Go to Post I love the smell of a upcoming FRC build season in the morning. The sleepless night; the drills; welding; cutting of metal. I wait all yr. for this. - midway78224 [more]
Home
Go Back   Chief Delphi > FIRST > General Forum
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Reply
Thread Tools Rate Thread Display Modes
  #46   Spotlight this post!  
Unread 04-01-2009, 13:25
sbrumund sbrumund is offline
Registered User
FRC #2115 (M cubed)
Team Role: Mentor
 
Join Date: Nov 2008
Rookie Year: 2008
Location: Mundelein,IL
Posts: 27
sbrumund is an unknown quantity at this point
Re: The Game Floor

Based on simple physics principals the friction force is independant of the area.

In reality it may and will be quite different.

If the surface has a slight texture to it there may be an advantage to fiewer wheels. The wheels look like last years kit wheels which have a soft surface compound. With sufficient weight on the wheel the compound will conform to any irregularities in the surface giving you additional traction.

The real question is how much weight is needed per wheel to obtain the optimal compound deformation and the most traction.

If you have a skid steer 4 or 6 wheel drive system you need to generate enough force to slide wheels sideways. Skid steer systems in general do work well on ice becuuse you are limiting your self to kinetic friction which is very low.

Think of a car on ice. As long as you accelerate and turn slowly you remain in control because static friction dominates.

If you slam on your breaks, accelereate fast or turn to quickly all you have is kinetic friction, newtons first law takes over and inertia is the driver.

This surface does seem to give a decided advantage the the established teams with four wheel drive systems that steer each wheel. These are complex drive systems that require a lot of programming and are difficlult to design and debug in 6 weeks.
Reply With Quote
  #47   Spotlight this post!  
Unread 04-01-2009, 13:29
germanystudent's Avatar
germanystudent germanystudent is offline
Trashed and Scattered
AKA: Everett
FRC #2865 (Roboteknix)
Team Role: Mentor
 
Join Date: Sep 2008
Rookie Year: 2008
Location: Post Falls
Posts: 86
germanystudent has a spectacular aura aboutgermanystudent has a spectacular aura aboutgermanystudent has a spectacular aura about
Send a message via MSN to germanystudent
Re: The Game Floor

when dean's bot collided with the other one, it looked just like some of the ice collisions up here in north Idaho... so some tips for ice driving:
1) start slow, otherwise you'll peel out,
2) controlled drifting can stop you faster occasionally
3) anti-lock breaks are your beast friend, or just decreasing speed first
4) more weight does mean more friction, but also you take a LOT longer to stop
5) try to get practice on ice if you have it near where you live.

i just wish that ice rink here in town had a stronger roof... it collapsed under the snow...
__________________
Nobody leaves my reality without a note from their mother!
Reply With Quote
  #48   Spotlight this post!  
Unread 04-01-2009, 14:25
David Brinza's Avatar
David Brinza David Brinza is offline
Lead Mentor, Lead Robot Inspector
FRC #0980 (ThunderBots)
Team Role: Mentor
 
Join Date: Feb 2003
Rookie Year: 2003
Location: Glendale, CA
Posts: 1,379
David Brinza has a reputation beyond reputeDavid Brinza has a reputation beyond reputeDavid Brinza has a reputation beyond reputeDavid Brinza has a reputation beyond reputeDavid Brinza has a reputation beyond reputeDavid Brinza has a reputation beyond reputeDavid Brinza has a reputation beyond reputeDavid Brinza has a reputation beyond reputeDavid Brinza has a reputation beyond reputeDavid Brinza has a reputation beyond reputeDavid Brinza has a reputation beyond repute
Re: The Game Floor

The attached photo was posted by our friends at The Blue Alliance Kickoff 2009 on Flickr.

The picture leaves no doubt that the pebbled-surface Glasliner is the "right stuff"...
Attached Thumbnails
Click image for larger version

Name:	Lunacy_surface.jpg
Views:	267
Size:	108.9 KB
ID:	7069  
__________________
"There's never enough time to do it right, but always time to do it over."
2003 AZ: Semifinals, Motorola Quality; SoCal: Q-finals, Xerox Creativity; IRI: Q-finals
2004 AZ: Semifinals, GM Industrial Design; SoCal: Winners, Leadership in Controls; Championship: Galileo #2 seed, Q-finals; IRI: Champions
2005 AZ: #1 Seed, Xerox Creativity; SoCal: Finalist, RadioShack Controls; SVR: Winners, Delphi "Driving Tomorrow's Technologies"; Championship: Archimedes Semifinals; IRI: Finalist
2007 LA: Finalist; San Diego: Q-finals; CalGames: Finalist || 2008 San Diego: Q-finals; LA: Winners; CalGames: Finalist || 2009 LA: Semifinals; Las Vegas: Q-finals; IRI: #1 Seed, Finalist
2010 AZ: Motorola Quality; LA: Finalist || 2011 SD: Q-finals; LA: Q-finals || 2013 LA: Xerox Creativity, WFFA, Dean's List Finalist || 2014 IE: Q-finals, LA: Finalist, Dean's List Finalist
2016 Ventura: Q-finals, WFFA, Engineering Inspiration
Reply With Quote
  #49   Spotlight this post!  
Unread 04-01-2009, 18:25
Dave Flowerday Dave Flowerday is offline
Software Engineer
VRC #0111 (Wildstang)
Team Role: Engineer
 
Join Date: Feb 2002
Rookie Year: 1995
Location: North Barrington, IL
Posts: 1,366
Dave Flowerday has a reputation beyond reputeDave Flowerday has a reputation beyond reputeDave Flowerday has a reputation beyond reputeDave Flowerday has a reputation beyond reputeDave Flowerday has a reputation beyond reputeDave Flowerday has a reputation beyond reputeDave Flowerday has a reputation beyond reputeDave Flowerday has a reputation beyond reputeDave Flowerday has a reputation beyond reputeDave Flowerday has a reputation beyond reputeDave Flowerday has a reputation beyond repute
Re: The Game Floor

Quote:
Originally Posted by sbrumund View Post
The wheels look like last years kit wheels which have a soft surface compound. With sufficient weight on the wheel the compound will conform to any irregularities in the surface giving you additional traction.
They are not the same as last year's kit wheels. The wheels this year have a very hard surface that does not conform at all.
Reply With Quote
  #50   Spotlight this post!  
Unread 04-01-2009, 18:39
Olde Bill Olde Bill is offline
Registered User
AKA: Bill Holtby
#1006 (FAST EDDIE & The Rebels)
Team Role: Mentor
 
Join Date: Apr 2003
Rookie Year: 2003
Location: Port Perry, Ontario
Posts: 9
Olde Bill will become famous soon enough
Re: The Game Floor

From the photos and the section of the manual dealing with field layout and marking, I'd guess that they're using Glasliner FRP Basement Liner (8' width rather than standard 4') with fibre-glass tape on the seams. Much easier for field set-up. Is it on top of carpet? At 0.060" thickness, could be very sensitive to the surface it's laying on.

Time flies like an arrow but fruit flies like a banana,
Olde Bill
__________________
Ex Obscuritate At Lucem

Last edited by Olde Bill : 04-01-2009 at 18:49.
Reply With Quote
  #51   Spotlight this post!  
Unread 04-01-2009, 18:58
Hadi379's Avatar
Hadi379 Hadi379 is offline
Registered User
FRC #0379
 
Join Date: Jan 2007
Location: Girard
Posts: 171
Hadi379 is a splendid one to beholdHadi379 is a splendid one to beholdHadi379 is a splendid one to beholdHadi379 is a splendid one to beholdHadi379 is a splendid one to beholdHadi379 is a splendid one to beholdHadi379 is a splendid one to behold
Re: The Game Floor

I'm assuming they will be using these laminated panels as the floor covering:

http://www.glasteel.com/ingles/Detal...1262_1285.html

Any ideas where these panels can be purchased locally???
Reply With Quote
  #52   Spotlight this post!  
Unread 04-01-2009, 19:00
GillSt.Bernards's Avatar
GillSt.Bernards GillSt.Bernards is offline
Registered User
AKA: Amanda Cullen
FRC #2458 (Team Chaos)
Team Role: Leadership
 
Join Date: Jan 2009
Rookie Year: 2008
Location: Gladstone, NJ
Posts: 139
GillSt.Bernards is a name known to allGillSt.Bernards is a name known to allGillSt.Bernards is a name known to allGillSt.Bernards is a name known to allGillSt.Bernards is a name known to allGillSt.Bernards is a name known to all
Send a message via AIM to GillSt.Bernards
Re: The Game Floor

The surface can also be found at most Lowes and Home Depot stores
Reply With Quote
  #53   Spotlight this post!  
Unread 04-01-2009, 19:06
Ryan Albright's Avatar
Ryan Albright Ryan Albright is offline
Just Browsing
AKA: ryan albright
no team
Team Role: Alumni
 
Join Date: Feb 2003
Rookie Year: 2001
Location: Charlotte, nc
Posts: 934
Ryan Albright has a reputation beyond reputeRyan Albright has a reputation beyond reputeRyan Albright has a reputation beyond reputeRyan Albright has a reputation beyond reputeRyan Albright has a reputation beyond reputeRyan Albright has a reputation beyond reputeRyan Albright has a reputation beyond reputeRyan Albright has a reputation beyond reputeRyan Albright has a reputation beyond reputeRyan Albright has a reputation beyond reputeRyan Albright has a reputation beyond repute
Send a message via ICQ to Ryan Albright Send a message via AIM to Ryan Albright Send a message via MSN to Ryan Albright Send a message via Yahoo to Ryan Albright
Re: The Game Floor

Its been a long time since I have posted on here, I been out of robotics for about 4 years now. Just busy with work. Hopefully getting in involved with my old team this year.... anyway

I am so happy they changed the floor. I was wanting them to change the floor since I was a Member back in 2003. Good luck to all
__________________
Alumni of 710 2001-2004
Mentor 1083 2005
2005 UCF regional lead safety advisor
2005 Championship Safety advisor
Reply With Quote
  #54   Spotlight this post!  
Unread 04-01-2009, 22:50
heybhaven heybhaven is offline
Registered User
FRC #3045
 
Join Date: Jan 2009
Location: San Mateo
Posts: 3
heybhaven is an unknown quantity at this point
Buying Regolith

Does anyone know where you could buy or order Regolith?
Reply With Quote
  #55   Spotlight this post!  
Unread 04-01-2009, 22:56
Ellery's Avatar Unsung FIRST Hero
Ellery Ellery is offline
Working on my 10 month old robot...
AKA: Ellery
no team (X-CATS - on Sabbatical)
Team Role: Leadership
 
Join Date: Jun 2001
Rookie Year: 1999
Location: Rochester, NY
Posts: 383
Ellery has a reputation beyond reputeEllery has a reputation beyond reputeEllery has a reputation beyond reputeEllery has a reputation beyond reputeEllery has a reputation beyond reputeEllery has a reputation beyond reputeEllery has a reputation beyond reputeEllery has a reputation beyond reputeEllery has a reputation beyond reputeEllery has a reputation beyond reputeEllery has a reputation beyond repute
Send a message via AIM to Ellery Send a message via Yahoo to Ellery
Re: Buying Regolith

FYI there's already a thread on this - Please search for Glasliner FRP per the manual. People have gottem them at HomeDepot and lowes
__________________
Xerox Sr. Systems Engineer
Other jobs: Retired X-CATS Team Leader, Inaugural FLR MC and plain ol' nice guy
Team# 191 X-CATS - Est.1992 (www.x-cats.org)
"We don't just build robots we build people..."
Reply With Quote
  #56   Spotlight this post!  
Unread 04-01-2009, 23:00
heybhaven heybhaven is offline
Registered User
FRC #3045
 
Join Date: Jan 2009
Location: San Mateo
Posts: 3
heybhaven is an unknown quantity at this point
Re: Buying Regolith

So u can find it at home depot or lowes?
Reply With Quote
  #57   Spotlight this post!  
Unread 04-01-2009, 23:05
Mike AA's Avatar
Mike AA Mike AA is offline
Programmer and Mentor
AKA: Mike Aalderink
FRC #3458 (Code Blue)
Team Role: Programmer
 
Join Date: Jan 2003
Rookie Year: 1999
Location: Holland, Mi
Posts: 698
Mike AA is a splendid one to beholdMike AA is a splendid one to beholdMike AA is a splendid one to beholdMike AA is a splendid one to beholdMike AA is a splendid one to beholdMike AA is a splendid one to beholdMike AA is a splendid one to beholdMike AA is a splendid one to behold
Send a message via MSN to Mike AA
Re: The Game Floor

Menards just put these panels on sale starting today thru 1/18/08 if I remember right for about $24

-Mike AA
Reply With Quote
  #58   Spotlight this post!  
Unread 04-01-2009, 23:44
cbudrecki's Avatar
cbudrecki cbudrecki is offline
Registered User
AKA: Carl Budrecki (buh-dre'-key)
FRC #0222 (Tigertrons)
Team Role: Alumni
 
Join Date: Oct 2002
Rookie Year: 2001
Location: Tunkhannock, PA
Posts: 275
cbudrecki is a name known to allcbudrecki is a name known to allcbudrecki is a name known to allcbudrecki is a name known to allcbudrecki is a name known to allcbudrecki is a name known to all
Re: Buying Regolith

I found a similar material at Home Depot. The only difference is that it's not the GlasLiner brand. It's still the FRP .09", fiberglass sheet. Of course I would definitely be able to confirm this if FIRST included a sample in the KOP.

$27 for a 4x8 sheet
Reply With Quote
  #59   Spotlight this post!  
Unread 04-01-2009, 23:46
clark_noah's Avatar
clark_noah clark_noah is offline
Registered User
FRC #1245
 
Join Date: Jan 2008
Location: Colorado
Posts: 56
clark_noah has a spectacular aura aboutclark_noah has a spectacular aura aboutclark_noah has a spectacular aura about
Re: Buying Regolith

Quote:
Originally Posted by tb222 View Post
Of course I would definitely be able to confirm this if FIRST included a sample in the KOP.

I know! I wish FIRST would have given us some of this stuff.... oh well...
Reply With Quote
  #60   Spotlight this post!  
Unread 04-01-2009, 23:49
cbudrecki's Avatar
cbudrecki cbudrecki is offline
Registered User
AKA: Carl Budrecki (buh-dre'-key)
FRC #0222 (Tigertrons)
Team Role: Alumni
 
Join Date: Oct 2002
Rookie Year: 2001
Location: Tunkhannock, PA
Posts: 275
cbudrecki is a name known to allcbudrecki is a name known to allcbudrecki is a name known to allcbudrecki is a name known to allcbudrecki is a name known to allcbudrecki is a name known to all
Re: Buying Regolith

Quote:
Originally Posted by clark_noah View Post
I know! I wish FIRST would have given us some of this stuff.... oh well...
even just a 6"x6" square would have been fine, just so people who couldn't make it to NH could see exactly what it was! the most important game piece this year, and no sample!!!
Reply With Quote
Reply


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
174 gets off the floor Tetraman Robot Showcase 9 25-02-2008 17:04
Are the goals bolted to the floor? Leav Rules/Strategy 1 11-01-2005 03:31
Robots Hanging from the Floor Todd Derbyshire Rules/Strategy 16 13-01-2004 14:10
Height of the box stack from the floor tenfour General Forum 4 07-01-2003 10:26
Conduit on the floor Kyle Fenton General Forum 2 06-01-2002 14:49


All times are GMT -5. The time now is 00:55.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


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