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Unread 24-11-2007, 11:31
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pic: Team Unlimited's Gear Shifter
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Unread 24-11-2007, 11:32
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Re: pic: Team Unlimited's Gear Shifter
What sensors are you using in the back of your robot?
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Unread 24-11-2007, 11:41
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Re: pic: Team Unlimited's Gear Shifter
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Originally Posted by WCRobotics View Post
What sensors are you using in the back of your robot?
Pretty sure they are using optical shaft encoders to detect axle rotation.
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Unread 24-11-2007, 11:50
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Re: pic: Team Unlimited's Gear Shifter
how much vex do you guys have!?!?
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Unread 24-11-2007, 13:05
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Re: pic: Team Unlimited's Gear Shifter
Quote:
Originally Posted by fredliu168 View Post
Pretty sure they are using optical shaft encoders to detect axle rotation.
That's what I thought, just wondering if it had anything to do with stopping the motor that changes the gears.
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Unread 13-12-2007, 10:24
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Re: pic: Team Unlimited's Gear Shifter
I think it would be best to use a real servo with a limited rotation and exact position for shifting the gear, instead of a motor...

all in all amazing design! very cool!

I really like how it shows the complex notion of gear changing in an easy to understand way...

-Leav
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Unread 13-12-2007, 10:28
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Re: pic: Team Unlimited's Gear Shifter
How did you guys get those three gears in the back flush against each other (cut off protruding edge or just different gears?)
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Unread 13-12-2007, 13:39
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Re: pic: Team Unlimited's Gear Shifter
Quote:
Originally Posted by XxMORTteam11xX View Post
How did you guys get those three gears in the back flush against each other (cut off protruding edge or just different gears?)
You got it, they would have had to grind down the edge.
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Unread 23-12-2007, 17:29
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Re: pic: Team Unlimited's Gear Shifter
isnt that illegal
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Unread 23-12-2007, 18:37
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Re: pic: Team Unlimited's Gear Shifter
Quote:
Originally Posted by 11Mort11 View Post
isnt that illegal
Rule <R9> gives a list of which parts can not be modified, and other ways things can not be attached. Taking parts and modifying them is allowed, otherwise a team would not be allowed to cut metal.
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Unread 23-12-2007, 22:30
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Re: pic: Team Unlimited's Gear Shifter
that is cool,but do you guys have a problem with the gears grinding as you shift. or do you stop,then shift. Just wondering?
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Unread 25-12-2007, 01:57
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Re: pic: Team Unlimited's Gear Shifter
There design is shift on the fly but the can shift stationary. The rack and pinion make much it smoother. I dont know if you can see it or not they also beveled the gears with a drill and sandpaper.
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Unread 25-12-2007, 10:24
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Re: pic: Team Unlimited's Gear Shifter
o yea i see that now thanks.
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