Chief Delphi - Cal Games 2008

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- - Cal Games 2008 (http://www.chiefdelphi.com/forums/showthread.php?t=67939)

Re: Cal Games 2008

Quote:

Originally Posted by Hachiban VIII (Post 772067)

692 won the other judges award (I believe)

Yes, we did indeed win a Judges' Award!! :)

Thanks to everyone who helped put this event on, we all had a fantabulous time!!

Re: Cal Games 2008

Quote:

Originally Posted by Hachiban VIII (Post 772067)

The new side panels were unable to dissipate the heat and our breakers tripped repeatedly, causing our robot to be jerky and slow. :( We even tried to use ice-packs to keep things cool... But we never really solved the problem.

Nonetheless it was a great learning experience, and something we will be accounting for in the future.

Perhaps AM should take note not to use plastic on the motor-side of their tyrannies anymore ;)

This is pretty common when you use the FP's with just two CIM's. We had this problem often in 2006. We burned up probably 10-12 FP's with a similar setup. If you don't have a heatsink/fan blasting the motors it's pretty much guaranteed to happen if you're using them under a lot of load.

Re: Cal Games 2008

Quote:

Originally Posted by Cory (Post 772199)

Suprisingly, it was the CIM's that got hot, not the FP's... The FP's stayed nice and cool (we used heat sinks).

We never had this issue of over heating CIM's with our aluminum plates, and we had only half the motors in the drive :ahh:.

Re: Cal Games 2008

Quote:

Originally Posted by Ken Leung (Post 772113)

By the way, I would love to see any pictures of the event uploaded. ;)

Some pictures are up now... more will probably be uploaded later...

Re: Cal Games 2008

The Calgames was on the news yesterday.

http://www.youtube.com/watch?v=iSyoWtPHNjI

Pretty awesome!!
But it wasn't the best match :/

-Eric J.

Re: Cal Games 2008

Congrats to the WRRF for yet another terrific Cal Games. Ryan Epperson did an outstanding job as Cal Games manager, as did the awesome group of volunteers who supported the event. We totally enjoyed the energy at the venue, especially in the elimination rounds.

We're looking forward to coming back and maybe winning two matches in next year's finals!;)

Re: Cal Games 2008

Thank you David, We could not have done it without the field that you brought up from LA. That helped make CalGames such a success!

Thank you to all the teams that came and volunteered, we were packed up and out of Mitty in under 2 hours! We could not have done it with out all of the students and Mentors. You guys help CalGames run smoothly!

Thank you!

- Ryan Epperson
CalGames 2008 Manager

Re: Cal Games 2008

Find some photos here (courtesy of Tim Craig):
http://picasaweb.google.com/CalGames2008

It was awesome, eh? whew!! These photos really show the amount of work AND the amount of fun!!

When I get back to San Jose (I'm in North Carolina rignt now), I'll upload the words we put together for the awards and make a nice .PDF of it all. ;)

Cheers,

Re: Cal Games 2008

Quote:

Originally Posted by Ceal Craig (Post 772679)

Wow great pictures! Thanks for putting these up.

Re: Cal Games 2008

Quote:

Originally Posted by Hachiban VIII (Post 772201)

I really don't understand the issue that was happening, can you provide more details about your system?

From what I'm assuming, your gearbox is a Super shifter with one pair of the shifting gears removed, with custom plastic plates, a single small CIM and a FP into an AM planetary (with a heatsink).

Breakers were being tripped, and the CIMs were hot are the symptoms you claim?

I also don't understand how your CIMs stayed cool when there was only a single on each side; Every drive I've been involved with since 05 had atleast two CIMs (and in once case a FP in additon) and they always became really hot after use.

Re: Cal Games 2008

Quote:

Originally Posted by AdamHeard (Post 772709)

Yes.

We brought ice-packs to the games expecting the FPs to over-heat. We were very cautious to keep their temp down. We never worried about the CIMs until the finals matches :ahh:

Keep in mind that our old trannies had aluminum side plates.

Quote:

Originally Posted by AdamHeard (Post 772709)

I also don't understand how your CIMs stayed cool when there was only a single on each side; Every drive I've been involved with since 05 had atleast two CIMs (and in once case a FP in additon) and they always became really hot after use.

As Mr. Baker explained to me, shifting did a lot to lighten the load on the CIM's. Running at our slow-speed of 6 fps didn't draw a lot of current. We only used the high speed down the straight-aways.

Our new transmissions were geared slightly higher to 11 fps, which probably drew more amps when turning.

We also had new drivers at CalGames, who might have been pushing our robot harder than I ever did...