Best Lift Design for Logomotion?

[theprgramerdude]

Originally Posted by Jstack14

Sipmle and sweet! I like it. Do you have pictures or a video?

Sadly, no. However, Duluth is a week two event, so hopefully I can post it by then.

The attached drawing should provide a rough explanation. (Not to scale)

The winch consists of two window motors hooked up to a drum. The main bar going up is made of ~1/8" thick ~1" wide aluminum bar, and the PVC pipe varies around 1" in diameter, and the thickness is pretty beefy, although I doubt it weighs more than 10 pounds max, which is maybe twice that of the bar. A potentiometer allows us set a PID loop to set the arm angle to the correct height every time in under two seconds, although it goes from a full drop to maximum height in about half a second. And yes, we can hit all three levels.

[Paul West]

My team does something quite similar. Our arm uses the same two-window drum at the back, but the arm telescopes 3 feet and the end hook doesn't rotate. It hits all three levels and uses a pot to get to the the correct hight for each peg. The arm is made of a professional steel slider with the telescope powered by a banebots and belt drive. The telescoping piece is 1/8" thick x1" wide angle.

[s_forbes]

Interesting how this has quickly turned into a "my team did this" thread... though I'm not surprised.

After all the work we've gone through, I'm thinking that an elevator type manipulator is the simplest approach to this year's challenge, even with the 60" rule lifted. Not the approach we took, but probably the cleanest.

Even so, it's not the robot with the 'best' lift design that you'll remember... It's the robot with the most unique design. 148 stands out in this category by a mile. But as mentioned above, not many bots have been posted yet.

[Taylor]

Originally Posted by s_forbes

Interesting how this has quickly turned into a "my team did this" thread... though I'm not surprised.

Wasn't that the intent of this thread?

[nuggetsyl]

I will answer the question April 30, 2011