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-   -   pic: 254/968 Swerve Modules! (http://www.chiefdelphi.com/forums/showthread.php?t=62977)

tdlrali 01-02-2008 09:33
Re: pic: 254/968 Swerve Modules!
 
Looks like coaxial - correct?

Also, aren't those heavy? The sides look like 1/2in...

RobJ 01-02-2008 11:08
Re: pic: 254/968 Swerve Modules!
 
It looks like you and Kirk did a good job making those, I can't wait to pick them up tomorrow!

JackN 01-02-2008 11:16
Re: pic: 254/968 Swerve Modules!
 
Hmmmm, looking at this picture and knowing 254/968's propensity for making 2 practice robots, are we looking at a two wheel swerve ala Simon? Or a really crazy 8 wheel swerve. Or two sets of 4 four a basic swerve.

Ryan Dognaux 01-02-2008 12:35
Re: pic: 254/968 Swerve Modules!
 
Quote:
Originally Posted by Rex114 (Post 689718)
This will be epic.
My thoughts exactly. And knowing these guys, this could be one of the lightest swerve setups FIRST has ever seen.

=Martin=Taylor= 01-02-2008 12:46
Re: pic: 254/968 Swerve Modules!
 
Quote:
Originally Posted by Cory (Post 689990)
They were machined from solid.
You need to find someone with a wire EDM machine. It would be WAY easier.

Mike Hendricks 01-02-2008 13:12
Re: pic: 254/968 Swerve Modules!
 
Quote:
Originally Posted by Hachiban VIII (Post 690216)
You need to find someone with a wire EDM machine. It would be WAY easier.
Maybe .. Wire EDM is expensive .. especially for something that thick .. I think in the end, it would just be cheaper to take a ton of fast passes on a mill.

Those do look very thick .. I'm with tdlrali .. thinking 1/2" - what was the size of the raw aluminum? How many ops? Machine time?

Very hot though. And Adam .. I believe we need to have a little discussion :D

henryBsick 01-02-2008 13:20
Re: pic: 254/968 Swerve Modules!
 
still not a believer....

parts do look nice though

Brandon Holley 01-02-2008 14:42
Re: pic: 254/968 Swerve Modules!
 
Quote:
Originally Posted by Henry_222 (Post 690230)
still not a believer....

parts do look nice though
Henry Sick = not smart

=Martin=Taylor= 01-02-2008 15:26
Re: pic: 254/968 Swerve Modules!
 
Quote:
Originally Posted by PhatMike (Post 690227)
Maybe .. Wire EDM is expensive .. especially for something that thick .. I think in the end, it would just be cheaper to take a ton of fast passes on a mill.
Yes the machine itself would cost a fortune... Thats why they need to find someone else to do it for them.

Rather than buying broaches we cut all our keyways with EDM. We recently cut a 6" long keyway! :ahh:

efoote868 01-02-2008 15:40
Re: pic: 254/968 Swerve Modules!
 
oooo..... shiny...
reminds me of the mecanum hubs one of our team members milled out 2 years ago.

bmusser 01-02-2008 15:57
Re: pic: 254/968 Swerve Modules!
 
Team 118, which is a NASA team from the Space Center near Houston has done this type of drive before. Check this picture.

http://picasaweb.google.com/mussie1/...18144034942354

Michael Corsetto 01-02-2008 18:38
Re: pic: 254/968 Swerve Modules!
 
Quote:
Originally Posted by bmusser (Post 690322)
Team 118, which is a NASA team from the Space Center near Houston has done this type of drive before. Check this picture.

http://picasaweb.google.com/mussie1/...18144034942354
Yes, but 118 as far as I know has always done their coaxial swerves with all four wheels driven by a single gearbox, which doesn't allow for rotating the base, hence why they always have a turreted scoring mechanism. My guess is that poofs/rawc will be doing two gearboxes, improving (if its physically possible) their 2 speed from last year. I just don't see the poofs with a turreted scoring mechanism, doesn't seem like their style. This is all speculation of course, we may see something totally different from the poofs this year, even more so than we have already...

Richard Wallace 01-02-2008 20:07
Re: pic: 254/968 Swerve Modules!
 
Quote:
Originally Posted by Rex114 (Post 690388)
... This is all speculation of course, we may see something totally different from the poofs this year, even more so than we have already...
My prediction: 254/968 will have a drivetrain like their larger, more famous NASA cousins. 2008 is a good year for articulated steering. MER steering is awesome.

And MER hybrid mode is even more awesome.

bmusser 01-02-2008 21:22
Re: pic: 254/968 Swerve Modules!
 
I think you could steer each side or front/back of the drive separately and essentially do a zero point turn or ackerman steering. Take your pick.

EricRobodox 01-02-2008 21:38
Re: pic: 254/968 Swerve Modules!
 
Quote:
Originally Posted by Richard (Post 690442)
My prediction: 254/968 will have a drivetrain like their larger, more famous NASA cousins. 2008 is a good year for articulated steering. MER steering is awesome.

And MER hybrid mode is even more awesome.
Why MER when you can MSL?

:)

Oh, and as for the parts, they look nice, always do :)


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