Go to Post Everyone needs to please stop now before Karthik starts singing. - dlavery [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
  #1   Spotlight this post!  
Unread 13-01-2009, 21:17
Bongle's Avatar
Bongle Bongle is offline
Registered User
FRC #2702 (REBotics)
Team Role: Mentor
 
Join Date: Feb 2004
Rookie Year: 2002
Location: Waterloo
Posts: 1,069
Bongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond repute
Send a message via MSN to Bongle
Slow-motion 4WD wheelspin on hardwood

This is a video we took of our kitbot chassis accelerating on hardwood with a slow-motion camera. It's pretty neat to see how much it slips.
http://www.youtube.com/watch?v=_ckB-boEoWs

And since I work for Sony, I wouldn't be doing my job if I didn't mention that the fine product used to record that video was a Sony HDR-SR1.
Reply With Quote
  #2   Spotlight this post!  
Unread 13-01-2009, 21:23
cardinalman86's Avatar
cardinalman86 cardinalman86 is offline
0001 0101 0010 1001 System Lead!!
AKA: Corey
FRC #1529
Team Role: Leadership
 
Join Date: Jan 2006
Rookie Year: 2006
Location: Southport,Indiana
Posts: 112
cardinalman86 will become famous soon enough
Send a message via Yahoo to cardinalman86
Re: Slow-motion 4WD wheelspin on hardwood

It's so crazy how the wheels spin and how many times they spin before they actually get enough grip to move it's gonna be fun for many
__________________
Before you practice zen, a bowl is a bowl and a cup is a cup. During zen, a bowl is not a bowl and a cup is not a cup. After practicing zen, a bowl is a bowl and a cup is a cup.
Reply With Quote
  #3   Spotlight this post!  
Unread 13-01-2009, 22:18
Booksy Booksy is offline
Registered User
FRC #1244 (Viking Robotics)
Team Role: Programmer
 
Join Date: Apr 2008
Rookie Year: 2007
Location: Great White North
Posts: 97
Booksy will become famous soon enoughBooksy will become famous soon enough
Re: Slow-motion 4WD wheelspin on hardwood

I'd like to see a side-by-side of a full on acceleration wheel spin and an effective implementation of traction control.

Hopefully, I can get ours to be effective.

It should be interesting to see the advantage.
__________________
My favorite CD quote ever(taken out of context of course):
Quote:
Originally Posted by ttldomination
water would be hard to build
Reply With Quote
  #4   Spotlight this post!  
Unread 14-01-2009, 02:30
sanddrag sanddrag is offline
On to my 16th year in FRC
FRC #0696 (Circuit Breakers)
Team Role: Teacher
 
Join Date: Jul 2002
Rookie Year: 2002
Location: Glendale, CA
Posts: 8,516
sanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond repute
Re: Slow-motion 4WD wheelspin on hardwood

this is great. What is the most inexpensive camera out there that can provide similar results?
__________________
Teacher/Engineer/Machinist - Team 696 Circuit Breakers, 2011 - Present
Mentor/Engineer/Machinist, Team 968 RAWC, 2007-2010
Technical Mentor, Team 696 Circuit Breakers, 2005-2007
Student Mechanical Leader and Driver, Team 696 Circuit Breakers, 2002-2004
Reply With Quote
  #5   Spotlight this post!  
Unread 14-01-2009, 06:15
Bongle's Avatar
Bongle Bongle is offline
Registered User
FRC #2702 (REBotics)
Team Role: Mentor
 
Join Date: Feb 2004
Rookie Year: 2002
Location: Waterloo
Posts: 1,069
Bongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond repute
Send a message via MSN to Bongle
Re: Slow-motion 4WD wheelspin on hardwood

Quote:
Originally Posted by sanddrag View Post
this is great. What is the most inexpensive camera out there that can provide similar results?
The Casio EX-F1 is $1000, and it has up to 1200fps recording. The video I posted was 240fps.

There are other sony camcorders that do this (the feature is called "smooth slow record"), and the cheapest one I can find is $800CDN. So you can probably find ones in the states with this feature for $600ish.
Reply With Quote
  #6   Spotlight this post!  
Unread 14-01-2009, 09:01
seanl's Avatar
seanl seanl is offline
"The Everything person"
FRC #0867 (Absolute Value)
Team Role: Leadership
 
Join Date: Jan 2007
Rookie Year: 2007
Location: Arcadia, CA
Posts: 267
seanl will become famous soon enoughseanl will become famous soon enough
Re: Slow-motion 4WD wheelspin on hardwood

Quote:
Originally Posted by Bongle View Post
The Casio EX-F1 is $1000, and it has up to 1200fps recording. The video I posted was 240fps.

There are other sony camcorders that do this (the feature is called "smooth slow record"), and the cheapest one I can find is $800CDN. So you can probably find ones in the states with this feature for $600ish.
Can you do this on a Sony HDR-SR11?
__________________
, Sean

TEAM 867
-electrical
-pneumatics
-programming



2008 Autodesk Visualization Grand Prize Winner
Reply With Quote
  #7   Spotlight this post!  
Unread 14-01-2009, 09:24
Bongle's Avatar
Bongle Bongle is offline
Registered User
FRC #2702 (REBotics)
Team Role: Mentor
 
Join Date: Feb 2004
Rookie Year: 2002
Location: Waterloo
Posts: 1,069
Bongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond reputeBongle has a reputation beyond repute
Send a message via MSN to Bongle
Re: Slow-motion 4WD wheelspin on hardwood

Quote:
Originally Posted by seanl View Post
Can you do this on a Sony HDR-SR11?
The camera I used was a Sony HDR SR1 (only one '1'). You touch the home button (top left on the screen), then select 'smth slow rec.' in the next menu.
Reply With Quote
  #8   Spotlight this post!  
Unread 14-01-2009, 09:38
seanl's Avatar
seanl seanl is offline
"The Everything person"
FRC #0867 (Absolute Value)
Team Role: Leadership
 
Join Date: Jan 2007
Rookie Year: 2007
Location: Arcadia, CA
Posts: 267
seanl will become famous soon enoughseanl will become famous soon enough
Re: Slow-motion 4WD wheelspin on hardwood

thanks, i just looked and i found it. I am so going to take my camcorder to robotics now.
__________________
, Sean

TEAM 867
-electrical
-pneumatics
-programming



2008 Autodesk Visualization Grand Prize Winner
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
4WD, is it legal? Max Brin Technical Discussion 7 11-01-2006 17:38
2 WD vs. 4WD vs. 6 WD robert Technical Discussion 1 19-01-2005 20:47
4wd vs 6wd? Yov Technical Discussion 22 06-01-2005 00:09
How slow is too slow? Joe Ross Rules/Strategy 23 12-10-2004 20:23
4wd Lisa Kit & Additional Hardware 2 03-02-2003 13:15


All times are GMT -5. The time now is 07:39.

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