Forum: Extra Discussion
05-25-2015, 09:39 PM
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Replies: 10
Views: 2,343
Re: pic: Help with solid works gears
This table (http://www.engineersedge.com/gear_formula.htm) is what I use for all of my gear work. I find that it has everything I need when working with gears. Keep in mind that you should leave a...
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Forum: Technical Discussion
05-23-2015, 06:11 PM
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Replies: 15
Views: 2,078
Re: Radio communication
Although I don't know the specifics on how this might work (or if it's even possible) you could look at using an arduino Ethernet or an Ethernet shield paired with an arduino to receive the commands...
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Forum: Technical Discussion
05-23-2015, 02:10 PM
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Replies: 15
Views: 2,078
Re: Radio communication
Although I haven't with the roborio, I have done something like this using an arduino. I took an RC remote receiver and hooked its outputs up to the analog inputs on the arduino. I could then...
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Forum: General Forum
05-20-2015, 09:50 PM
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Replies: 85
Views: 16,253
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Forum: Technical Discussion
05-14-2015, 11:13 PM
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Replies: 14
Views: 3,515
Re: Experience with 3D Printed Gears
We used PLA 3d printed gears on our drive transmissions hooked up to an encoder for position feedback. They worked absolutely great. We took the cad files of a vex 24t, 20dp gear, modified it to fit...
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Forum: Extra Discussion
05-08-2015, 12:13 AM
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Replies: 65
Views: 12,371
Re: pic: Small CIM in wheel swerve
Are you certain your materials are set correctly? A mini CIM weighs 2.16lbs according to VEX. If they are set correctly and that is in fact how light the module is, than I must say, very impressive.
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Forum: Technical Discussion
05-05-2015, 08:49 AM
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Replies: 37
Views: 6,535
Re: Sheet Metal Fabrication vs. Using Channel
All he is saying is that if you take weight from the chassis and put it into a system that is even half an inch higher, you have raised your COM. Depending on your robots design, this may not be an...
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Forum: Extra Discussion
05-04-2015, 07:32 PM
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Replies: 17
Views: 4,067
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Forum: General Forum
05-01-2015, 07:05 PM
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Replies: 2
Views: 1,482
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Forum: Technical Discussion
04-30-2015, 11:44 PM
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Replies: 36
Views: 4,948
Re: Localization of A Omni-Directional Robot
The biggest issue with this method is wheel slippage. Say I accelerate to quickly, or I get into a pushing match and my wheels start to spin because they lost traction. All of a sudden my robot...
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Forum: Team Organization
04-30-2015, 10:13 PM
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Replies: 25
Views: 5,524
Re: What is Your Team's Application Process?
Back in 2013, Ontario faced bill 115 causing many teams to not be able to compete that year. Our team was fortunate enough that year to become considered an official course within our school allowing...
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Forum: Technical Discussion
04-28-2015, 10:59 PM
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Replies: 36
Views: 4,948
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Forum: Technical Discussion
04-28-2015, 10:17 PM
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Replies: 36
Views: 4,948
Re: Localization of A Omni-Directional Robot
What about 2 omni wheels placed perpendicular to each other that drag along the floor. As the one in the y axis moves, it gives you your position in the y axis and the same as with the x. Although I...
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Forum: Technical Discussion
04-28-2015, 04:51 PM
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Replies: 36
Views: 4,948
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Forum: General Forum
04-26-2015, 03:08 PM
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Replies: 66
Views: 8,771
Re: Do we want another game without defense?
This was a very fun game to play in vex and I'm certain it would a great one to do in FRC. Autonomous ranged anywhere from basic drive forward, to a complex series of movements going about the field...
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Forum: General Forum
04-24-2015, 12:51 AM
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Replies: 1
Views: 1,249
Re: Championship Reminders
Couldn't agree more. Points 1,2,5 and 6 especially. All things I wish I had done/should have done the last time I went to champs.
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Forum: Motors
04-22-2015, 09:22 PM
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Replies: 13
Views: 2,673
Re: Throttle control motor gears?
The biggest advantage to me is their availability. Almost every year we get at least one of these in the KOP (this year we got 8!) and they just keep piling up in our work space. A gearbox that...
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Forum: Championship Event
04-22-2015, 12:37 PM
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Replies: 10
Views: 3,399
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Forum: Motors
04-22-2015, 12:10 AM
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Replies: 13
Views: 2,673
Re: Throttle control motor gears?
yes there was another thread recently with a similar ambition as mine. I too am looking into possibly trying to make a gearbox for these motors. If I can make one that is reasonably easy to make, it...
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Forum: Motors
04-21-2015, 05:57 PM
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Replies: 13
Views: 2,673
Throttle control motor gears?
Ive been looking at using some of our denso throttle control motors for an offseason project and am having troubles finding gears to mesh with the pre-installed gear. Does anyone know where to get...
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Forum: Technical Discussion
04-18-2015, 11:40 PM
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Replies: 28
Views: 4,628
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Forum: Technical Discussion
04-15-2015, 03:04 PM
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Replies: 28
Views: 4,628
Re: Octocanum Drive/ Mecanum Suspension Designs?
2386 used mecanum for the first time this year and I too was concerned with suspension/ full wheel contact. In order to help keep our masts from swaying at the front of the robot, we used tensioned...
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Forum: General Forum
04-11-2015, 05:24 PM
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Replies: 16
Views: 4,381
Re: FRC Team 271 teaser
That's 33.6lbs of CIMs alone, let alone the gears (heck the gears look like steel too) on that thing. Would it be possible to get a weight on those? what on earth needs that much power?
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Forum: Extra Discussion
04-03-2015, 07:32 PM
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Replies: 13
Views: 4,482
Re: pic: Swerve module iteration 1
https://lh4.googleusercontent.com/xXLaa14rqxH5DGxnxHA1Iv9YjwyyOJQsO6tArfXJIaNcMlTzeQ8rntYBKR9L_ohBfTCJR-dHkT8QVMY=w1256-h735
A few revisions since my initial post. I've added a second bearing to the...
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Forum: General Forum
04-01-2015, 11:42 PM
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Replies: 117
Views: 17,542
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I tried, but our freshmen lost enthusiasm about filing the blocks of aluminum I gave them into Andymark Performance Wheels after only a few hours! - Greg Woelki [more] 
