Ideas on how to do something...

[champ2010]

seems how i dont have any idea on what a worm gear is,
what i was thinking was to attach the "fork" to a fixed chain on the robot. so the chain does not move. the chain would go down to the floor and up to the top of the robot. but once it got to the top it would turn backwards toward the center of the robot, and level out at 90 degrees. on the "fork" would be a motor that moves the "fork" up and down.
i dont know its just a thought