Robot Arm C

Locked
iwonder
Admin Emeritus
Admin Emeritus
Posts: 1112
Joined: May 10th, 2011, 8:25 pm
Division: Grad
State: TX
Has thanked: 0
Been thanked: 0

Re: Robot Arm C

Post by iwonder » September 24th, 2011, 7:09 pm

What does everything think the chances of getting a perfect score at national's being? It seems you would have to move rather fast and accurate to move everything in time.
'If you're the smartest person in the room, you're in the wrong room' - Unknown

jander14indoor
Member
Member
Posts: 1585
Joined: April 30th, 2007, 7:54 am
Has thanked: 0
Been thanked: 2 times

Re: Robot Arm C

Post by jander14indoor » September 25th, 2011, 5:14 am

Based on performance at the national trial, high. One team did it in practice and was close during the official run. But I don't THINK it will be like junkyard a few years back where perfect scores were common.

One opinion.

Jeff Anderson
Livonia, MI

chalker7
Member
Member
Posts: 612
Joined: September 27th, 2010, 5:31 pm
Division: Grad
State: HI
Has thanked: 0
Been thanked: 1 time

Re: Robot Arm C

Post by chalker7 » September 25th, 2011, 6:11 am

jander14indoor wrote:Based on performance at the national trial, high. One team did it in practice and was close during the official run. But I don't THINK it will be like junkyard a few years back where perfect scores were common.

One opinion.

Jeff Anderson
Livonia, MI
I agree. I don't think they'll be common, but I do think most (if not all) of the medalling teams will have perfect scores. So 5 or 6 would be my prediction.
National event supervisor - Wright Stuff, Helicopters
Hawaii State Director

chalker
Member
Member
Posts: 2106
Joined: January 9th, 2009, 7:30 pm
Division: Grad
State: OH
Has thanked: 1 time
Been thanked: 52 times

Re: Robot Arm C

Post by chalker » September 25th, 2011, 6:23 am

jander14indoor wrote:Based on performance at the national trial, high. One team did it in practice and was close during the official run. But I don't THINK it will be like junkyard a few years back where perfect scores were common.

One opinion.

Jeff Anderson
Livonia, MI

And a rather expert opinion at that;)

Keep in mind that the playing field is about 15% smaller this year, thus the objects don't need to be moved as far (which I assume would reduce the amount of time needed)

Student Alumni
National Event Supervisor
National Physical Sciences Rules Committee Chair

starpug
Admin Emeritus
Admin Emeritus
Posts: 932
Joined: April 5th, 2008, 6:51 pm
Division: Grad
State: ME
Location: Waterville, Maine
Has thanked: 0
Been thanked: 0

Re: Robot Arm C

Post by starpug » September 25th, 2011, 8:22 am

I don't think there are many building events where you can not get a perfect score and still medal at nationals.

The question then is, is someone going to figure out a way to be perfect with only 1 motor. If that ends up being impossible, but I'm sure atleast one of the juggernauts will figure it out, than it becomes who will be good enough with Solidworks, CAD or whatever program and have the best technical documentation.
Get your facts first, then you can distort them as you please. - Mark Twain

iwonder
Admin Emeritus
Admin Emeritus
Posts: 1112
Joined: May 10th, 2011, 8:25 pm
Division: Grad
State: TX
Has thanked: 0
Been thanked: 0

Re: Robot Arm C

Post by iwonder » September 25th, 2011, 8:34 am

I know this isnt a place for clarification... However... What would define a penumatic or hydrolic motor? Would it have to produce rotational forces, or would any kind of force qualify it as a motor?

chalker7
Member
Member
Posts: 612
Joined: September 27th, 2010, 5:31 pm
Division: Grad
State: HI
Has thanked: 0
Been thanked: 1 time

Re: Robot Arm C

Post by chalker7 » September 25th, 2011, 8:50 am

starpug wrote:I don't think there are many building events where you can not get a perfect score and still medal at nationals.

The question then is, is someone going to figure out a way to be perfect with only 1 motor. If that ends up being impossible, but I'm sure atleast one of the juggernauts will figure it out, than it becomes who will be good enough with Solidworks, CAD or whatever program and have the best technical documentation.
With the current set of rules, only Robot Arm has a "perfect score." All of the others are theoretically (although of course not practically) unlimited.
National event supervisor - Wright Stuff, Helicopters
Hawaii State Director

starpug
Admin Emeritus
Admin Emeritus
Posts: 932
Joined: April 5th, 2008, 6:51 pm
Division: Grad
State: ME
Location: Waterville, Maine
Has thanked: 0
Been thanked: 0

Re: Robot Arm C

Post by starpug » September 25th, 2011, 10:01 am

chalker7 wrote:
starpug wrote:I don't think there are many building events where you can not get a perfect score and still medal at nationals.

The question then is, is someone going to figure out a way to be perfect with only 1 motor. If that ends up being impossible, but I'm sure atleast one of the juggernauts will figure it out, than it becomes who will be good enough with Solidworks, CAD or whatever program and have the best technical documentation.
With the current set of rules, only Robot Arm has a "perfect score." All of the others are theoretically (although of course not practically) unlimited.
I was of course referring to events like Robot Ramble, Trajectory, Mission Possible, Junkyard, etc where a perfect score is possible.
Get your facts first, then you can distort them as you please. - Mark Twain

User avatar
Littleboy
Member
Member
Posts: 373
Joined: March 14th, 2010, 4:53 pm
Division: C
State: MI
Location: Between the Earth's Core and Mars.
Has thanked: 0
Been thanked: 0

Re: Robot Arm C

Post by Littleboy » September 29th, 2011, 5:04 pm

Guys, I think I just figured out a way to get all points using 1 motor.

User avatar
ichaelm
Member
Member
Posts: 440
Joined: October 23rd, 2008, 3:10 pm
Division: Grad
State: PA
Location: CWRU, Cleveland, OH
Has thanked: 0
Been thanked: 0
Contact:

Re: Robot Arm C

Post by ichaelm » September 29th, 2011, 5:52 pm

First of all, I just want to say that I'm impressed by the amount of useful discussion in this thread! I noticed that in my team, at least a third of all our new freshmen intend to do Robot Arm, since the idea of building robots must appeal to a lot of people. Looks like that happened around the country too!

One thing I've been wondering about is the definition of a motor. I intend to submit a clarification as soon as possible, but until then, I'll post here. Obviously, a rotating axle powered by electromagnets is a motor. But, what about just a permanent magnet that can be moved by an electromagnet, in a linear way? Or what about a piece of ferrous metal moved by an electromagnet? Or an electromagnet that can pick up nails? All of those add a degree of freedom to the robot, but I doubt that all of them count as motors.

Locked

Return to “2012 Build Events”

Who is online

Users browsing this forum: No registered users and 1 guest