pic: Team 1714's 2011 Robot
 

Re: pic: Team 1714's 2011 Robot
 

Hey could you post some specs, I would really like to know the weight on this thing.

Re: pic: Team 1714's 2011 Robot
 

Wow! :yikes:

It looks like the arm extension is actuated with a pneumatic cylinder, but I can't figure out what makes the arm rotate. Is another pneumatic cylinder used for this purpose, or does a motor drive it?

Re: pic: Team 1714's 2011 Robot
 

Yes, a single motor drives the arm. The cylinder is a counterbalance.
The weight is very close to 120 lbs

Re: pic: Team 1714's 2011 Robot
 

It's CLEAR! Now it's time to fire up the motors and get going!

Anyway. Sorry about the really bad pun. It looks awesome and I hope to see it in action at Milwaukee.

Re: pic: Team 1714's 2011 Robot
 

Does this robot have a jellyfish based name?

Re: pic: Team 1714's 2011 Robot
 

1714 works near a lexan factory, so their robots are mostly built of lexan!

What's better than robotics? :-)

Re: pic: Team 1714's 2011 Robot
 

For some reason, I am reminded of Wonder Woman's invisible plane. Neat design!

Re: pic: Team 1714's 2011 Robot
 

I have always ALWAYS wanted to build a polycarbonate robot. Great job.

Can you explain the cylinder as a counterbalance? Is it in a closed loop system?

Re: pic: Team 1714's 2011 Robot
 

1714's done it every year since their founding year. In 2006 and 2007, they used kitbot rails, but since then the robots have not used structural metal.

Re: pic: Team 1714's 2011 Robot
 

The cylinder is mechanical, there is no programming involved. When the compressor turns on, it is pressurized and ready to go. There is a relief valve to let air out when necessary.

However, the arm motor is run by a closed PD loop for preset heights.

Re: pic: Team 1714's 2011 Robot
 

So you set the regulator to the pressure you want and just leave the solenoid in one position without controlling it? Interesting and innovative solution.

Re: pic: Team 1714's 2011 Robot
 

I'm surprised noone has mentioned this yet but OBVIOUSLY they had to make their minibot with polycarb. :D lol

Re: pic: Team 1714's 2011 Robot
 

They work out of "American Acrylics" so its Acrylic not Polycarbonate. Only thing I'm wondering about is the minibot, Polycarbonate is allowed but, rules say nothing about Acrylic. Unless I'm wrong and they use both now.

Re: pic: Team 1714's 2011 Robot
 

While 1714 works out of American Acrylics, all robot parts are made of polycarbonate. Acrylic would quickly, quickly break.