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  #61   Spotlight this post!  
Unread 02-20-2011, 08:54 PM
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Re: pic: Team 148 - 2011 - Raptor

I was going to post a funny joke, but it may not have been appreciated. Either way, awesome robot once again.
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Last edited by Karthik : 02-20-2011 at 09:00 PM.
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Unread 02-20-2011, 08:58 PM
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Re: pic: Team 148 - 2011 - Raptor

Karthik took down his funny joke so i took down my funny response :/

on the other hand though, Oh dang...
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Last edited by samir13k : 02-20-2011 at 09:50 PM. Reason: Karthik Kanagasabapathy!
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Unread 02-20-2011, 09:08 PM
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Re: pic: Team 148 - 2011 - Raptor

Quote:
Originally Posted by Karthik View Post
I was going to post a funny joke, but it may not have been appreciated. Either way, awesome robot once again.
i wanna hear, i wanna hear
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Unread 02-20-2011, 09:28 PM
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Re: pic: Team 148 - 2011 - Raptor

The mini bot alone will win most of there matches. Great job guys.
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Unread 02-21-2011, 02:30 AM
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Re: pic: Team 148 - 2011 - Raptor

I really have to commend your media crew. The insane amount of hours it must've taken to compile all the pictures and edit the video footage... that is A LOT of work. And every year, the reveal video is breathtaking, and just a bit better than the previous year. Nice work!

The robot looks pretty good too.

My jaw has become quite adept at self-healing, even with all the repeated drops to the floor.

Last edited by PaW : 02-21-2011 at 02:31 AM. Reason: Hey! It's my 100th post!
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Unread 02-21-2011, 11:40 AM
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Question Re: pic: Team 148 - 2011 - Raptor

Hello Robowranglers,
Very impressive robot!
This year, I'm hosting a Robot video unveiling competition. More info can be found here:
http://suburbots2115.wordpress.com/ruv-comp/
I believe your video fits all the requirements. Would you consider joining for the chance to win bragging rights and a PNG image file badge? All you have to do is post your team name and number and a link to your video on this CD thread:
http://www.chiefdelphi.com/forums/sh...threadid=88184
Thank You
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Unread 02-21-2011, 01:35 PM
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Re: pic: Team 148 - 2011 - Raptor

Great music selection and a front-contending bot as usual. I got some interest in creating an offseason nonadrive based on this video, but I'm still fairly certain it's beyond our fabrication abilities. Maybe we'll do a 12fps+ slide drive instead.

Those of us who never saw 67's linkage are left to ponder the way the 148 linkage works. Is it like the locomotive linkages on old-school trains?
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Unread 02-21-2011, 03:07 PM
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Re: pic: Team 148 - 2011 - Raptor

I've got a question. This question isn't a criticism disguised as a question.

What reasons would a team want to deviate from the "standard" method of powering an arm by bolting a sprocket to it and chaining it off a high reduction gearmotor? Basically, what are the advantages of the cool linkage pushing up on your arm as opposed to driving the rotational joint of the arm?

I've never learned much about arms and I don't understand the advantage or disadvantage of either system, other than CG placement.
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Unread 02-21-2011, 03:13 PM
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Re: pic: Team 148 - 2011 - Raptor

Quote:
Originally Posted by Chris is me View Post
I've got a question. This question isn't a criticism disguised as a question.

What reasons would a team want to deviate from the "standard" method of powering an arm by bolting a sprocket to it and chaining it off a high reduction gearmotor? Basically, what are the advantages of the cool linkage pushing up on your arm as opposed to driving the rotational joint of the arm?

I've never learned much about arms and I don't understand the advantage or disadvantage of either system, other than CG placement.

I had the same thoughts, and can't seem to find a reason besides CG.

Defiantly interested to know.

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Unread 02-21-2011, 03:51 PM
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Re: pic: Team 148 - 2011 - Raptor

Quote:
Originally Posted by Chris is me View Post
I've got a question. This question isn't a criticism disguised as a question.

What reasons would a team want to deviate from the "standard" method of powering an arm by bolting a sprocket to it and chaining it off a high reduction gearmotor? Basically, what are the advantages of the cool linkage pushing up on your arm as opposed to driving the rotational joint of the arm?

I've never learned much about arms and I don't understand the advantage or disadvantage of either system, other than CG placement.
CG isn't reason enough?

One other reason is my hatred of chain, but mainly for CG reasons.
I would also suspect this is lighter than an equivalent low-gearbox + chain + sprocket...

Plus... c'mon... DOUBLE FOURBAR!
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Unread 02-21-2011, 04:10 PM
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Re: pic: Team 148 - 2011 - Raptor

Quote:
Originally Posted by JVN View Post
Plus... c'mon... DOUBLE FOURBAR!
HOOWWW DOESS IT WORK??!?!?
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Unread 02-21-2011, 04:33 PM
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Re: pic: Team 148 - 2011 - Raptor

Quote:
Originally Posted by JVN View Post
CG isn't reason enough?

One other reason is my hatred of chain, but mainly for CG reasons.
I would also suspect this is lighter than an equivalent low-gearbox + chain + sprocket...

Plus... c'mon... DOUBLE FOURBAR!

Now I must ask, where does your hatred of chain come from? Honestly The only time i have ever had problems is when it is very very poorly tensioned.

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Unread 02-21-2011, 04:45 PM
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Re: pic: Team 148 - 2011 - Raptor

Quote:
Originally Posted by Bochek View Post
Now I must ask, where does your hatred of chain come from? Honestly The only time i have ever had problems is when it is very very poorly tensioned.

-Bochek
You hit a point in design where you almost get bored, and you have to go further and try new things.

Chain is functional, 148's goals are higher than achieving functionality. There were some benefits (some may say they're small, I disagree) to this design over chain and they designed for that. I imagine never having to break chain, tension chain, deal with chain growing, etc. are pretty nice. I would imagine their goal is to keep making cool, great performing stuff, while never having to do repair or maintenance.
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Unread 02-21-2011, 04:49 PM
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Re: pic: Team 148 - 2011 - Raptor

Oh, my god. Double fourbar! What does it mean?!

Its so vivid!
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Unread 02-21-2011, 04:51 PM
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Re: pic: Team 148 - 2011 - Raptor

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Originally Posted by MasonMM View Post
Oh, my god. Double fourbar! What does it mean?!

Its so vivid!
Lololololol
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