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cvhsrobotics
16-01-2005, 15:04
Does anyone have any links to see examples of Pneumatic Claws? (3-fingers)
team222badbrad
16-01-2005, 15:44
You can always go to the stores and look at the different designs used in Crane Machines....

http://lib1.store.vip.sc5.yahoo.com/lib/coastentertainment/WMH-188BP-close.jpg

Here are some more claws:

http://store.yahoo.com/coastentertainment/clclcoet.html

http://spiderman.sonypictures.com/downloads/wallpapers/files/doc2_800.jpg
663.keith
16-01-2005, 15:52
You can always go to the stores and look at the different designs used in Crane Machines....

http://lib1.store.vip.sc5.yahoo.com/lib/coastentertainment/WMH-188BP-close.jpg

Here are some more claws:

http://store.yahoo.com/coastentertainment/clclcoet.html


you just have to think how hard it is to win those toy machines, imagine how hard it would be with a robot!
team222badbrad
16-01-2005, 15:54
That is because they are designed that way and have very weak opening/closing mechanisms!

It is called PROFIT! ;)
Cory
16-01-2005, 15:55
See 254/60's claws from last year. Veyr simple efficient 3 prong grabbers.
Koko Ed
16-01-2005, 16:03
You can always go to the stores and look at the different designs used in Crane Machines....

http://lib1.store.vip.sc5.yahoo.com/lib/coastentertainment/WMH-188BP-close.jpg

Here are some more claws:

http://store.yahoo.com/coastentertainment/clclcoet.html

http://spiderman.sonypictures.com/downloads/wallpapers/files/doc2_800.jpg
Actually it might be very discouraging to witness those claws in action.
They never work.
Karthik
16-01-2005, 16:27
See 254/60's claws from last year. Veyr simple efficient 3 prong grabbers.Here are a couple of good pictures of their gripper.

http://www.firstrobotics.uwaterloo.ca/resources/galleries/grippers/grippers11.jpg
http://www.firstrobotics.uwaterloo.ca/resources/galleries/grippers/grippers15.jpg

For more pictures sorted by mechanism check out the FIRST Mechanism Library, which can be found here (http://www.firstrobotics.uwaterloo.ca/resources.php).
cvhsrobotics
17-01-2005, 00:14
What about grabbing PVC??? Pneumatic or Electric
MASherry
17-01-2005, 10:56
is that a 3/4 or 3/2" bore cylinder on 254/60's arm? and how long was the cylinder?
cvhsrobotics
17-01-2005, 21:57
Well that is your choice, the question is, is there a way to make a 3 fingered claw designed to grab the Tetra's, pneumatic or electric.
greencactus3
17-01-2005, 23:26
Well that is your choice, the question is, is there a way to make a 3 fingered claw designed to grab the Tetra's, pneumatic or electric.
well yes, plenty. now the real question is, is there a reliable yet simple way of grabbing a tetra or tetras quickly?
id say if you're going 3 prong pneumatic just might keep things simpler. but thats just me who has never built a robot that uses more motors than the drive system and always incorporates pneumatic components