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  #31   Spotlight this post!  
Unread 20-02-2013, 16:14
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Re: Team 1538 Proudly Presents: Daisy Thunder

Quote:
Originally Posted by EricLeifermann View Post
You feel good about your robot after bagging it up at 11:59, then the next morning you see a team show something like this and you start to rethink your whole design/strategy... Thanks Cows really appreciate it
You sure about that.
Someone sent me a pic of your robot as well. Looks good too!

Great job 1538!
Its a good thing Jon isnt going to be the HP. He's holding up your robot scoring with the feeder loading.
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  #32   Spotlight this post!  
Unread 20-02-2013, 16:18
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Re: Team 1538 Proudly Presents: Daisy Thunder

kiet and crew..

great job with the machine. Now I want to tweak our machine a bit differently ... haha

but really does look impressive, I am waiting to see the 30 pt. climber, thats the only reason i assume a 250 reduction on 2 CIMs.
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  #33   Spotlight this post!  
Unread 20-02-2013, 16:46
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Re: Team 1538 Proudly Presents: Daisy Thunder

Kinsuk,

It's just a 10 point climber, but it should be pretty fast.

Glenn,
A lot of the kids had gone home for the day when we took the video, so I had to jump in as feeder. Not bad considering we had a washed up Einstein driver, a first time human player and a kid who barely knew how to operate?

I love hearing about how a robot came to be, I guess we'll let everyone in on the origin of the design...

The day of kick-off we came to the conclusion that:

1) a good auto mode could win most of our matches (at the regional level) before anyone touched the sticks.

2) floor loading was a requirement for a few reasons. First off, you needed to floor load to pick up more discs. Secondly, partners would inevitably miss shots and we being able to pick up their missed shots would cut down our cycle times and increase our throughput. Lastly, we noticed that it was very hard to shoot the colored discs in the pyramid or throw them from the loading station. We wanted to be able to take our opponents colored discs out of the game and reduce the number of possible points they could score in the pyramid goal.

3) A level 1 climb was required, however we felt we could mitigate the effects of a level 2 and 3 climb by being a strong disc scorer.

With this in mind we figured we were looking at a fairly complex robot. With lots of single purpose mechanisms. After our team meeting Kiet and I went down the street to a restaurant to discuss the game further. When we arrived, he came up to me and said "You know what we need? We need a 67 arm!". He was referring to 67's utility arm from 2012. At first I thought he was joking and then after a few minutes of talking about it, we realized it wasn't that bad of an idea. When we sat down we talked about how the arm could be used to pick up discs, tilt the shooter, hang, etc. Suddenly our list of mechanisms went from 8 or 9 to 5. Over the next few days we started working on individual parts of the arm (floor loader/funnel, magazine/feeder, shooter, etc). About mid way through week 2 all of these prototypes had been integrated together and worked pretty well together, so this design was given the green light.
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  #34   Spotlight this post!  
Unread 20-02-2013, 17:00
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Re: Team 1538 Proudly Presents: Daisy Thunder

Guys,
Simple, Elegant, and Clean - I am continuously in awe of ya'lls ability to build a beautiful machine. Don't settle for just a 7 disc auton or a lousy human player.
  #35   Spotlight this post!  
Unread 20-02-2013, 17:21
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Re: Team 1538 Proudly Presents: Daisy Thunder

Great Robot! We also like the name.
Good luck to all of our friends on the Holy Cows!
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  #36   Spotlight this post!  
Unread 20-02-2013, 17:24
Akash Rastogi Akash Rastogi is offline
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Re: Team 1538 Proudly Presents: Daisy Thunder

Quote:
Originally Posted by Jon Jack View Post
Kinsuk,

It's just a 10 point climber, but it should be pretty fast.

Glenn,
A lot of the kids had gone home for the day when we took the video, so I had to jump in as feeder. Not bad considering we had a washed up Einstein driver, a first time human player and a kid who barely knew how to operate?

I love hearing about how a robot came to be, I guess we'll let everyone in on the origin of the design...

The day of kick-off we came to the conclusion that:

1) a good auto mode could win most of our matches (at the regional level) before anyone touched the sticks.

2) floor loading was a requirement for a few reasons. First off, you needed to floor load to pick up more discs. Secondly, partners would inevitably miss shots and we being able to pick up their missed shots would cut down our cycle times and increase our throughput. Lastly, we noticed that it was very hard to shoot the colored discs in the pyramid or throw them from the loading station. We wanted to be able to take our opponents colored discs out of the game and reduce the number of possible points they could score in the pyramid goal.

3) A level 1 climb was required, however we felt we could mitigate the effects of a level 2 and 3 climb by being a strong disc scorer.

With this in mind we figured we were looking at a fairly complex robot. With lots of single purpose mechanisms. After our team meeting Kiet and I went down the street to a restaurant to discuss the game further. When we arrived, he came up to me and said "You know what we need? We need a 67 arm!". He was referring to 67's utility arm from 2012. At first I thought he was joking and then after a few minutes of talking about it, we realized it wasn't that bad of an idea. When we sat down we talked about how the arm could be used to pick up discs, tilt the shooter, hang, etc. Suddenly our list of mechanisms went from 8 or 9 to 5. Over the next few days we started working on individual parts of the arm (floor loader/funnel, magazine/feeder, shooter, etc). About mid way through week 2 all of these prototypes had been integrated together and worked pretty well together, so this design was given the green light.
This is literally the exact same set of requirements and conversation that went down on 2495. Feels good knowing the team did something similar to an FRC elite!

The robot is beautiful as always and I'm excited to see your autonomous modes. We'll be striving to deliver some 4+ disk autons as well, it'll just be harder with the single file intake.

Best of luck Jon, Kiet, and the crew!
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  #37   Spotlight this post!  
Unread 20-02-2013, 17:28
Lil' Lavery Lil' Lavery is offline
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Re: Team 1538 Proudly Presents: Daisy Thunder

So, what happened to that 30-pt climber prototype?
  #38   Spotlight this post!  
Unread 20-02-2013, 19:24
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Re: Team 1538 Proudly Presents: Daisy Thunder

Quote:
Originally Posted by kiettyyyy View Post
Yes, it does hang, just wasn't featured during the photoshoot and SVT.

It'll be a part of our 30 lb allowance.

As for the shooter feeder, it's a drum that has a surface speed of ~150" per second and a roller that assists the feeding process, which is placed on top of the frisbee. This allows us to "rapid fire" frisbees.
Looking at that, how did you account for initial decelleration at shot time? We found we had to wait ~700 Milliseconds in order to get the wheels to ramp up to full power. I apologize if that was covered in the video, my internet currently cannot load it....
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  #39   Spotlight this post!  
Unread 20-02-2013, 20:39
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Thumbs up Re: Team 1538 Proudly Presents: Daisy Thunder

I am so jelly of that ground retrieval system! I really wish we had thought of that. It's simple, yet effective!
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  #40   Spotlight this post!  
Unread 20-02-2013, 21:23
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Re: Team 1538 Proudly Presents: Daisy Thunder

I'm glad you guys got that issue with the feeder bending worked out! It was great to see you at Mission Bay, I always love your bots. We finally figured out that the key in our loader was gone, and now our loader/hopper doesn't have jamming issues. I can't wait for SD!
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  #41   Spotlight this post!  
Unread 20-02-2013, 21:45
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Re: Team 1538 Proudly Presents: Daisy Thunder

Truly impressive! You guys are amazing. You give our very rookie (even though we are second year) team something to aspire to. Good luck this year!
  #42   Spotlight this post!  
Unread 09-04-2013, 21:08
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Re: Team 1538 Proudly Presents: Daisy Thunder

I think your pictures are broken.
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