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-   -   pic: REV Robotics Simple Lift (http://www.chiefdelphi.com/forums/showthread.php?t=132149)

Greg Needel 05-01-2015 10:43

pic: REV Robotics Simple Lift
 

ouellet348 05-01-2015 10:44

Re: pic: REV Robotics Simple Lift
 
I like it. Doing simple things really well > doing a few things inconsistently.

StAxis 05-01-2015 12:26

Re: pic: REV Robotics Simple Lift
 
This is a really good option for teams without a lot of resources. Being able to help cooperate will be very useful.

asid61 05-01-2015 21:19

Re: pic: REV Robotics Simple Lift
 
I would recommend lifting the stack and skiding the previous tote underneath it to increase stack height and decrease elevator size.

fireXtract 06-01-2015 09:47

Re: pic: REV Robotics Simple Lift
 
Quote:

Originally Posted by asid61 (Post 1422341)
I would recommend lifting the stack and skiding the previous tote underneath it to increase stack height and decrease elevator size.

Could you expand on that? I'm curious where you are saying to slide the previous tote.

asid61 06-01-2015 10:04

Re: pic: REV Robotics Simple Lift
 
Quote:

Originally Posted by fireXtract (Post 1422628)
Could you expand on that? I'm curious where you are saying to slide the previous tote.

You take the stack you are in possesion of, lift it up, and move into another tote. Then place your stack on top of the new tote, and pick the whole thing up from the bottom again.

ouellet348 06-01-2015 10:09

Re: pic: REV Robotics Simple Lift
 
To clarify the tote stack lift:

If you lift the bottom tote in an existing stack, so long as your center of gravity is stable enough, you could move a stack of theoretically any height onto a single tote thus reducing the amount of height your elevator would require.

The trade off here is high loads and thus a more stable center of gravity is required.

fireXtract 06-01-2015 15:46

Re: pic: REV Robotics Simple Lift
 
Quote:

Originally Posted by asid61 (Post 1422639)
You take the stack you are in possesion of, lift it up, and move into another tote. Then place your stack on top of the new tote, and pick the whole thing up from the bottom again.

I agree with that method of lifting totes. What material would be durable yet flexible enough for the snapping side pieces?

Amar Shah 06-01-2015 18:27

Re: pic: REV Robotics Simple Lift
 
Quote:

Originally Posted by fireXtract (Post 1422930)
I agree with that method of lifting totes. What material would be durable yet flexible enough for the snapping side pieces?

It could be rigid, but hinged and spring loaded so that it can only bend upwards.

KaiserEric13 06-01-2015 22:47

Re: pic: REV Robotics Simple Lift
 
Just wondering if there is any point advantage to stacking the totes within the robot, or if there is any real advantage to stacking the totes inside the robot in general?

JorgeReyes 06-01-2015 22:54

Re: pic: REV Robotics Simple Lift
 
Maybe being able to move stacks

Doug G 06-01-2015 22:55

Re: pic: REV Robotics Simple Lift
 
Quote:

Originally Posted by KaiserEric13 (Post 1423295)
Just wondering if there is any point advantage to stacking the totes within the robot, or if there is any real advantage to stacking the totes inside the robot in general?

Stability for one. Keeping your CG closer to your drive base should result in a more stable robot. Less tippy.

Stack security for another. It may be easier to design a system within your robot to keep tote/containers from falling over when moving about.

MrRiedemanJACC 06-01-2015 23:01

Re: pic: REV Robotics Simple Lift
 
Greg,

Do you know if this was designed with one or the Bimba Cylinders that are available to us? We are mentoring a rookie team and this looks like a great option to get them started! Thanks!

asid61 07-01-2015 00:02

Re: pic: REV Robotics Simple Lift
 
Quote:

Originally Posted by KaiserEric13 (Post 1423295)
Just wondering if there is any point advantage to stacking the totes within the robot, or if there is any real advantage to stacking the totes inside the robot in general?

COG. If your COG gets too far out the chassis (which, for tall stacks, is likely) then you risk tipping a litle bit when you accelerate or stop suddenly. If you tip even a little, you might knock over your totes.

aldaeron 07-01-2015 08:18

Re: pic: REV Robotics Simple Lift
 
Greg,

Do you have an approximate lead time for the bushings and bearing plate shown in this design to arrive at AndyMark?

Thanks!


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