b

Input: orange crank driven by green cylinder.
Output: red slider moving along a circular runway.
Small displacement of pink piston makes the red slider move long way.
Centers of the scissor middle joints almost follow the ruwnay thanks to asymmetric links. However the red slider can not move more than half of the runway circle.
STEP files of this video:
http://www.mediafire.com/download/ai6o4a57k5fu3mb/Scissor1bSTEP.zip

Видео Scissor mechanism 1b канала thang010146