Chief Delphi - Picking frisbee off the floor prototype

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- - Picking frisbee off the floor prototype (http://www.chiefdelphi.com/forums/showthread.php?t=111239)

kingbrandon14

14-01-2013 23:57

Re: Picking frisbee off the floor prototype

Quote:

Originally Posted by s_forbes (Post 1215543)

The hopper is included in the video; the track will hold 4 frisbees and act as the 'hopper'.

So then I guess I meant to ask how will you get them from the hopper into the shooter?

falconmaster

15-01-2013 08:14

Re: Picking frisbee off the floor prototype

Quote:

Originally Posted by JB987 (Post 1215510)

Could be worth the effort if you hope to pick up 2 under the pyramid during auto, Fredi ;) Nice prototype just the same! Have you tried the set up without bottom belts and just lexan bottom on long run portion of loader?

We could not get a high enough coefficient of friction, that does mean it can't be done with a different belt though

falconmaster

15-01-2013 08:15

Re: Picking frisbee off the floor prototype

Quote:

Originally Posted by Andrew Lawrence (Post 1215514)

How close to the ground are you?

I don't have the number with me now but I would venture to say about a 1/16 of an inch

falconmaster

15-01-2013 08:21

Re: Picking frisbee off the floor prototype

Quote:

Originally Posted by kingbrandon14 (Post 1215546)

So then I guess I meant to ask how will you get them from the hopper into the shooter?

We are planning on having a pneumatic loader, pop them up about 4 inches, because the shooter will be right above the polycord track. A second piston will launch the frisbee int the the shooter wheels, we are using an inline shooter.

pntbll1313

15-01-2013 10:04

Re: Picking frisbee off the floor prototype

So what is your plan for the "bump". That 1/4" to 3/8" lip of carpet that goes around the pyramid. Are you planning to articulate your Polycarp lip and raise it or will you just avoid the pyramid?

akoscielski3

15-01-2013 10:42

Re: Picking frisbee off the floor prototype

If you were to move the front roller forward and the Lexan further back, so that the roller is the first thing to contact Frisbee, will this concept still work?

Or is it better with the Lexan hitting it first? Just wondering because i'm not sure how I should do mine.

JB987

15-01-2013 10:54

Re: Picking frisbee off the floor prototype

Quote:

Originally Posted by akoscielski3 (Post 1215728)

Set up a similar model, with roller first and then add lexan extension on bottom so it contacts disks first and test to find out? This presumes you have components of course;)

falconmaster

15-01-2013 10:57

Re: Picking frisbee off the floor prototype

Quote:

Originally Posted by akoscielski3 (Post 1215728)

That might work....we were working within the constraints we had for our arm

akoscielski3

15-01-2013 14:17

Re: Picking frisbee off the floor prototype

Quote:

Originally Posted by JB987 (Post 1215735)

Set up a similar model, with roller first and then add lexan extension on bottom so it contacts disks first and test to find out? This presumes you have components of course;)

Having components is the issue. With the teacher strike all of our gear is at the school.

Hebrew

15-01-2013 22:19

Re: Picking frisbee off the floor prototype

Where can you buy that cord stuff at? Is it cheap?

DonRotolo

15-01-2013 22:40

Re: Picking frisbee off the floor prototype

Quote:

Originally Posted by falconmaster (Post 1215658)

I don't have the number with me now but I would venture to say about a 1/16 of an inch

OK, so what if it could articulate a little upwards, and it rode on small "skis" that would guide it over the <1/2" 'bumps'?

Sorry, it's a problem and I have to try to solve it. I just can't help myself.:o

Rangel

15-01-2013 23:07

Re: Picking frisbee off the floor prototype

Quote:

Originally Posted by DonRotolo (Post 1216228)

It might be able to. For when we start to climb we are going to have to articulate the grabber part so that it is out of the way. Could use the same device to get it over the bump. Or we can just nudge the arm up a bit when we get to those bumps. :D

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