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-   -   Vertical Pipe Hanging (http://www.chiefdelphi.com/forums/showthread.php?t=84595)

ducttape477 24-03-2010 20:32

Re: Vertical Pipe Hanging
 
1633 can also climb the vertical pole.

jblay 24-03-2010 20:53

Re: Vertical Pipe Hanging
 
58, 973 (i recall them having basically the same thing as 254)

littlek050844 24-03-2010 22:16

Re: Vertical Pipe Hanging
 
This has been on my mind latley and i guess this is the right thread for it. How long does it take for your vertical hangers to get all the way up?
1718 takes a little less than 7 seconds

Aren_Hill 24-03-2010 22:38

Re: Vertical Pipe Hanging
 
after latch on? or latch on and lift total
after latch on we're about .01 seconds :p
and latch on is just slamming the arm into the bar pretty much

Chris is me 24-03-2010 22:48

Re: Vertical Pipe Hanging
 
Quote:

Originally Posted by littlek050844 (Post 942881)
This has been on my mind latley and i guess this is the right thread for it. How long does it take for your vertical hangers to get all the way up?
1718 takes a little less than 7 seconds

5 second pull up, but I don't know if the motor was running full speed or not.

Huskie65 24-03-2010 22:52

Re: Vertical Pipe Hanging
 
Quote:

Originally Posted by BJC (Post 942619)
Now the next goal.

Suspending from a robot on the vertical bar.
Now that would be impressive:ahh:

I know that 33 is capable of holding up another robot without breaking, but is going for more of a quick hang at the very end. Anyone else able to withstand that kind of forces well hanging or have considered it?

Maybe thier robot can take it but can the goal? It might snap that bar right in half!

EricH 24-03-2010 23:12

Re: Vertical Pipe Hanging
 
Quote:

Originally Posted by Huskie65 (Post 942903)
Maybe thier robot can take it but can the goal? It might snap that bar right in half!

I'm guessing the GDC planned for that when their field designers went to work on the tower. I doubt that that bar is going to fail under 2 robots hanging off the same points. MAYBE 3, assuming one of them has very, very sharp saw-toothed hooks and swings a bit to saw into the bar a bit.

JABot67 24-03-2010 23:31

Re: Vertical Pipe Hanging
 
Quote:

Originally Posted by EricH (Post 942917)
I'm guessing the GDC planned for that when their field designers went to work on the tower. I doubt that that bar is going to fail under 2 robots hanging off the same points. MAYBE 3, assuming one of them has very, very sharp saw-toothed hooks and swings a bit to saw into the bar a bit.

In one match at Wayne State, team 27's robot grabbed onto the bar incorrectly and when it tried to hang, it indented the bar so much that it had to be replaced by one from the practice field. :eek: So ONE robot has caused the bar to fail, and 27 doesn't even have an active grabbing mechanism on its end effector - it simply snaps on.

BJC 25-03-2010 09:07

Re: Vertical Pipe Hanging
 
Quote:

Originally Posted by JABot67 (Post 942929)
In one match at Wayne State, team 27's robot grabbed onto the bar incorrectly and when it tried to hang, it indented the bar so much that it had to be replaced by one from the practice field. :eek: So ONE robot has caused the bar to fail, and 27 doesn't even have an active grabbing mechanism on its end effector - it simply snaps on.

Team 27 also has about 2 inches of their robot actully touching contacting the bar while lifting. 33 has closer to 8 this = much less chance of denting the pole. However, even then it still might be a problem, but I don't quite understand what you mean by grabbing the the bar wrong. On our robot its either on or not on in which case it won't lift us and we'll have to re-clamp.

johnr 25-03-2010 09:44

Re: Vertical Pipe Hanging
 
If 27 did as you said, were there any repercussions? A warning perhaps or even a penalty?

Linguine 25-03-2010 13:10

Re: Vertical Pipe Hanging
 
Team 148 was still a monster competitor this year, even without the hanging mech. A definite congrats to them on 1st at Lone Star.

Josh Fox 25-03-2010 15:04

Re: Vertical Pipe Hanging
 
Quote:

Originally Posted by JABot67 (Post 942929)
In one match at Wayne State, team 27's robot grabbed onto the bar incorrectly and when it tried to hang, it indented the bar so much that it had to be replaced by one from the practice field. :eek: So ONE robot has caused the bar to fail, and 27 doesn't even have an active grabbing mechanism on its end effector - it simply snaps on.

The reason we latched onto the pole "incorrectly" is because there was some deformation to begin with. After reviewing the video of the match, there is a noticeable "dent" in the pipe before we even touch it, thus leaving the pipe not true to its diameter, making it impossible for our latching mechanism to fully click on.

That being said, we did leave 2 smaller indents in the pipe where the "fingers" of our grabber were pushed in with an amount of point loading that they and the pipe would not see under normal operating conditions of our grabber.

So yes, we did mark the pipe, but the damage that caused the pipe to be replaced wasn't necessarily all our fault.


Quote:

Originally Posted by johnr (Post 943036)
If 27 did as you said, were there any repercussions? A warning perhaps or even a penalty?

John, we were not given a penalty, but since the damage to the pipe was brought to the attention of those managing the field right after our attempted hang, we were given a warning that if it was discovered we damaged the pipe from that point on that we would have to modify our mechanism as per the rules regarding field damage.

I can tell you that Team RUSH never left a mark on the pipe Saturday, which myself and my fellow drive team members inspected after each round.

Bjenks548 25-03-2010 18:37

Re: Vertical Pipe Hanging
 
There should be another robot to add to this list after States...

Enigma's puzzle 25-03-2010 23:20

Re: Vertical Pipe Hanging
 
Quote:

Originally Posted by Bjenks548 (Post 943204)
There should be another robot to add to this list after States...

And hopefully one in time for state... don't look at me

Jonathan Norris 25-03-2010 23:49

Re: Vertical Pipe Hanging
 
from what I hear 2056 does the 78 style drive up the pole hanging. Can't wait to see it in action.


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