pic: 245 Teaser

[Q. Sheets]

[cdm-description=photo]26662[/cdm-description]

[Cpt_Dave_Lister]

My guess:

A contraption for the ramp.

[Gabe]

What a great idea! Using a cam for lifting against the ground is a unique way of levitating robots.

[pheadxdll]

Brilliant idea! That's a pretty smart way to get some lift.

[Lil' Lavery]

Reminds me of 16's cams in 2004.
http://www.chiefdelphi.com/media/img/ed3/ed3fc3383b695f6f18d53128f1006ec3_m.jpg
http://www.invisiblerobot.com/robotics/robot_b56h/p1015410.jpg

[Dylan Gramlich]

yeah that was one of our ideas this year.

[zander_108]

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]

what kinda motor is driving that?
None, our drivetrain simply pulls forward (yeah, it's that strong)
how long does it take to lift?
<2 sec, it's just driving forward.
Is it lifting 4" or 12"?
12" (for both)
and are you lifting one or two robots?
One or two, doesn't matter.

[zander_108]

wow.. thanks, that really is a incredible design then. :eek:

[Rich Ross]

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]

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]

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

[John Gutmann]

I see Team 340.....:D

[MishraArtificer]

Reminds me of a Traxxas Revo monster truck...

[Alex Cormier]

delete this message.

[Alex Cormier]

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.



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]

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]

That looks like Andy Mark Treads, tracked wheels perhaps?

[Tom Bottiglieri]

This is an amazing idea.

[Alex Cormier]

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]

So how much pulling force do you need to get the lift done?

[MattLi]

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]

what happens when the power goes off?

[MattLi]

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]

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]

approx. 124 lbs.