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  #46   Spotlight this post!  
Unread 21-03-2010, 19:50
lenny8's Avatar
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Re: Ball Magnets

i don't know if anyone's seen these http://www.andymark.biz/am-0619.html

its what my team uses and other teams are starting to use and no complaints
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Unread 21-03-2010, 19:54
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Re: Ball Magnets

Mind telling me exactly how that works? It appears as if the arms would just push the ball away...
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  #48   Spotlight this post!  
Unread 21-03-2010, 20:02
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Re: Ball Magnets

Quote:
Originally Posted by MarkoRamius1086 View Post
Mind telling me exactly how that works? It appears as if the arms would just push the ball away...
here's a picture of our teams bot just for visual aid. http://www.chiefdelphi.com/media/photos/35174

they way we use it is use those rollers to grab the ball then once its grabs the ball it keeps the ball spinning on a igus shaft. works great.
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Unread 21-03-2010, 20:08
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Re: Ball Magnets

Quote:
Originally Posted by BJC View Post
I was refering to when you are using a pincher where the rollor (fisherprice motor) has to stop suddenly. Fisherprices can't handle this because they will stall. I'm not sure if you are using this ball possession method, but if you are you must have modified the motor in some way.
i guess i misunderstood what you said we just have a roller no pinching systems :/ sorry for the misunderstanding
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Unread 21-03-2010, 20:16
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Re: Ball Magnets

Quote:
Originally Posted by lenny8 View Post
here's a picture of our teams bot just for visual aid. http://www.chiefdelphi.com/media/photos/35174

they way we use it is use those rollers to grab the ball then once its grabs the ball it keeps the ball spinning on a igus shaft. works great.
Do you have any other pictures of this setup?
Do you press fit them on the igus shft, or do you glue them on?

I bought some of those recently and explained in my earlier post I wish to copy the design.
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  #51   Spotlight this post!  
Unread 21-03-2010, 20:18
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Re: Ball Magnets

Oh... so they are flexible enough that they have a low enough friction coefficient that the ball follows the bar instead of bouncing away?
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Unread 21-03-2010, 20:22
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Re: Ball Magnets

Quote:
Originally Posted by Alex Cormier View Post
Do you have any other pictures of this setup?
Do you press fit them on the igus shft, or do you glue them on?

I bought some of those recently and explained in my earlier post I wish to copy the design.
They are mounted on a square shaft. The igus is the idler roller.
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  #53   Spotlight this post!  
Unread 21-03-2010, 20:25
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Re: Ball Magnets

Quote:
Originally Posted by Alex Cormier View Post
Do you have any other pictures of this setup?
Do you press fit them on the igus shft, or do you glue them on?

I bought some of those recently and explained in my earlier post I wish to copy the design.
actually the " entrappion" stars themselves are on a a tight fit on a 1/2 in square shaft.

if u look at the photo closely we used a 3/4 in igus shaft that is used to not only to keep the ball from going too far in but also to keep the ball spinning on the shaft to have better ball control.
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