Go to Post Heck, every human being has the potential to change the world, as long as the world still exists. - [more]
Home
Go Back   Chief Delphi > Technical > Motors
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Closed Thread
Thread Tools Rate Thread Display Modes
  #1   Spotlight this post!  
Unread 01-02-2009, 12:44
de_ de_ is offline
Registered User
AKA: Dave Edwards
FRC #1310 (Runnymede Robotics)
Team Role: Mentor
 
Join Date: Apr 2005
Rookie Year: 2005
Location: Toronto, Ontario
Posts: 256
de_ is a jewel in the roughde_ is a jewel in the roughde_ is a jewel in the roughde_ is a jewel in the rough
FP pinion 16t, not 19 as per KOP

We noticed the FP gear ratios are completely different from last year (slower) and in-spite of what the KOP says, the motor has a 16 tooth pinion, not 19. The motor part number is 009680-9015 which is the same as last year so at least we know it is a 12v motor (one year they accidently shipped 6v motors!). But it can not be used as a spare as the pinion is 19.

Anyone else confirm they got 16t pinions ?
  #2   Spotlight this post!  
Unread 01-02-2009, 12:48
vivek16's Avatar
vivek16 vivek16 is offline
Whoa! college pilot.
AKA: vivek
FRC #2264 (trojan robotics)
Team Role: Alumni
 
Join Date: Jan 2007
Rookie Year: 2007
Location: plymouth, minnesota
Posts: 1,227
vivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond repute
Send a message via AIM to vivek16 Send a message via MSN to vivek16
Re: FP pinion 16t, not 19 as per KOP

It is indeed a 16 tooth pinion.

How many teeth does the plastic gear that the 16 tooth pinion interfaces with have? I know it's been 80 in the past but it may have changed.

thanks, Vivek
__________________
"we don't build robots, we build people"
  #3   Spotlight this post!  
Unread 01-02-2009, 12:53
MrForbes's Avatar
MrForbes MrForbes is offline
Registered User
AKA: Jim
FRC #1726 (N.E.R.D.S.)
Team Role: Mentor
 
Join Date: Feb 2006
Rookie Year: 2006
Location: Sierra Vista AZ
Posts: 6,033
MrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond repute
Re: FP pinion 16t, not 19 as per KOP

72 tooth

I think
  #4   Spotlight this post!  
Unread 01-02-2009, 13:58
vivek16's Avatar
vivek16 vivek16 is offline
Whoa! college pilot.
AKA: vivek
FRC #2264 (trojan robotics)
Team Role: Alumni
 
Join Date: Jan 2007
Rookie Year: 2007
Location: plymouth, minnesota
Posts: 1,227
vivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond repute
Send a message via AIM to vivek16 Send a message via MSN to vivek16
Re: FP pinion 16t, not 19 as per KOP

Darn, I designed a gearbox for 80 teeth. Can someone give me a confirmation that it's 72 teeth? I'd hate to redesign the gearbox twice.

-Vivek
__________________
"we don't build robots, we build people"
  #5   Spotlight this post!  
Unread 01-02-2009, 14:03
MrForbes's Avatar
MrForbes MrForbes is offline
Registered User
AKA: Jim
FRC #1726 (N.E.R.D.S.)
Team Role: Mentor
 
Join Date: Feb 2006
Rookie Year: 2006
Location: Sierra Vista AZ
Posts: 6,033
MrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond repute
Re: FP pinion 16t, not 19 as per KOP

you don't have a KOP transmission to take apart?

anyways....start counting....

this is the first gear in the geartrain, isn't it? the second gear is blue, and has larger pitch teeth on it's attached small gear, right?
Attached Thumbnails
Click image for larger version

Name:	fpgear.jpg
Views:	68
Size:	62.0 KB
ID:	7286  
  #6   Spotlight this post!  
Unread 01-02-2009, 14:13
vivek16's Avatar
vivek16 vivek16 is offline
Whoa! college pilot.
AKA: vivek
FRC #2264 (trojan robotics)
Team Role: Alumni
 
Join Date: Jan 2007
Rookie Year: 2007
Location: plymouth, minnesota
Posts: 1,227
vivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond repute
Send a message via AIM to vivek16 Send a message via MSN to vivek16
Re: FP pinion 16t, not 19 as per KOP

I don't have access to our workshop until tomorrow. I started designing said gearbox yesterday after our meeting and figured the gearbox was the same as previous years. Oops.

Thanks for the picture, that is the gear I am talking about.

I counted, it is 72 teeth.

thanks, Vivek
__________________
"we don't build robots, we build people"
  #7   Spotlight this post!  
Unread 01-02-2009, 14:17
Manoel's Avatar
Manoel Manoel is offline
Registered User
FRC #0383 (Brazilian Machine)
Team Role: Mentor
 
Join Date: Jun 2001
Rookie Year: 2000
Location: Porto Alegre, RS, Brazil
Posts: 608
Manoel has a reputation beyond reputeManoel has a reputation beyond reputeManoel has a reputation beyond reputeManoel has a reputation beyond reputeManoel has a reputation beyond reputeManoel has a reputation beyond reputeManoel has a reputation beyond reputeManoel has a reputation beyond reputeManoel has a reputation beyond reputeManoel has a reputation beyond reputeManoel has a reputation beyond repute
Send a message via ICQ to Manoel Send a message via MSN to Manoel
Re: FP pinion 16t, not 19 as per KOP

Quote:
Originally Posted by squirrel View Post
you don't have a KOP transmission to take apart?

anyways....start counting....

this is the first gear in the geartrain, isn't it? the second gear is blue, and has larger pitch teeth on it's attached small gear, right?

That gear you posted does have 72 teeth - I'm assuming it is from this year's gearbox, which I did not open yet, since they are usually 79 teeth - 0.8 module, 20 degree pressure angle.


Since we're discussing FP motors, has anyone tested its free-load speed? FIRST specs it at 15800 RPM, but our tests showed 19000 RPM, as I already mentioned here. Some confirmation, either way, would be great.
__________________
Manoel Flores da Cunha
Mentor
Brazilian Machine
Team # 383
  #8   Spotlight this post!  
Unread 01-02-2009, 18:26
vivek16's Avatar
vivek16 vivek16 is offline
Whoa! college pilot.
AKA: vivek
FRC #2264 (trojan robotics)
Team Role: Alumni
 
Join Date: Jan 2007
Rookie Year: 2007
Location: plymouth, minnesota
Posts: 1,227
vivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond repute
Send a message via AIM to vivek16 Send a message via MSN to vivek16
Re: FP pinion 16t, not 19 as per KOP

What's the OD of that white spacer on the FP motor? Does the OD line up with the inside of the vent holes?

thanks, Vivek
__________________
"we don't build robots, we build people"
  #9   Spotlight this post!  
Unread 01-02-2009, 22:14
MrForbes's Avatar
MrForbes MrForbes is offline
Registered User
AKA: Jim
FRC #1726 (N.E.R.D.S.)
Team Role: Mentor
 
Join Date: Feb 2006
Rookie Year: 2006
Location: Sierra Vista AZ
Posts: 6,033
MrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond repute
Re: FP pinion 16t, not 19 as per KOP

I think we measured it variously at 0.795" and 20 mm.
  #10   Spotlight this post!  
Unread 01-02-2009, 23:31
vivek16's Avatar
vivek16 vivek16 is offline
Whoa! college pilot.
AKA: vivek
FRC #2264 (trojan robotics)
Team Role: Alumni
 
Join Date: Jan 2007
Rookie Year: 2007
Location: plymouth, minnesota
Posts: 1,227
vivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond reputevivek16 has a reputation beyond repute
Send a message via AIM to vivek16 Send a message via MSN to vivek16
Re: FP pinion 16t, not 19 as per KOP

Thanks, so it's made to overlap a bit with the edge of the vent hole...

-Vivek
__________________
"we don't build robots, we build people"
Closed Thread


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
Pinion not machined correctly Coachmac Kit & Additional Hardware 2 14-01-2005 10:28
Converting the Bosch Metric Pinion into an English- Specification Pinion evolution Motors 3 28-08-2004 16:30
Picture Gallery Rows-per-Page not sticky Greg Ross CD Forum Support 5 22-04-2004 21:13
Bosch Pinion JamesJones Motors 18 23-02-2003 00:20


All times are GMT -5. The time now is 15:20.

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