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-   -   pic: 72 lbs so far. (http://www.chiefdelphi.com/forums/showthread.php?t=90786)

joeweber 02-02-2011 18:49

pic: 72 lbs so far.
 

DarkFlame145 02-02-2011 18:50

Re: pic: 72 lbs so far.
 
Looks great!, I find it interesting that your team has gone with belt drive, don't see that too often. Best of luck this season!!!!!

Madison 02-02-2011 19:03

Re: pic: 72 lbs so far.
 
How many air storage tanks do you plan to use? What's the ratio between stored air and cylinder volume?

MagiChau 02-02-2011 19:04

Re: pic: 72 lbs so far.
 
I like the look of those pneumatic cylinders attached to that interesting looking mechanism. Wished you went to West Michigan again so I could see that robot in person.

Bruceb 02-02-2011 19:18

Re: pic: 72 lbs so far.
 
Are those 1.5 inch pistons? If so, I think you have way overkill and a smaller piston would lift a lot quicker. Otherwise, looks like a great bot. Wish I had thought of a pneumatic lifter. I like the roller guides on the back.
Bruce

klmx30302 02-02-2011 19:48

Re: pic: 72 lbs so far.
 
Do i see a piston driving a piston driving a piston x2? You're going to need so many storage tanks...

IndySam 02-02-2011 20:13

Re: pic: 72 lbs so far.
 
Three stacked cylinders, just the kind of pneumatics I love. You can achieve 9 different levels of lift.

You could lift 200lbs with that setup. The good thing is they can run them at reduced pressure and still have more than enough lift.

Also if the long cylinders are only used for something like the occasional floor pickup, the air can be stretched even further.

I would be more inclined to put the big cylinder on the bottom.

maltz1881 02-02-2011 20:19

Re: pic: 72 lbs so far.
 
If Joe had his way there would be even more!!! **** said as I walk away shaking my head!!**** I will admit when I have watched it in motion it flys!!:ahh:

klmx30302 02-02-2011 21:00

Re: pic: 72 lbs so far.
 
Just one more thought, you might want to get one of the newer compressors that move 20% more air and have about 1/2 the weight of the old ones. We bought one last week (still waiting for delivery) the model is the viair 090c, here is a link to the only place that sells it that has decent information: http://www.suspensionconnection.com/...con/00090.html

Alex Cormier 02-02-2011 21:21

Re: pic: 72 lbs so far.
 
Quote:

Originally Posted by klmx30302 (Post 1014541)
Just one more thought, you might want to get one of the newer compressors that move 20% more air and have about 1/2 the weight of the old ones. We bought one last week (still waiting for delivery) the model is the viair 090c, here is a link to the only place that sells it that has decent information: http://www.suspensionconnection.com/...con/00090.html

Slightly cheaper here.


:p

klmx30302 02-02-2011 21:38

Re: pic: 72 lbs so far.
 
Quote:

Originally Posted by Alex Cormier (Post 1014557)
Slightly cheaper here.


:p

Found that also, just posted the other link because that is where our team ordered from. We ordered the new compressor because of its increased air movement, but mostly because the 2 pound less it is is 2 pounds of lead we can put where ever we want to help balance the robot if necessary (or just save 2 pounds). And the only reason I mentioned it was because that setup looks like it will use a huge amount of air. Just counted and there's 9 pistons on that chassis, I am glad our bot only uses 3 (1 for manipulation, 2 for minibot deployment).

joeweber 02-02-2011 21:38

Re: pic: 72 lbs so far.
 
1 Inch cylinders would have worked but the lift was sticking randomly and I wanted to make sure that it would not stick durring competition. Start position is floor pick up and bottom row delivery, the 4 in cylider gives us human delivery, the 4 plus the 8 gives us the center row, and 4 + 8 + 12 gives us the top row with the push of the button. I will use as many tanks as I gan get. Too bad I don't have a few of the new tanks.

BJC 02-02-2011 22:07

Re: pic: 72 lbs so far.
 
I'm willing to bet that the wheels sticking out of the frame on pistons are to line up to the base of the tower before minibot deployment. Very Cool.

sanddrag 02-02-2011 22:08

Re: pic: 72 lbs so far.
 
What are the Vex wheels for?

D.Allred 02-02-2011 22:25

Re: pic: 72 lbs so far.
 
Quote:

Originally Posted by sanddrag (Post 1014602)
What are the Vex wheels for?

Looks like a centering device to align the robot with the tower.


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