Go to Post OPR will not get you to Einstein - Paul Copioli [more]
Home
Go Back   Chief Delphi > Technical > Technical Discussion
Reload this Page Transmission gear ratio
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Closed Thread
View First Unread View First Unread  
Thread Tools Rate Thread Display Modes
  #1   Spotlight this post!  
Unread 10-01-2005, 16:26
MASherry MASherry is offline
Registered User
#0555
Team Role: Driver
  
Join Date: Jan 2004
Location: Montclair, NJ
Posts: 67
MASherry has a little shameless behaviour in the past
Talking Transmission gear ratio
I searched already...does anyone know the gear ratio on the kit transmission?
__________________

Carnegie Mellon University Class of 2009!!!
2005- Arizona Regional Champs (Thanks 1492 and 1324)
2005- NYC regional finalists (Thanks 38 and 1660)/ 2005- NYC regional website award
2005- NYC regional J&J Sportsmanship award
2005- National J&J Sportsmanship award
2004- Team Shooter
2004- Crowd Pleaser Award- NYC Regional
2003-7th Place Galileo Divison- Nat's
  #2   Spotlight this post!  
Unread 10-01-2005, 16:37
indieFan indieFan is offline
RoboDox and LVHS - Missing you!
FRC #5941
Team Role: Engineer
  
Join Date: Jan 2002
Rookie Year: 2001
Location: Seattle (was SoCal, then SA,TX))
Posts: 382
indieFan has a reputation beyond reputeindieFan has a reputation beyond reputeindieFan has a reputation beyond reputeindieFan has a reputation beyond reputeindieFan has a reputation beyond reputeindieFan has a reputation beyond reputeindieFan has a reputation beyond reputeindieFan has a reputation beyond reputeindieFan has a reputation beyond reputeindieFan has a reputation beyond reputeindieFan has a reputation beyond repute
Re: Transmission gear ratio
I did a rough calculation yesterday and got a 1:17 gear ratio.

indieFan
  #3   Spotlight this post!  
Unread 10-01-2005, 16:39
Ryan Foley Ryan Foley is offline
Registered User
FRC #5687 (The Outliers)
Team Role: Mentor
  
Join Date: Jun 2002
Rookie Year: 2001
Location: ME
Posts: 447
Ryan Foley has a reputation beyond reputeRyan Foley has a reputation beyond reputeRyan Foley has a reputation beyond reputeRyan Foley has a reputation beyond reputeRyan Foley has a reputation beyond reputeRyan Foley has a reputation beyond reputeRyan Foley has a reputation beyond reputeRyan Foley has a reputation beyond reputeRyan Foley has a reputation beyond reputeRyan Foley has a reputation beyond reputeRyan Foley has a reputation beyond repute
Re: Transmission gear ratio
The transmission is a 12.75 : 1 gear ratio, the sprockets are a 28:21 gear ratio, this combines for a 17:1 gear ratio.

The Guidelines document has a lot more info on the transmissions and motors you may find useful. Look for it around pages 7, 8, and 9.
__________________
Ryan

FRC #5687: The Outliers [2015-?]
FRC #1995: Fatal Error [2007-2009]
FRC #350: Timberlane Robotics [2001-2004]

FRC/FLL volunteer since 2005
  #4   Spotlight this post!  
Unread 10-01-2005, 19:21
Paul Copioli's Avatar Unsung FIRST Hero Woodie Flowers Award
Paul Copioli Paul Copioli is offline
President, VEX Robotics, Inc.
FRC #3310 (Black Hawk Robotics)
Team Role: Engineer
  
Join Date: Jun 2001
Rookie Year: 2000
Location: Rockwall, TX
Posts: 1,388
Paul Copioli has a reputation beyond reputePaul Copioli has a reputation beyond reputePaul Copioli has a reputation beyond reputePaul Copioli has a reputation beyond reputePaul Copioli has a reputation beyond reputePaul Copioli has a reputation beyond reputePaul Copioli has a reputation beyond reputePaul Copioli has a reputation beyond reputePaul Copioli has a reputation beyond reputePaul Copioli has a reputation beyond reputePaul Copioli has a reputation beyond repute
Re: Transmission gear ratio
It is exactly (50/14)*(50/14), or 625/49 which approx. equals 12.7551:1.

This is in the kit transmission manual located here. Right click on "FIRST 2005 Transmission Manual -RevA" and select "save target as".

-Paul
  #5   Spotlight this post!  
Unread 10-01-2005, 21:59
MASherry MASherry is offline
Registered User
#0555
Team Role: Driver
  
Join Date: Jan 2004
Location: Montclair, NJ
Posts: 67
MASherry has a little shameless behaviour in the past
Re: Transmission gear ratio
thanks guys..does anyone know the size of the gear box witht eh motors attached??
__________________

Carnegie Mellon University Class of 2009!!!
2005- Arizona Regional Champs (Thanks 1492 and 1324)
2005- NYC regional finalists (Thanks 38 and 1660)/ 2005- NYC regional website award
2005- NYC regional J&J Sportsmanship award
2005- National J&J Sportsmanship award
2004- Team Shooter
2004- Crowd Pleaser Award- NYC Regional
2003-7th Place Galileo Divison- Nat's
  #6   Spotlight this post!  
Unread 13-01-2005, 09:31
M. Hicken's Avatar
M. Hicken M. Hicken is offline
Where am I?
AKA: I AM PACO
#0219 (Team Impact)
Team Role: Driver
  
Join Date: Jan 2004
Rookie Year: 2002
Location: Washington, NJ
Posts: 158
M. Hicken is a jewel in the roughM. Hicken is a jewel in the roughM. Hicken is a jewel in the rough
Send a message via AIM to M. Hicken
Re: Transmission gear ratio
big and heavy
__________________
If duct tape isnt the answer you're looking for, you're asking the wrong question

There is no such thing as a stupid question, there are just a lot of inquisitive idiots
Personal rookie year: 2002
Team Impact 219: 1998
  #7   Spotlight this post!  
Unread 13-01-2005, 10:32
Adam Richards's Avatar
Adam Richards Adam Richards is offline
I'm baaaaaaack.
FRC #1902 (Exploding Bacon)
Team Role: College Student
  
Join Date: Jan 2005
Rookie Year: 2005
Location: Orlando, FL
Posts: 1,062
Adam Richards has a reputation beyond reputeAdam Richards has a reputation beyond reputeAdam Richards has a reputation beyond reputeAdam Richards has a reputation beyond reputeAdam Richards has a reputation beyond reputeAdam Richards has a reputation beyond reputeAdam Richards has a reputation beyond reputeAdam Richards has a reputation beyond reputeAdam Richards has a reputation beyond reputeAdam Richards has a reputation beyond reputeAdam Richards has a reputation beyond repute
Send a message via AIM to Adam Richards
Re: Transmission gear ratio
These are just estimates, but probably 4.5"-5" depth on the gearbox and 5-7lbs.
Closed Thread

« Previous Thread | Portal | Next Thread »

Thread Tools
Display Modes Rate This Thread
Linear Mode Linear Mode
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
WOW,3,000,000:1 gear reduction ratio in less than 1 mm^2 geo Math and Science 3 09-10-2004 01:21
Help with gear ratio Wayne C. General Forum 6 26-01-2004 12:30
confuzzling gear ratio definition.. wanna clear this one up? archiver 2001 5 23-06-2002 23:13
"Motors and Drive train edition" of Fresh From the Forum Ken Leung CD Forum Support 6 29-01-2002 12:32
Drivetrain Help Jordan Technical Discussion 16 02-12-2001 12:14


All times are GMT -5. The time now is 15:46.

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

Contact Us - Chief Delphi - Rules - Archive - Top

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