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-   -   pic: 245 Teaser (http://www.chiefdelphi.com/forums/showthread.php?t=53447)

Q. Sheets 04-02-2007 17:20

pic: 245 Teaser
 

Cpt_Dave_Lister 04-02-2007 17:21

Re: pic: 245 Teaser
 
My guess:

A contraption for the ramp.

Gabe 04-02-2007 17:23

Re: pic: 245 Teaser
 
What a great idea! Using a cam for lifting against the ground is a unique way of levitating robots.

pheadxdll 04-02-2007 17:27

Re: pic: 245 Teaser
 
Brilliant idea! That's a pretty smart way to get some lift.

Lil' Lavery 04-02-2007 17:37

Re: pic: 245 Teaser
 
Reminds me of 16's cams in 2004.


Dylan Gramlich 04-02-2007 17:39

Re: pic: 245 Teaser
 
yeah that was one of our ideas this year.

zander_108 04-02-2007 18:06

Re: pic: 245 Teaser
 
thats brilliant! but i've got some questions for you;

what kinda motor is driving that?
how long does it take to lift?
is it lifting 4" or 12"?
and are you lifting one or two robots?

thanks

psquared89 04-02-2007 19:26

Re: pic: 245 Teaser
 
Quote:

what kinda motor is driving that?
None, our drivetrain simply pulls forward (yeah, it's that strong)
Quote:

how long does it take to lift?
<2 sec, it's just driving forward.
Quote:

Is it lifting 4" or 12"?
12" (for both)
Quote:

and are you lifting one or two robots?
One or two, doesn't matter.

zander_108 04-02-2007 19:36

Re: pic: 245 Teaser
 
wow.. thanks, that really is a incredible design then. :eek:

Rich Ross 04-02-2007 20:22

Re: pic: 245 Teaser
 
Great mechanism! Just toss two of those onto your 2005 bot and you might have similar results to 2005. (or at least one can hope so)

Jay Trzaskos 04-02-2007 22:54

Re: pic: 245 Teaser
 
Wow, I have been talking to my VEX team about using a cam design for grasping the bar. This will be a really great visual aid to show them. Great Idea guys.

JT

65_Xero_Huskie 04-02-2007 22:59

Re: pic: 245 Teaser
 
Hm..seems like other people are using cam's on their robots aswell :p

John Gutmann 04-02-2007 23:02

Re: pic: 245 Teaser
 
I see Team 340.....:D

MishraArtificer 05-02-2007 11:16

Re: pic: 245 Teaser
 
Reminds me of a Traxxas Revo monster truck...

Alex Cormier 05-02-2007 11:49

Re: pic: 245 Teaser
 
delete this message.

Alex Cormier 05-02-2007 11:52

Re: pic: 245 Teaser
 
Quote:

Originally Posted by psquared89 (Post 571795)
12" (for both)

So you drive forward to raise one and then drive backwards ot rasie the other?

Or am i just getting a weird idea.



Quote:

Originally Posted by Jay Trzaskos
Wow, I have been talking to my VEX team about using a cam design for grasping the bar. This will be a really great visual aid to show them. Great Idea guys.

JT

hmm, reminds me of some other thread about vex and possible "team 16" cams...

DanDon 05-02-2007 13:57

Re: pic: 245 Teaser
 
Alex, it seems like if you have the ramps drop off of the front and back of the robot, and all cams are facing the same direction, then driving in one direction would rotate all cams and lift both platforms.

Ericgehrken 05-02-2007 14:37

Re: pic: 245 Teaser
 
That looks like Andy Mark Treads, tracked wheels perhaps?

Tom Bottiglieri 05-02-2007 16:28

Re: pic: 245 Teaser
 
This is an amazing idea.

Alex Cormier 05-02-2007 18:02

Re: pic: 245 Teaser
 
Quote:

Originally Posted by dhoizner (Post 572333)
Alex, it seems like if you have the ramps drop off of the front and back of the robot, and all cams are facing the same direction, then driving in one direction would rotate all cams and lift both platforms.

ahh yes, you would be correct, i was reading this at the time of break from class as which i woke up at 5am to get from my house to class this morning.

it actually is a very nice simple idea.

kramarczyk 05-02-2007 19:54

Re: pic: 245 Teaser
 
So how much pulling force do you need to get the lift done?

MattLi 06-02-2007 20:37

Re: pic: 245 Teaser
 
Not much, My guess is about 10-20 lbs of pulling/robot I'm guessing. I could pull it with just my arms (I'm not a very strong person).

Wedge34 07-02-2007 15:57

Re: pic: 245 Teaser
 
what happens when the power goes off?

MattLi 07-02-2007 20:03

Re: pic: 245 Teaser
 
Unless the robot suddenly moves/jerks when the power is shut off then we won't have any problem (yes that's right there's no electricity involved).

kramarczyk 07-02-2007 21:10

Re: pic: 245 Teaser
 
Quote:

Originally Posted by MattLi (Post 573240)
Not much, My guess is about 10-20 lbs of pulling/robot I'm guessing. I could pull it with just my arms (I'm not a very strong person).

How much weight was on the ramp at the time?

Q. Sheets 08-02-2007 18:48

Re: pic: 245 Teaser
 
approx. 124 lbs.


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