Recent Posts

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21
Chit-Chat / Prairie Chickens
« Last post by kweiss on September 13, 2014, 02:24:49 PM »
With the release of this year's game featuring prairie chickens, some of us alumni from team 97 thought it would be fun to have a thread for everyone to post pictures of their favorite prairie chickens! Here are some of our top pics to start the thread off!
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Papers / Team 97 Fernbank LINKS Presentation Tips
« Last post by Andrew on September 12, 2014, 11:17:01 PM »
This document is about how Fernbank LINKS plans our presentations and the timeline of the process.
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Papers / Team 97 Fernbank LINKS BEST Award Exhibit and Interview Tips
« Last post by Andrew on September 12, 2014, 10:15:26 PM »
This document goes over the basics of what we do with our booth and interviews.
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Papers / Team 97 Fernbank LINKS Keys to a Successful Season
« Last post by Jim_Walker on September 12, 2014, 05:30:40 PM »
The following Document is a few tips we've learned over the past few years.
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General Discussion / Linkage comments, issues, or changes
« Last post by Andrew on September 11, 2014, 10:23:16 PM »
Please reply to this topic with any comments, issues, or changes that you have about Linkage. Any feedback is greatly appreciated. Thanks.
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Programming / Team 97 Fernbank LINKS 2013 Auto Leveling Claw Potentiometer Code
« Last post by Andrew on September 11, 2014, 09:29:12 PM »
In 2013 since there were two degrees of freedom in our arm and three degrees of freedom in the claw, controlling the robot required careful integration of software and hardware. To facilitate this, we attached potentiometers to each of the arm joints. We attempted to write a program that used the values from these potentiometers to calculate the angle of the arm based on trigonometric relationships. Using the calculated angle, the program would be able set the servo angles so that the claw remained level at all times.



While this seamed like a great idea at the beginning of the season we quickly learned that it would be one of the most complicated parts on the robot. The first issue we found was when we were figuring out how to transfer the rotation from the arm joints to the potentiometers, this is what eventually led to the failure of the code. We then had to figure out how to calculate the angle to move the servos to which involved trigonometry identities. But once we had the code working we figured out that the way we connected the potentiometers to the arm joint, by rubber covered wheels, was slipping making all of the values wrong. By the time we figured this out it was too late in the competition to redesign it so we ended up scraping the idea.

Attached at the bottom of the file shows the calculations we made in order to get the code working. We hope your able to learn from it.
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Rules/Strategy / Team 97 Fernbank LINKS 2013 Driver test
« Last post by Andrew on September 11, 2014, 09:08:28 PM »
In order to be a driver of the Fernbank LINKS robot you have to pass a more intense driver rule test. Last years test is attached.
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Rules/Strategy / Team 97 Fernbank LINKS 2013 Rule Quizzes
« Last post by Andrew on September 11, 2014, 09:07:08 PM »
In order to keep everyone on the team reading the rules Fernbank LINKS creates rule quizzes. Most of our quizzes from last year are attached.
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Chit-Chat / CNC Music
« Last post by Andrew on September 08, 2014, 10:52:46 PM »
Here's A list of some of team 97's favorite CNC Music

Jonathan Coulton's "Still Alive"
https://www.youtube.com/watch?v=uKCX1CeXIjA

Super Mario Bros.
https://www.youtube.com/watch?v=lCh-LC0UCM0

Cantina Band
https://www.youtube.com/watch?v=xgRTN26qOog

Whats your teams favorite CNC song?
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Papers / Team 97 Fernbank LINKS 2013 Engineering Notebook
« Last post by Andrew on September 07, 2014, 11:16:22 PM »
Team 97 Fernbank LINKS 2013 Engineering Notebook.
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