Forum: Technical Discussion
06-01-2010, 03:10
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Replies: 13
Views: 1,759
Re: Rover wheels on carpet?
Shouldn't take much longer than ~45mins tops, and it's perfectly reversible.
Though I just suggest protecting all open connections. It's a bad idea to have things exposed regardless of static risk....
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Forum: Technical Discussion
06-01-2010, 03:09
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Replies: 33
Views: 13,591
Re: crab drive vs. mecanum drive system
Alright, I'll give you that.
But this is FRC, where we need to keep weight, simplicity, and practicality in mind. Not to mention, the inevitable increase in flex (solid axle to frame members vs....
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Forum: Technical Discussion
04-01-2010, 21:49
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Replies: 12
Views: 2,509
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Forum: Technical Discussion
04-01-2010, 21:45
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Replies: 33
Views: 13,591
Re: crab drive vs. mecanum drive system
^ Words of sense.
Mecanum is simple to build (well, compared to Crab/Swerve), but the more complicated programming and driver training is one turn off, and the lack of traction is another. If...
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Forum: Technical Discussion
04-01-2010, 17:01
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Replies: 26
Views: 5,443
Re: Bumper Attachment for Rapid Removal
Idea for preventing that, taken from race cars;
http://www.irvansmith.com/scart/hood-pin-cable-24-p-347.html?utm_source=googprod&utm_term=HOD-2001
Something like that. Thin cable, one side with the...
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Forum: Technical Discussion
04-01-2010, 16:45
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Replies: 26
Views: 5,443
Re: Bumper Attachment for Rapid Removal
There's two good ways to do this that I can think of.
The first is if you have a reasonably solid frame, 1/4in thick or more, solid bar chassis (like 675 uses... a lot...). You could have matching...
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Forum: Control System
05-03-2009, 15:22
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Replies: 15
Views: 4,319
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Forum: Control System
05-03-2009, 14:39
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Replies: 15
Views: 4,319
Re: non-'FRC legal' control systems?
Seeing as how I'm a complete knob when it comes to electronics, yes, I would like a convenient three pin header for a PWM cable. I'll probably be feeding two PWM outputs to two Victor 884s, so.
How...
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Forum: Control System
05-03-2009, 12:59
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Replies: 15
Views: 4,319
Re: non-'FRC legal' control systems?
I was thinking Arduino because when I'm done with my senior project, I can cannibalize it and use the Arduino for come other really cool stuff.
What shield or module would I use to be able to...
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Forum: General Forum
03-03-2009, 15:25
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Replies: 233
Views: 34,155
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Forum: General Forum
03-03-2009, 15:02
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Replies: 233
Views: 34,155
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Forum: Control System
03-03-2009, 14:24
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Replies: 15
Views: 4,319
non-'FRC legal' control systems?
Before I get any flak for this -- no, 675 isn't planning on building our own control system.
My senior project involves motors and I'm already somewhat familiar with robot control systems, but if I...
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Forum: CAD
09-01-2009, 20:25
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Replies: 1
Views: 1,271
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Forum: Kit & Additional Hardware
09-01-2009, 19:39
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Replies: 30
Views: 3,770
Re: Wheel Wear
If you guys want a good surface to test on, I suggest some clean tile flooring that is in most schools inside. We had a sample of off-brand regolith and compared it to our tile flooring and got...
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Forum: General Forum
09-01-2009, 19:33
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Replies: 6
Views: 2,277
Re: Have Orbitz Balls, Will Sell.
$10 at walmart, yes, but if this team is offering them for less I'd see no reason to get them here while you can.
All depends on their price.
Us, well, we probably won't need anymore, as it seems...
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Forum: Extra Discussion
09-01-2009, 19:29
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Replies: 31
Views: 6,310
Re: pic: Legal Bumper Configuration?
The bumper configuration is legal from what I understand, however the indentation which is presumably to help keep the trailer controlled isn't legal.
Both of these are assuming I've read the rules...
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Forum: General Forum
08-01-2009, 03:29
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Replies: 84
Views: 5,057
Re: Hours
I feel your pain. In 2006 we had maybe three or four people consistently working on the robot. In 2007 that grew by like, three. I'm pretty sure we didn't have mentors very often if at all in '07....
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Forum: General Forum
08-01-2009, 03:25
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Replies: 26
Views: 1,637
Re: Rookie member here!
FRC robot programming isn't too difficult (well, don't know about this year, but to give you an idea: I'm pretty much the drivetrain leader this year and I did chassis the past two years and I was...
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Forum: General Forum
08-01-2009, 03:14
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Replies: 9
Views: 1,046
Re: Team Skateboard
Rallying takes more balls (for lack of a better term) as well as stupid amounts of driving skill... I mean you've got people throwing themselves down snowed-over gravel roads that are lined with...
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Forum: General Forum
08-01-2009, 01:41
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Replies: 9
Views: 1,046
Re: Team Skateboard
This.
(disclaimer: I'm not an "avid" longboarder but I prefer it greatly to shortboards. Truth be told I'm actually an avid cyclist/motorsports fan but I don't think "Team Rally Cars" would fit...
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Forum: General Forum
08-01-2009, 01:39
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Replies: 84
Views: 5,057
Re: Hours
Week one is usually 3pm-6pm weekdays, 8am-6pm weekends
usually increases the longer build season goes on with week 5 being $@#$@#$@#$@# near 3pm-11pm weekdays and 7am-10pm weekends.
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Forum: Technical Discussion
08-01-2009, 01:36
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Replies: 7
Views: 6,815
Re: Coefficient of Friction on Carpet?
The traction gain is almost negligible.
our raw data:
14lb dynamic (wheels slipping) pull, 60lb robot, 4wd, "smooth/regolith/etc"
16lb dynamic (wheels slipping) pull, 60lb robot, 4wd,...
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Forum: Technical Discussion
08-01-2009, 01:33
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Replies: 36
Views: 6,914
Re: Conveyor Belt
I'm sure there's a number of ways you could do it, but the easiest to do (probably) would be just "standard" treadmill/conveyer belt material... I don't know what it's called but it's almost always...
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Forum: Technical Discussion
08-01-2009, 01:22
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Replies: 106
Views: 21,492
Re: 4WD Turning Difficulties
Give it a little bit to finish clearing the upload, but:
http://www.youtube.com/watch?v=03tYPM1Bw4c
Videographic evidence of what "standard" 4wd bots will turn like. Bot is weighted down (with...
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Forum: Extra Discussion
05-01-2009, 02:04
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Replies: 11
Views: 1,849
Re: pic: Our Robot of Masterpiece
No new controller because Programming has their hands on it and this isn't the Programming testbed, it's the Manufacturing testbed.
4 CIMs because we didn't want to worry about taking one of them...
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We have not always been a winning team but we have always tried to be a quality team. - WynS [more] 
