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Unread 02-01-2015, 19:11
Ginger Power's Avatar
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The GreenHorns Team Lead
AKA: Ryan Swanson
FRC #4607 (C.I.S.)
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[Ri3D] The Greenhorns

The GreenHorns are excited to join Ri3D this year! Here is a little background information on our team:

We are primarily made up of college students from Bison Robotics, a club at North Dakota State University. The remaining members of our team are CIS 4607 alumni. Our livestream and video updates will be done by members of 3276 Toolcats.

Most of us are freshmen or sophomores in college and have limited FRC experience. However, all of us are enthusiastic about robotics, FIRST in particular. We aim to give back to the FRC community by providing mass mentorship throughout our endeavor. Also, by engaging in this activity, we hope to grow individually as engineers while having fun in the process.

We would like to thank all of the Ri3D sponsors for making this possible: AndyMark, 221 Robotic Systems, Rev Robotics, Modulus, and Competition Robot Parts. We would also like to thank our personal sponsors: 3276 Toolcats, Liberty Paper, Becker High School, and especially CIS 4607.

You can keep up with us at the following links:

Ri3D Blog

Twitter

Facebook

Youtube

Last edited by Ginger Power : 02-01-2015 at 19:20.
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Unread 02-01-2015, 19:22
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jeremylee jeremylee is offline
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FRC #2526 (Crimson Robotics)
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Re: [Ri3D] The Greenhorns

Very cool! Go Bison!
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Unread 03-01-2015, 21:14
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The GreenHorns Team Lead
AKA: Ryan Swanson
FRC #4607 (C.I.S.)
Team Role: Mentor
 
Join Date: Jan 2014
Rookie Year: 2012
Location: Becker, Minnesota
Posts: 892
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Re: [Ri3D] The Greenhorns

Everybody check out our livestream here!!!
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Unread 04-01-2015, 00:42
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Re: [Ri3D] The Greenhorns

Livestream is looking good!

http://cateyenls.com/Home.html
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Unread 04-01-2015, 02:34
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Ginger Power Ginger Power is offline
The GreenHorns Team Lead
AKA: Ryan Swanson
FRC #4607 (C.I.S.)
Team Role: Mentor
 
Join Date: Jan 2014
Rookie Year: 2012
Location: Becker, Minnesota
Posts: 892
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Re: [Ri3D] The Greenhorns

Still working hard if you want to check us out! We feel like we're ahead of schedule but I'm not sure it's possible to be ahead of schedule for a robot in 3 days. After you follow the link above click "Live" in the top right corner.

Last edited by Ginger Power : 04-01-2015 at 02:41.
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Unread 07-01-2015, 19:29
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Ginger Power Ginger Power is offline
The GreenHorns Team Lead
AKA: Ryan Swanson
FRC #4607 (C.I.S.)
Team Role: Mentor
 
Join Date: Jan 2014
Rookie Year: 2012
Location: Becker, Minnesota
Posts: 892
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Re: [Ri3D] The Greenhorns

I would love to answer any questions that people have about our robot. Our goal for the robot was simplicity. Excluding the slide drive we only had 1 pneumatic cylinder and one motor on the robot. I'm not sure how much more simple we could have made it.
Here are some of the best videos we have out there:

Robot Reveal

The Elevator

The Claw

Possible improvements

Overall Robot Walkthrough

Slide Drive Demo

Sorry about how awkward we are on video! Robot Reveal on the way shortly!

Last edited by Ginger Power : 08-01-2015 at 00:00.
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Unread 07-01-2015, 20:19
DohertyBilly DohertyBilly is offline
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Re: [Ri3D] The Greenhorns

How well did the drive move side to side when the robot was holding a stack?
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Unread 07-01-2015, 20:24
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The GreenHorns Team Lead
AKA: Ryan Swanson
FRC #4607 (C.I.S.)
Team Role: Mentor
 
Join Date: Jan 2014
Rookie Year: 2012
Location: Becker, Minnesota
Posts: 892
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Re: [Ri3D] The Greenhorns

Quote:
Originally Posted by DohertyBilly View Post
How well did the drive move side to side when the robot was holding a stack?
There was no difference when it was holding a stack. It went perfectly perpendicular without problem and at the same speed. We even tested it while holding 6 totes and a recycling bin and there still wasn't an issue.
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Unread 07-01-2015, 23:05
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jeremylee jeremylee is offline
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Re: [Ri3D] The Greenhorns

Very cool. Did you still have drop center?
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Unread 07-01-2015, 23:40
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CalTran CalTran is offline
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FRC #2410 (BV CAPS Metal Mustang Robotics)
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Re: [Ri3D] The Greenhorns

One question for now, probably more after I look through all your posted designs:

If members are a mixture of Bison and CIS, and "hosted" by ToolCats, where on earth does Greenhorn come from?
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Team 2410 thinks KISSing is amazing! Keep It Super Safe!
  • "You know you've been in robotics too long when you start talking to your tools." "Well, you've been in robotics CLEARLY too long when they start talking back"
  • Theory is when you know everything but nothing works. Practice is when everything works but you don't know why. On our team, theory and practice comes together - nothing works and nobody knows why.
MMR 2410 Student (2010 - 2013) | MMR 2410 Mentor (2013 - Present)
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Unread 07-01-2015, 23:47
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Ginger Power Ginger Power is offline
The GreenHorns Team Lead
AKA: Ryan Swanson
FRC #4607 (C.I.S.)
Team Role: Mentor
 
Join Date: Jan 2014
Rookie Year: 2012
Location: Becker, Minnesota
Posts: 892
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Re: [Ri3D] The Greenhorns

Quote:
Originally Posted by jeremylee View Post
Very cool. Did you still have drop center?
Yes and it was incredibly annoying to work with. We decided to keep 6 omni wheels because 4 wouldn't give us the clearance necessary to get over the bump. Because we had the drop center with strafe when we weren't moving our robot would balance and wouldn't be able to move because the drive wheels didn't have enough traction (our strafe wheel was 3/16" lower than our outside wheels). We solved with by making the front of our Robot ridiculously heavy (battery+ almost all mechanical components). We didn't think we had enough time to put the center wheel on a pneumatic cylinder which is what I would recommend for teams who are looking to do a slide drive. Don't do slide with drop center!
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Unread 07-01-2015, 23:50
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The GreenHorns Team Lead
AKA: Ryan Swanson
FRC #4607 (C.I.S.)
Team Role: Mentor
 
Join Date: Jan 2014
Rookie Year: 2012
Location: Becker, Minnesota
Posts: 892
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Re: [Ri3D] The Greenhorns

Quote:
Originally Posted by CalTran View Post
One question for now, probably more after I look through all your posted designs:

If members are a mixture of Bison and CIS, and "hosted" by ToolCats, where on earth does Greenhorn come from?
The GreenHorns are a team made up primarily of members of Bison Robotics from NDSU. NDSU's colors are Green and yellow. The mascot is a bison. We are all freshman and sophomores in college. Our thinking was that Greenhorn which basically means rookie fit who we were to a T. Plus it sounded cool.
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Unread 07-01-2015, 23:53
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Re: [Ri3D] The Greenhorns

Ah. That's a pretty sweet coming together for names!
__________________
Team 2410 thinks KISSing is amazing! Keep It Super Safe!
  • "You know you've been in robotics too long when you start talking to your tools." "Well, you've been in robotics CLEARLY too long when they start talking back"
  • Theory is when you know everything but nothing works. Practice is when everything works but you don't know why. On our team, theory and practice comes together - nothing works and nobody knows why.
MMR 2410 Student (2010 - 2013) | MMR 2410 Mentor (2013 - Present)
FTC Game Announcer / EmCee (2014 - Present) | FRC EmCee (2015 - Present) | FRC Referee (2016) | FTC Referee (2017)
Academic Student (Forever)
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Unread 07-01-2015, 23:56
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Ginger Power Ginger Power is offline
The GreenHorns Team Lead
AKA: Ryan Swanson
FRC #4607 (C.I.S.)
Team Role: Mentor
 
Join Date: Jan 2014
Rookie Year: 2012
Location: Becker, Minnesota
Posts: 892
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Re: [Ri3D] The Greenhorns

Quote:
Originally Posted by CalTran View Post
Ah. That's a pretty sweet coming together for names!
I originally wanted something way more terrible but when somebody said it we were all like "wow that just happened".
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Unread 09-02-2015, 09:42
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Re: [Ri3D] The Greenhorns

We are having trouble with our uprights separating and the elevator coming off track. I see that you captured your elevator upright with a set of rollers on each side of the upright. Did you just use a longer shoulder bolt between the 2 brackets? if so, how long?
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