G04

[Trent B]

With fold down handles you only need one person tall enough to touch the robot and fold them down rather than 2 or 3 to lift it down.

[Chris is me]

Originally Posted by pfreivald

Keep in mind that while the zone three horizontal bar is 90" off the ground, it is possible* for the robot to have made a valid 30-point climb and not violate any height/volume restrictions, and yet the bottom of the robot is still only 6" off the ground at retrieval time.

Uh, no, I'm pretty sure it isn't. If the robot is capable of lowering itself without power to six inches after going higher than sixty, then how does it hold itself at the level for scoring? The only way I can think of this being the case is if you had some kind of mechanical device that took 10 whole seconds to disengage a winch's brake, for example.

To answer the OP - worm gears are not the only way to prevent backdriving. They are actually a pretty bad way to do it, as a worm gear that doesn't backdrive is inherently inefficient.

Also, no one said you have to lower your robot with its mechanism to remove it from the tower. If you have a passive hook, just lift it up an inch to take it off and reset your hanger in the pit.

[engunneer]

I am reasonably certain he meant six feet and used the wrong ". (An easy mistake)

[Chris is me]

Originally Posted by engunneer

I am reasonably certain he meant six feet and used the wrong ". (An easy mistake)

OH, wow, I can't believe I didn't see that as a possibility! Sorry for jumping down your throat there, pfreivald.

[pfreivald]

Actually, I meant 6".

I didn't say it was likely, easy, or something to design for -- but it is *possible* to have a robot that lowers itself slowly enough so that you get the points after five seconds, but it's 6" off the ground by the time that the team gets out to retrieve it.