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Unread 07-02-2008, 02:37
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Re: pic: Its almost done

Quote:
Originally Posted by Ben Piecuch View Post
Wait, are you guys saying that we shouldn't build our robot with PVC? It's too fragile, it's too weak, it'll break? Maybe we should redesign our robot then. Oh, I'll let Bill Beatty from Team 71 know too. I think they have a couple national championship robots that used a whole lot of PVC...

When used properly, PVC is an extremely light, strong, compliant (and cheap!) material for use on a FIRST robot. I have seen a lot of PVC parts bend at some extreme angles, and return to their original shape. Aluminum parts don't seem to like such usage.

I would recommend the glueing method of attachment over the bolts.

Bengineer
heh,
yes it is agreed that it is light, very strong for its weight, and cheap [and very good for prototyping], high-speed impact situations such as ones that might possibly occur in this game would not bode well for any arm made of PVC
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Unread 07-02-2008, 08:12
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Re: pic: Its almost done

How much does your robot weigh? Do you have any bumper ideas?

How long does it take for your manipulator to capture the ball? Release the ball?

Interesting drivetrain.. do all six wheels drive?

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Unread 07-02-2008, 12:20
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Re: pic: Its almost done

i'm guessing from the picture that the claw does not actually grab the ball but contains it? are you planning on running around quick, rolling the ball over the line, grabbing it again, and then repeating? it looks like a good design though i would have doubts about maneuverability in some situations and it looks like your bot would have little torque
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Unread 07-02-2008, 16:29
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Re: pic: Its almost done

Quote:
Originally Posted by Qbranch View Post
How much does your robot weigh? Do you have any bumper ideas?

How long does it take for your manipulator to capture the ball? Release the ball?

Interesting drivetrain.. do all six wheels drive?

-q
Our robot weighs about seventy five pounds. we have bumpers made up, they just havent been mounted. we didnt get so lucky with the moters ad they laked sufficent tourqe, but we are currently testing some new globe moters. only two wheels drive
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