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The claw is designed to clamp down on the tubes and then rotate them. We drew the parts in CAD and then had The Parts cut by water jet by Tram Tool in Cohoctah Michigan.
Discussion
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12-02-2011 23:43
LLogan
Re: pic: Team 1322 claw for 2011
Correct me if I'm wrong, but it seems like your polycord all turns in the same direction. You might want to consider making an "X" with the polycord in the middle to reverse the direction of one of rollers if that's the case.
12-02-2011 23:46
Jeffy
Re: pic: Team 1322 claw for 2011
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Originally Posted by LLogan
Correct me if I'm wrong, but it seems like your polycord all turns in the same direction. You might want to consider making an "X" with the polycord in the middle to reverse the direction of one of rollers if that's the case.
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13-02-2011 00:12
Chris is me
Re: pic: Team 1322 claw for 2011
Why rotate the tube with rollers when you could put the gripper on a wrist joint?
13-02-2011 00:28
BrendanB
Re: pic: Team 1322 claw for 2011
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Originally Posted by Chris is me
Why rotate the tube with rollers when you could put the gripper on a wrist joint?
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13-02-2011 00:31
Chris is me
Re: pic: Team 1322 claw for 2011
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Originally Posted by BrendanB
KISS. If the top and bottom are run by two different motors, why add a degree of freedom you don't need for your design?
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13-02-2011 00:35
Basel A
Re: pic: Team 1322 claw for 2011
Interesting that there's two rollers on the bottom and one on the top. Wouldn't that route 2/3 of the power to the bottom rollers, such that if you try to rotate the tube upwards it'd mostly just make a quick exit? Or would the pinch hold it in?
13-02-2011 00:44
LLogan
Re: pic: Team 1322 claw for 2011
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Originally Posted by Jeffy
Except if the purpose of the polycord is to rotate the tube once it is inside the clamp.
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13-02-2011 09:32
joeweber
Re: pic: Team 1322 claw for 2011
Our design in on a vertical lift. When a tube is inserted into the claw in automatically closes than we can rotate the tube vertically. We do this so we do not have to raise the lift the additional 30 inches to get the tubes above the hook post. We also can tilt the whole mechanism down to the floor for floor pick up. If the cords were going the wrong direction it would not work for us but it works very well.
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