Sneak Preview of HOT BOT, #67
 

Posted by Jim Meyer at 2/12/2001 1:00 PM EST


Engineer on team #67, HOT Team, from Huron Valley Schools and GM Milford Proving Ground.



Just a sneak peek.....

Re: Sneak Preview of HOT BOT, #67
 

Posted by Rich at 2/12/2001 1:07 PM EST


Engineer on team #334, BTHS Knights, from Brooklyn Tech. HS and Con Ed, SIAC Keyspan.


In Reply to: Sneak Preview of HOT BOT, #67
Posted by Jim Meyer on 2/12/2001 1:00 PM EST:



NICE WHEELS!
how did you make the rear (front?) wheels?
is it 4W drive?

ANOTHER limbo-bot?
 

Posted by Joe Johnson at 2/12/2001 1:15 PM EST


Engineer on team #47, Chief Delphi, from Pontiac Central High School and Delphi Automotive Systems.


In Reply to: Sneak Preview of HOT BOT, #67
Posted by Jim Meyer on 2/12/2001 1:00 PM EST:



Looks very nice.

Very clean lines. Elegant.

The omni-directional wheels in the back to allow rotations without scrubbing is a nice touch.

Those front wheels look about a grippy as they can be.

Can't quite work it out, but are there goal grabbers on this beastie?

By the way, your machine looks like it is leaking oil, there is a slick spot beneath the crankcase ;-)

Looks like another great effort by the Proving Ground Gang.

Joe J.

Very elegant
 

Posted by Andy Baker at 2/12/2001 1:46 PM EST


Engineer on team #45, TechnoKats, from Kokomo High School and Delphi Automotive Systems.


In Reply to: Sneak Preview of HOT BOT, #67
Posted by Jim Meyer on 2/12/2001 1:00 PM EST:



Very nice and elegant... the more pictures I see, the more amazed I am by other team's designs.

Great job!

But then again... this is the HOT team. Excellence is expected.

Andy B.

Re: Sneak Preview of HOT BOT, #67
 

Posted by Geoff at 2/12/2001 1:52 PM EST


Student on team #192, Gunn Robotics Team, from Gunn High School.


In Reply to: Sneak Preview of HOT BOT, #67
Posted by Jim Meyer on 2/12/2001 1:00 PM EST:



: Just a sneak peek.....

Is the arm tall enough to put a big ball onto a goal when it is balanced on the ramp? And can you power those holonomic wheels with any effect?

why do it if no power?
 

Posted by Joe Johnson at 2/12/2001 2:20 PM EST


Engineer on team #47, Chief Delphi, from Pontiac Central High School and Delphi Automotive Systems.


In Reply to: Re: Sneak Preview of HOT BOT, #67
Posted by Geoff on 2/12/2001 1:52 PM EST:



I can't judge from the picture the answer to the first question, but the answer to the second is almost certainly, yes.

Why would they have those beauties if it was only acting as a fancy caster wheel?

Beyond this, I know that the HOTBOT's have had powered holonomic wheels for years now (since Ladder Logic, I believe).

Why stop now when you've got a good thing going? There is a very strong bias toward doing what you know works. Especially when you only have 6 weeks to noodle it out.

I will tell you, it was a tough choice trying to decide to give up the Swerve (which we have grown to love) or the Limbo.

I am sure that this was the same position WildStang was in when they had to buck up the courage to abandon their awe inspiring, never ending, raise the roof, nested lifts last year.

Which path did Chief Delphi take?

Time will tell...

Joe J.

Re: why do it if no power?
 

Posted by Jim Meyer at 2/12/2001 3:16 PM EST


Engineer on team #67, HOT Team, from Huron Valley Schools and GM Milford Proving Ground.


In Reply to: why do it if no power?
Posted by Joe Johnson on 2/12/2001 2:20 PM EST:



: Why would they have those beauties if it was only acting as a fancy caster wheel?

We used them as fancy casters last year for packaging purposes. They weren't nearly as elaborate as these though. We tried driving them but it was too much for the Drill motors to take at our low gear ratio. We ended up keeping the speed and loosing the driven casters.

: I will tell you, it was a tough choice trying to decide to give up the Swerve (which we have grown to love) or the Limbo.

Will the Chief be limboing????? Has the CD6 design influenced Dr. Joe's standing on his bet with Erin? I thought we were supposed to be seeing pictures or at least renderings by now? How much longer do we have to wait to see this 6 wheel drive limbo machine? :-)

Re: Sneak Preview of HOT BOT, #67
 

Posted by Kyle Fenton at 2/12/2001 2:43 PM EST


Student on team #121, Islanders, from Middletown High School and NUWC.


In Reply to: Sneak Preview of HOT BOT, #67
Posted by Jim Meyer on 2/12/2001 1:00 PM EST:



Nice Robot, A couple of questions

1. Can the big arm get to the goals while they are
on the ramp balancing?

2. Can you pick up small black balls.

Nice Job

Kyle

Re: Sneak Preview of HOT BOT, #67
 

Posted by Kyle Fenton at 2/12/2001 2:49 PM EST


Student on team #121, Islanders, from Middletown High School and NUWC.


In Reply to: Sneak Preview of HOT BOT, #67
Posted by Jim Meyer on 2/12/2001 1:00 PM EST:



Nice Robot, A couple of questions

1. Can the big arm get to the goals while they are
on the ramp balancing?

2. Can you pick up small black balls.

Nice Job

Kyle

Answering some questions....
 

Posted by Jim Meyer at 2/12/2001 2:57 PM EST


Engineer on team #67, HOT Team, from Huron Valley Schools and GM Milford Proving Ground.


In Reply to: Sneak Preview of HOT BOT, #67
Posted by Jim Meyer on 2/12/2001 1:00 PM EST:



Yes we can power our holomonic wheels (we call them omni-casters) and they develop enough traction to make it worth powering them. This year our side rollers have increased to 2" in diameter to keep Dr. Joe happy. :-)

Both of our wheels are mostly constructed from CNC milled 1/4" aluminum plate.

Re: Sneak Preview of HOT BOT, #67
 

Posted by Rob Zeuge at 2/12/2001 6:59 PM EST


Coach on team #121, Rhode Warrior, from University of Rhode Island and Naval Undersea Warfare Center.


In Reply to: Sneak Preview of HOT BOT, #67
Posted by Jim Meyer on 2/12/2001 1:00 PM EST:



Hmm...

This looks like the kind of 'bot that would make a perfect ally for Rhode Warrior 2001...

Limbo or bar-jumping bots are gonna be hot this year (pun intended).

Great job and see you all at the competition!!

Rob Zeuge
rzeu0470@postoffice.uri.edu

Re: Sneak Preview of HOT BOT, #67
 

Posted by Chris Orimoto at 2/12/2001 7:41 PM EST


Student on team #368, Kika Mana, from McKinley High School and Nasa Ames/Hawaiian Electric/Weinberg Foundation.


In Reply to: Sneak Preview of HOT BOT, #67
Posted by Jim Meyer on 2/12/2001 1:00 PM EST:



Ya know, I wish we were going to the nationals because
I would love to be partnered with a 'bot like that. I
must say, VERY NICE.

I thought our wheels were nice, at first, until I saw
these...(if you want to see ours, you can check our
website...)

Anyway, great job on this one!

Chris,

Nice Mill
 

Posted by Brian at 2/12/2001 8:38 PM EST


Student on team #670, HHSRC, from Homestead High School.


In Reply to: Sneak Preview of HOT BOT, #67
Posted by Jim Meyer on 2/12/2001 1:00 PM EST:



I like your robot but I must say that is one nice mill.

where's the mop?
 

Posted by Anton Abaya at 2/13/2001 12:22 AM EST


Coach on team #419, Rambots, from UMass Boston / BC High and NONE AT THE MOMENT! :(.


In Reply to: Sneak Preview of HOT BOT, #67
Posted by Jim Meyer on 2/12/2001 1:00 PM EST:



: Just a sneak peek.....

i kinda drooled all over the place.

good job hot team. like last year, i will bow at your pit.

-anton

ps. thanks for the casters last year.

couple more questions
 

Posted by Ken Leung at 2/13/2001 5:16 AM EST


Student on team #192, Gunn Robotics Team, from Henry M. Gunn Senior High School.


In Reply to: Sneak Preview of HOT BOT, #67
Posted by Jim Meyer on 2/12/2001 1:00 PM EST:



Just wonder about the details of the robot...

It seems to me the robot is going to be pretty light, considering the simple design and the single arm. About how heavy is your robot? May I guess around 80 lbs?

And it looks like the Van Door on the arm is directly connected on the joint. So, no gear reduction to keep it slow and strong?

The end of the gripper seems to be pretty thin and light, how well is it in gripping balls? Seems like you need the end to grip the balls right at the middle to get a good hold.

And finally, the robot looks like it can fold up and go under the bar. And secret under the drive train in between the two wheels that will get the robot over the 4x6 easily, or it's doing it quite smoothly using the two wheels?

Sorry, I don't want to sounds like am criticizing... just want to gather some info, that's all.

By the way, this robot looks REALLY REALLY HOT!!!

Re: couple more questions
 

Posted by Jim Meyer at 2/13/2001 9:03 AM EST


Engineer on team #67, HOT Team, from Huron Valley Schools and GM Milford Proving Ground.


In Reply to: couple more questions
Posted by Ken Leung on 2/13/2001 5:16 AM EST:



: About how heavy is your robot? May I guess around 80 lbs?

Right now it's at ~110. No guarantees it will stay there.

: And it looks like the Van Door on the arm is directly connected on the joint.

We know better than to do that.

: The end of the gripper seems to be pretty thin and light, how well is it in gripping balls? Seems like you need the end to grip the balls right at the middle to get a good hold.

Our gripper is made of 1" square ~1/8" wall thickness extruded aluminum square tubing. It's not very flimsy. We do not need to grip the balls right at their center. Stop by our pits if you get the chance and check out our gripper. I think it's pretty interesting, but then again I designed it, so I naturally would. One thing I will say is that the pneumatic cylinder that runs our gripper was not hooked up for this picture.

At this point I want to stay away from discusing abilities. After our first regional I'll be more than willing to talk what our robot can and can't do. I say this mostly because I don't want to unintentionally mislead anyone.

Re: couple more questions
 

Posted by Mike Gray at 2/13/2001 9:08 AM EST


Engineer on team HOT from Huron Valley Schools sponsored by GM Milford Proving Ground.


In Reply to: couple more questions
Posted by Ken Leung on 2/13/2001 5:16 AM EST:



: Just wonder about the details of the robot...

: It seems to me the robot is going to be pretty light, considering the simple design and the single arm. About how heavy is your robot? May I guess around 80 lbs?

It weighs 108 pounds without the skin.

: And it looks like the Van Door on the arm is directly connected on the joint. So, no gear reduction to keep it slow and strong?

Gear reduction at the "elbow" joint is 3:1. "Shoulder" joint is 6:1, and driven with window motors.

: The end of the gripper seems to be pretty thin and light, how well is it in gripping balls? Seems like you need the end to grip the balls right at the middle to get a good hold.

: And finally, the robot looks like it can fold up and go under the bar. And secret under the drive train in between the two wheels that will get the robot over the 4x6 easily, or it's doing it quite smoothly using the two wheels?

The powertrain fits within a wheel diameter. Drill motors in the front (2-speed final), FP motors in the rear. The final stage has been removed from the FP motors, and the speed adjusted in software.

: Sorry, I don't want to sounds like am criticizing... just want to gather some info, that's all.

: By the way, this robot looks REALLY REALLY HOT!!!

Thanks, from the HOT team.

Very nice.....
 

Posted by Andrew Fleming at 2/13/2001 3:34 PM EST


Coach on team #221, MI Roboworks, from Michigan Technological University and MI Roboworks / MTU.


In Reply to: Sneak Preview of HOT BOT, #67
Posted by Jim Meyer on 2/12/2001 1:00 PM EST:



Just checking up on my old team....

Nice work, as always! Best of luck, and I'll see you all at the Great Lakes Regional.

Andy Fleming
MI Roboworks
Team # 221
Electronics/Programming