Chief Delphi

Chief Delphi (http://www.chiefdelphi.com/forums/index.php)
-   General Forum (http://www.chiefdelphi.com/forums/forumdisplay.php?f=16)
-   -   "Helix" robots in 2006/2009 (http://www.chiefdelphi.com/forums/showthread.php?t=99535)

Andrew Lawrence 08-01-2012 18:58

"Helix" robots in 2006/2009
 
Does anyone have any videos/pictures (videos are preferred) of robots from 2006/2009 that use a "helix" to get the balls up from the floor to the shooting mechanism?

Thanks!

PS: I already searched, both CD and Google.

Dr Theta 08-01-2012 19:00

Re: "Helix" robots in 2006/2009
 
1717 and 1771, 217, and 148 may be places to look. Though tornado was spinning the balls downward instead of up.
Edit: These are for 2009

Ross3098 08-01-2012 19:01

Re: "Helix" robots in 2006/2009
 
Also in 2006 I believe that 469 had a helix for moving/storing the poof balls.

gyroscopeRaptor 08-01-2012 19:02

Re: "Helix" robots in 2006/2009
 
Remember only three balls max may be carried by a robot, and any more will get you a 3 point penalty each. Don't count on any complicated hopper or container being useful.

Ross3098 08-01-2012 19:04

Re: "Helix" robots in 2006/2009
 
Quote:

Originally Posted by gyroscopeRaptor (Post 1099829)
Remember only three balls max may be carried by a robot, and any more will get you a 3 point penalty each. Don't count on any complicated hopper or container being useful.

Exactly what I was about to say. Just an idea but you should think about designing the carrying mechanism so that it can only hold a maximum three at once. This way you limit the chances of increasing the opponents score.

Andrew Lawrence 08-01-2012 19:08

Re: "Helix" robots in 2006/2009
 
Thanks for the robots, but aside from some robot videos, I can't find anything that clearly displays the helixes and how they work. Pics/videos are appreciated.

*And for all of those who will complain, YES I have searched this already.

martin417 08-01-2012 19:11

Re: "Helix" robots in 2006/2009
 
Here is a video showing shooting and helix. I agree that the helix may not be the best design for this years game, but I don't want to limit your thinking.

Hallry 08-01-2012 19:13

Re: "Helix" robots in 2006/2009
 
There are many examples from 2006 in the Aim High:Behind the Design book. I have a copy, and will upload some of the pictures later tonight if I have time.

Duke461 08-01-2012 19:26

Re: "Helix" robots in 2006/2009
 
461 Did a helix in 2009. Feel free to browse the photos and information on our website.
Hope this helps,
-Duke

O'Sancheski 08-01-2012 19:34

Re: "Helix" robots in 2006/2009
 
2 Attachment(s)
Quote:

Originally Posted by Dr Theta (Post 1099823)
Though tornado was spinning the balls downward instead of up.

Tornado had to spin the moonrocks upward so that it could load up. Then it would release them in the other direction.

Quote:

Originally Posted by SuperNerd256 (Post 1099837)
Thanks for the robots, but aside from some robot videos, I can't find anything that clearly displays the helixes and how they work. Pics/videos are appreciated.

Attached are two CAD picks of 148s Archimedes screw from 2009. (Hid certain components to make it easier to view center.)

To answer your question of how they worked. You would have a center axis that would rotate 360 degrees. Attached to the center axis would either be fingers or brushes to move the balls towards the top. The spiral would raise in a clockwise fashion and the brushes/fingers would spin in the same direction.


Here are some other Archimedes screws from 2006/2009
1100-2009
233-2006
1771-2009

I agree with Martin. I don't think a screw is completely necessary as you can only possess 3 balls at a time.

MrForbes 08-01-2012 19:38

Re: "Helix" robots in 2006/2009
 
Here's a video of the prototype test of ours, you should be able to find more videos from the same channel around the next few weeks after this was posted, that show it working in the final robot. Or maybe not, I don't remember.

http://www.youtube.com/watch?v=LlUgVpRckS8

yeah, this one is pretty good

http://www.youtube.com/watch?v=U6PchiI4bDQ

Starke 08-01-2012 19:48

Re: "Helix" robots in 2006/2009
 
Check out the Robowranglers (#148) from 2009 on FRC Designs. Look at the picture, video, and CAD for ideas!

http://www.frc-designs.com/html/CAD_2009.html

Matt

Andrew Lawrence 08-01-2012 21:00

Re: "Helix" robots in 2006/2009
 
Thanks all!

John 08-01-2012 22:57

Re: "Helix" robots in 2006/2009
 
http://www.walpolerobotics.org/media...ild/week_2.htm

Not sure how long that link will stay up, we're creating a new website.

About a helix, its really not necessary to hold anywhere near the ~25 balls our robot could that year since you can only have three.

BrendanB 09-01-2012 13:39

Re: "Helix" robots in 2006/2009
 
Quote:

Originally Posted by O'Sancheski (Post 1099870)
Tornado had to spin the moonrocks upward so that it could load up. Then it would release them in the other direction.

Tornado loaded the balls down not up. http://www.youtube.com/watch?v=aCVLZFyEI1Y

One simple solution a few teams used in 2009 was to use flexible plumbing pipe for their archimedes screw to get the helix they needed without all the parts.

http://www.chiefdelphi.com/forums/sh...ight=pic.+1100


All times are GMT -5. The time now is 13:29.

Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi