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Unread 01-04-2003, 01:15 PM
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Q&A Discuss: Suction Cups

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Suction Cups
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Unread 01-04-2003, 01:17 PM
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GM 28 doesn't mention anything about the HDPE floor, though.

Attaching to that via suction seems okay to me.
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Unread 01-04-2003, 01:25 PM
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I agree with Mr.Krass it seems like we have found the first loophole in the rules. The question is though can we create a vacuum this year?
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Unread 01-04-2003, 01:53 PM
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About the response to this question (in the Q/A forum) ...

If you remember during the broadcast, it was said that teams could not push against more than one side of the polycarb siding (on the ramp) at a time. As far as attaching to the sides, it is my understanding that that would mean actually grabbing onto the sides with a claw mechanism or something similar. As far as the mesh ramp goes, they defined 'attaching your robot to it' as pushing something through the mesh. If you had a suction cup, that would not go through it ... though a suction cup would have a hard time sticking to wire mesh!

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Unread 01-04-2003, 01:56 PM
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But you could essentially brace your self on the HDPE platform using one Suction cup on the HDPE and one on the Polycarbonate.
Yes???
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Unread 01-04-2003, 03:31 PM
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Essentially ... Yes.

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Unread 01-04-2003, 03:34 PM
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Looks like you can attach/suction yourself to the HDPE but not to the railings because the would be considered attaching.
I think we should look for a clearer ruling on this in Tuesday Update
Getting this from the GM28
Robots may not intentionally:
Attach themselves to the ramp mesh or framing material;
Attach themselves to the railings/walls of any field structure;
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Last edited by Gamer930 : 01-04-2003 at 03:37 PM.
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Unread 01-04-2003, 07:02 PM
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Quote:
Originally posted by Todd Derbyshire
The question is though can we create a vacuum this year?
Read rule M12. It says vacuum can be transmitted through the pneumatics system. However, I'm not sure how you would go about creating this vacuum. Are we allowed to plug stuff in to the inlet on the compressor?
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Last edited by rbayer : 01-04-2003 at 07:12 PM.
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Unread 01-05-2003, 01:15 AM
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Quote:
Originally posted by Gamer2028
Looks like you can attach/suction yourself to the HDPE but not to the railings because the would be considered attaching.
I think we should look for a clearer ruling on this in Tuesday Update
Getting this from the GM28
Robots may not intentionally:
Attach themselves to the ramp mesh or framing material;
Attach themselves to the railings/walls of any field structure;
I see nothing about attachment to the HDPE platform


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Unread 01-05-2003, 10:51 AM
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Quote:
Originally posted by Cory
I see nothing about attachment to the HDPE platform
Exactly!

Attach themselves to the ramp mesh or framing material;

i.e. not the metal mesh, or the frame of the ramp.

Attach themselves to the railings/walls of any field structure.

not the Railings/Walls OF any field structure, i.e. the vertical sections, not the HDPE! And if you noticed, the limits on suction cups are absolutely none at all! I think suction is definitely allowed on the HDPE.
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Unread 01-05-2003, 04:38 PM
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Quote:
Originally posted by Elgin Clock
But you could essentially brace your self on the HDPE platform using one Suction cup on the HDPE and one on the Polycarbonate.
Yes???
No.
Rule GM31 explicitly states:
Quote:
It is also unacceptable to grab onto or push hard enough against multiple surfaces simultaneously in order to wedge and make immovable a robot.
However, to solve the polyethylyne suction question, GM31 says that you may not attach to the TOP of the polycarbonate walls. It says nothing about the polyethylyne floor.

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Unread 01-08-2003, 07:30 PM
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If you were wondering about creating a vacume, u could reverse the compresser, except i would require some extra programming and solonoids, and alot of testing. My idea is that you use the intake, attach a solonoid, then have an tank outside the system. This way just switch the solonoid, then it will sucl the atmosphere out of the tank. Then from there add another solonoid that would open that tank to the suction cup. As for the suction cup, i would suggest using a silicone type. That is if silicone is legal, im still not sure...
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Unread 01-08-2003, 07:40 PM
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I created a diagram if my speech was confusing. This might help...
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The air is what I yern for, infinite space and yet infinite restrictions. To master the sky is to break out of the mold and to break the rules!
Have you ever looked to the sky on a perfectly clear night, and see that we are only a spec of dust in this great universe?
1) Team 341 Galileo division champions
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Unread 01-08-2003, 09:52 PM
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M12:
Quote:
Only the allowed air cylinders may be used to generate vacuum.
That basically means you just have to back-drive a closed system. Shouldn't be too bad with the plethora of motors we've got.
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Unread 03-27-2003, 05:04 PM
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Our robot used suction cups~ there is a big lengthy explanation of them in the thread scouting #677, if you need information about them.
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