Peaucellier-Lipkin linkage - GIF

[Hoosiersmoker]

It looks more like they're transferring a linear motion (no matter how it's achieved) to a perpendicular linear motion. The method here seems to start with an eccentric wheel trapped between two blocks (not exactly a locomotive motion?) to create the horizontal motion then the linkages that follow to create the vertical linear motion. Or am I missing something? The "wheel" actuation is pretty typical, so nothing new there, it's the following pantograph type linkages, with two fixed points running off of a gear and rack, that transfer the first horizontal linear motion to the perpendicular linear motion. This apparently 3d printed version has a lot of play in it that an actual application would not allow.

[Floradawg]

It looks more like they're transferring a linear motion (no matter how it's achieved) to a perpendicular linear motion. The method here seems to start with an eccentric wheel trapped between two blocks (not exactly a locomotive motion?) to create the horizontal motion then the linkages that follow to create the vertical linear motion. Or am I missing something? The "wheel" actuation is pretty typical, so nothing new there, it's the following pantograph type linkages, with two fixed points running off of a gear and rack, that transfer the first horizontal linear motion to the perpendicular linear motion. This apparently 3d printed version has a lot of play in it that an actual application would not allow.

I'm guessing you didn't understand my point. If you want to design something that does a simple thing into something complicated then, Bob's your uncle, there it is. My point was it could be simpler. Also the locomotive idea with an added linkage at the end of the "cylinder rod" sort of L shaped turned cw 90 degrees with a swivel point at the convergence of the two straight parts of the L and another rod at the other end of the L would produce motion up and down, if that is what apparently is vitally important. There are many ways it could be done.