Chief Delphi

Chief Delphi (http://www.chiefdelphi.com/forums/index.php)
-   Extra Discussion (http://www.chiefdelphi.com/forums/forumdisplay.php?f=68)
-   -   pic: Robot Attack! (http://www.chiefdelphi.com/forums/showthread.php?t=58558)

Madison 28-08-2007 16:56

Re: pic: Robot Attack!
 
Quote:

Originally Posted by Billfred (Post 640268)
Close, but no cigar. Engadget reported on it back in January--it's apparently a guy with an industrial robot, a chair with a safety harness, and more guts than I have.

Interesting -- I'd be remarkably surprised if it weren't somehow related to the KUKA Robocoaster, though. The Engadget article doesn't seem to have information about it one way or another.

Red Mage 28-08-2007 19:37

Re: pic: Robot Attack!
 
I think this picture would make the best team shirt ever! Much better than our rolling, flaming balls of '06, or our burnt cheese doodle.

Otaku 28-08-2007 19:42

Re: pic: Robot Attack!
 
I read "Burnt Cheese Doodle" as "Burnt Cheese Diode".

I have a new T-Shirt design idea...

BigJ 28-08-2007 22:49

Re: pic: Robot Attack!
 
I read "burnt cheese doodle" as "burnt cheese dongle".

A cheese dongle? mmmm, 100% Wisconsin autonomous.

Red Mage 29-08-2007 15:45

Re: pic: Robot Attack!
 
Right, that's just weird.

AndyB 29-08-2007 16:25

Re: pic: Robot Attack!
 
Quote:

Originally Posted by BigJ (Post 640305)
I read "burnt cheese doodle" as "burnt cheese dongle".

A cheese dongle? mmmm, 100% Wisconsin autonomous.

Seconded.

Qbranch 30-08-2007 20:38

Re: pic: Robot Attack!
 
THAT IS SO NOT SAFE!!!!!!!

You realize when you 'ride' a robot, your putting your life in the hands of a servo loop which depends on just ONE encoder to give feedback about the motor's position. The loss of an encoder, with today's high high update rates (some high as 20KHz (standard yaskawa servo modulation frequency)) integrator windup happens in the blink of an eye.

So... that effortless power that lifts you up in the air and makes you giggle... could also just as easily slam you into the ground at ~50mph. I may stick my head in a CNC machine... but thats as far as i'm willing to trust a servo. Heck, 'fly by wire' steering still has a mechanical override... automakers know servos are too risky for something like steering. Its just that people who make these robotic coasters havent put the 'what if it hits a bus of nuns' test to their robot coasters like the automakers have.

Sorry to be all uptight... but i've seen an Adept 4 axis arm lose an encoder at work... JT1 (the main joint) spun around 2 times in about .5 seconds. If anyone would have been in the cell they would have been dead (not just dead, like DEAD)... and that was just with people in the vicinity of the robot, let alone RIDING it. I know its tempting... servos are so good anymore it makes the motion seem so serene and controlled, but remember, in free range, theyre just motors.

PLEASE don't do this... ok i'll get off my soap box now. :o

-q

Protronie 31-08-2007 07:15

Re: pic: Robot Attack!
 
Quote:

Originally Posted by Qbranch (Post 640514)
THAT IS SO NOT SAFE!!!!!!!

You realize when you 'ride' a robot, your putting your life in the hands of a servo loop ...

So... that effortless power that lifts you up in the air and makes you giggle... could also just as easily slam you into the ground at ~50mph. I may stick my head in a CNC machine... but thats as far as i'm willing to trust a servo.

Sorry to be all uptight... but i've seen an Adept 4 axis arm lose an encoder at work... JT1 (the main joint) spun around 2 times in about .5 seconds. If anyone would have been in the cell they would have been dead (not just dead, like DEAD)... and that was just with people in the vicinity of the robot, let alone RIDING it. I know its tempting... servos are so good anymore it makes the motion seem so serene and controlled, but remember, in free range, theyre just motors.

PLEASE don't do this... ok i'll get off my soap box now. :o

-q

Like you've never hitched a ride on one of your contraptions .... :ahh:

Otaku 01-09-2007 01:26

Re: pic: Robot Attack!
 
I've ridden our team's bot... As a demonstration of it's power. I'm easily the heaviest person on our team and while standing on the 'bot, and it accelerated just like usual.

But then agian, that was more me putting my safety in the hands of our drivers and not a program (well, a program too, but you know what I mean)

Qbranch 01-09-2007 06:59

Re: pic: Robot Attack!
 
Quote:

Originally Posted by Otaku (Post 640626)
I've ridden our team's bot... As a demonstration of it's power. I'm easily the heaviest person on our team and while standing on the 'bot, and it accelerated just like usual.

But then agian, that was more me putting my safety in the hands of our drivers and not a program (well, a program too, but you know what I mean)

FIRST robots aren't as (rapidly) dangerous as industrial robots (Kuka, Fanuc, Adept, etc.) like there are in the videos previously posted... Where a first robot might have a total drive power of a couple horsepower, the six axis robots with a high enough payload to move people routinely have 5HP+ in its axes... not to mention the industrial robotic arms themselves weigh in in the multiples of tons, not 120lbs.

Well ok, just being a safety concerned person. I can't make you not do it, but if you do... I told you so!

-q


All times are GMT -5. The time now is 04:31.

Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi