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Unread 02-03-2011, 14:48
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Re: Best Lift Design for Logomotion?

Using what's been seen on CD and Youtube...

I think the 2-stage lifts* are working well this year. While slightly on the heavy side, they've been seen working with either bearings, custom linear slides (us), or 80/20 slides. They've varied in width relative to the robot, and in speed based upon how they're driven. They also have the most robustness in how they're driven -- pneumatic cyllinders, winches, and threaded rods have all been posted on CD. IMO, lifts are also easier to hold in position than an arm (unless ballast + window motors are used on the arm).

So for "best" from a performance perspective will be hard to tell (and will not be a dominating factor so long as it works well), even after the competition season. Yet "best" from a hollistic perspective is about dead even, given the variety of designs seen on CD.

*(2 stages that move + 1 base stage, it isn't a box tube within a box tube telescope setup, and the rotary joint for an end effector is on the upper stage)
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