Using a polygon wheel as a rotating and moving gear

[Anonymous]

Hi, 

I am trying to have a hexagon "wheel" rotate on a grounded surface to move itself along the same grounded surface in order to raise and lower a surface floating above it (it would raise as it's moves onto it's points, and lower when moving on to it's flats). I cannot seem to make anything other than a slider join where the hexagon doesn't rotate, but just slides along the grounded surface. 

Thank you

[chrisplyler]

Yeah... that's going to require a motion study involving a planer joint and a revolve joint and require you to do a lot of math. Good luck.

Any chance you could use a round wheel with a pin that's not centered, and let that pin raise/lower something? In the real world, engineering mechanisms with point contact or edge contact, and with impacts, is not very good practice most of the time. At the very least you would round off the hexagon such that it could actually "roll" a bit instead of tip over and slam, tip over and slam, tip over and slam.