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Team 968/254: top of lifter mechanisim

roboticWanderor

By: roboticWanderor
New: 17-06-2008 23:45
Updated: 19-06-2008 14:47
Views: 3518 times


Team 968/254: top of lifter mechanisim

a detail shot of the top of the Cheesy Poof's lifter mechanism. the bearings, pulleys and stages of the lifter can be seen.

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18-06-2008 09:13

vivek16


Unread Re: pic: Team 254: top of lifter mechanisim

Sweet. That really is a neat linear bearing system. Where do you get the rollers?

Color me impressed.

-Vivek



18-06-2008 10:35

JesseK


Unread Re: pic: Team 254: top of lifter mechanisim

Are the pieces that hold the bearings milled aluminum? I'm curious to know if it's possible to use a 3d printer to make them out of ABS plastic in a way that is perhaps as strong as aluminum. For a single stage lift I'd conjecture the stresses on those parts aren't too high when the lift is up under normal conditions, but I wonder about shock loading while the lift is up.



18-06-2008 10:52

Cory


Unread Re: pic: Team 254: top of lifter mechanisim

Quote:
Originally Posted by vivek16 View Post
Sweet. That really is a neat linear bearing system. Where do you get the rollers?

Color me impressed.

-Vivek
They're double sealed R4 ball bearings.

Quote:
Originally Posted by JesseK View Post
Are the pieces that hold the bearings milled aluminum? I'm curious to know if it's possible to use a 3d printer to make them out of ABS plastic in a way that is perhaps as strong as aluminum. For a single stage lift I'd conjecture the stresses on those parts aren't too high when the lift is up under normal conditions, but I wonder about shock loading while the lift is up.
Yes, they're aluminum. You could probably get away with it for the lateral supports, but I wouldn't trust a piece of plastic to do the job for the front-back bearings. Like you said, you can get a large shock load going through them.



18-06-2008 14:30

roboticWanderor


Unread Re: pic: Team 254: top of lifter mechanisim

what impressed me the most was how they managed to fit so many simple and reliable systems together to form one large complex robot that preformed beautifully. each sub system (the roller finger, the lifter, the claws, the launcher) was incredibly simple and well designed for it's purpose. Then they managed to get each one to fit together perfectly within that 3ft by 4ft by 5 ft box! definitely well thought out and well planned. even the flag holder was elegantly incorporated into the rest of the design.



18-06-2008 14:35

R.C.


Unread Re: pic: Team 254: top of lifter mechanisim

Does anyone have a pic of the launcher portion or can tell how it works, thanks



18-06-2008 14:36

roboticWanderor


Unread Re: pic: Team 254: top of lifter mechanisim

Quote:
Originally Posted by rc_cola1323 View Post
Does anyone have a pic of the launcher portion or can tell how it works, thanks
yep



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