Forum: Programming
07-03-2006, 23:36
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Replies: 12
Views: 1,256
Re: Keeping a certain heading using a gyro
I'd probably go with I. The I term will compensate better if you have long term error, it'll ensure that if you're heading slightly off course, over time you'll correct.
Not to rewrite a book on...
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Forum: General Forum
07-03-2006, 22:55
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Replies: 11
Views: 1,326
Re: Couple questions
I'm not sure that this poll is asking right question to ask if you want to think about the bigger picture.
I think it requires basically 4 questions:
1. What percentage of freshman students at...
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Forum: Rumor Mill
07-03-2006, 00:02
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Replies: 20
Views: 1,593
Re: Where will FIRST be in 10 years
Though I don't think you intended to, Ken, it sort of appears you really downplayed the two really ugly sides of FIRST that in my opinion are holding it back in terms of growth. Please forgive me if...
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Forum: General Forum
27-02-2006, 19:52
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Replies: 85
Views: 43,011
Re: pic: The 2006 NiagaraFIRST Triplets!
Karthik:
I know that we haven't talked much on these forums, and I'm not nearly as regular of a poster as I once was, so to be clear the "tone" of the post that follows, it's meant to moderately...
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Forum: General Forum
03-02-2006, 17:57
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Replies: 3
Views: 3,321
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Forum: Technical Discussion
25-01-2006, 22:45
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Replies: 21
Views: 4,075
Re: Anyone Thought of This?
What are your thoughts on this design?
Why are you sharing it?
Why do you think this design is worthwhile?
Share some more of your thoughts - it will get you more feedback! :]
Matt
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Forum: Motors
24-01-2006, 10:19
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Replies: 32
Views: 9,555
Re: Low Cost Planetary Gearbox Source...
You can read the whitepaper here:
Nothing But Dewalts (http://www.chiefdelphi.com/forums/papers.php?&action=single&paperid=398)
And read the discussion here:
Nothing But Dewalts...
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Forum: Technical Discussion
23-01-2006, 13:47
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Replies: 11
Views: 1,619
Re: Will the gear tooth break?
I confess I double checked your circular tooth thickness. Perhaps we're just using different terminology, but if you mean the thickness of the gear tooth on the circular pitch, I think the formulas...
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Forum: Technical Discussion
23-01-2006, 13:13
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Replies: 11
Views: 1,619
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Forum: Extra Discussion
23-01-2006, 02:11
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Replies: 11
Views: 3,413
Re: pic: Team 229's Anodized IFI Wheels
Now the question becomes, "Do we want to join in the new trend-setting style of 229 or follow the classic chrome bling of 111?"
A beautiful job, folks!
Matt
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Forum: Extra Discussion
23-01-2006, 02:08
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Replies: 31
Views: 6,954
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Forum: Programming
23-01-2006, 01:42
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Replies: 5
Views: 1,004
Re: Max Encoder/Interrupt Frequency?
Have you considered use of a tachometer instead?
It will provide a feedback voltage proportional to the speed. This could eliminate all your worries. :)
Matt
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Forum: Technical Discussion
22-01-2006, 22:37
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Replies: 11
Views: 1,619
Re: Will the gear tooth break?
I confess that my 'edit' about the two CIMs working on different teeth had poor logic - they're running on different teeth on the 45 tooth gear, but presumably the 13 tooth gear will have one contact...
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Forum: Technical Discussion
22-01-2006, 03:07
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Replies: 11
Views: 1,619
Re: Will the gear tooth break?
Stall Torque on Two Motors Combined = 39.3 in-lbs. [Edit: Oops... gotta be careful here. They are applying stress on different teeth. Use 19.65 in-lbs)
12:45 Ratio, so 19.65 * (45 / 12) = 73.7...
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Forum: Pneumatics
21-01-2006, 01:55
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Replies: 2
Views: 838
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Forum: Technical Discussion
21-01-2006, 01:40
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Replies: 3
Views: 887
Re: Strength difference between aluminum
To answer this question, the moment of inertia is basically a number you can use to compare shapes' strengths relative to one another.
See attached 'secret spreadsheet' snapshot.
It shows that...
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Forum: Extra Discussion
17-01-2006, 14:45
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Replies: 11
Views: 2,197
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Forum: Technical Discussion
17-01-2006, 13:58
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Replies: 10
Views: 869
Re: Pneumatic wheel supplier
http://skywaywheels.com/usfirst.htm
To purchase additional wheels at exclusive, very low prices please call Skyway at 1-800-332-3357. Please have a fax number ready so we can send you the order...
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Forum: Technical Discussion
17-01-2006, 13:36
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Replies: 49
Views: 4,897
Re: omni drive vs tank
Cristian, thanks for contributing to this thread. However, I think that this statement isn't quite true. However, you're not the only one who has made this sort of statement before, so don't feel too...
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Forum: Technical Discussion
17-01-2006, 13:14
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Replies: 49
Views: 4,897
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Forum: Technical Discussion
17-01-2006, 13:05
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Replies: 49
Views: 4,897
Re: omni drive vs tank
Like John, I'm going to try to add some useful information to this thread so we can all speak the same language.
There is actually some truth to this statement.
Using a 4 wheel drive, tank steer...
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Forum: Programming
17-01-2006, 01:03
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Replies: 8
Views: 971
Re: Strange Problem, varible not subtracting?
This is a special case, because its a seperate function. Each time you call this function, everything starts from scratch, assuming you are not sending the value of enc_Right_Old_Count to this...
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Forum: Programming
17-01-2006, 00:19
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Replies: 15
Views: 1,486
Re: CMUcam test rules...
I don't want to dillute the thread here... but does your team (does any team?) really think they're going to launch from 45 feet away? I'm not trying to pick a fight, but I think that your definition...
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Forum: Programming
17-01-2006, 00:07
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Replies: 6
Views: 849
Re: NEED HELP
llb is a lab view file extention. It's included in the zip file that has been pointed to. Read slow. :)
Matt
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Forum: Programming
16-01-2006, 23:55
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Replies: 8
Views: 971
Re: Strange Problem, varible not subtracting?
I see 3 lines involved, minus comments:
enc_Right_Difference = 100 - Enc_Right_Count_Old;
enc_Right_Old_Count = 50;
Print enc_Right_Difference
So... basically this is saying
enc_Right...
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I believe in the rookie teams. - Arefin Bari [more] 
