Hi, I have Two eccentric cams consisting of 100mm dia disks with a shaft hole 15mm off centre. They are 400mm apart & I wish to rotate them together using two pneumatic cylinders each placed on either side of one disk. They are anchored at one end & have a pivot eye at the other. Each cylinder is attached to one disk at 90 degrees apart via the pivot eye. The discs are connected via a timing belt so I only need to drive one disk. Is there a linkage that will overcome the TDC situation so I can acheive a complete revolution by reversing the air flow. I am considering of something like the linkage on steam train wheels.