Go to Post Im ready for anything. - davidthefat [more]
Home
Go Back   Chief Delphi > ChiefDelphi.com Website > Extra Discussion
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 07-03-2007, 02:33
Elgin Clock's Avatar
Elgin Clock Elgin Clock is offline
updates this status less than FB!
AKA: the one who "will break into your thoughts..."
FRC #0237 (Black Magic)
Team Role: Mentor
 
Join Date: May 2001
Rookie Year: 2001
Location: H20-Town, Connecticut
Posts: 7,773
Elgin Clock has a reputation beyond reputeElgin Clock has a reputation beyond reputeElgin Clock has a reputation beyond reputeElgin Clock has a reputation beyond reputeElgin Clock has a reputation beyond reputeElgin Clock has a reputation beyond reputeElgin Clock has a reputation beyond reputeElgin Clock has a reputation beyond reputeElgin Clock has a reputation beyond reputeElgin Clock has a reputation beyond reputeElgin Clock has a reputation beyond repute
Send a message via AIM to Elgin Clock
pic: Banebots carrier plates problem & solution

Reply With Quote
  #2   Spotlight this post!  
Unread 07-03-2007, 02:35
Gabe's Avatar
Gabe Gabe is offline
Pocket Full of Tools
FRC #0604 (Quixilver)
Team Role: College Student
 
Join Date: Mar 2006
Rookie Year: 2001
Location: California
Posts: 654
Gabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond reputeGabe has a reputation beyond repute
Re: pic: Banebots carrier plates problem & solution

Excellent work and a rousing cheer!!! It's always good to hear teams solving problems on their own, especially these troubled transmissions.
__________________
Team site: Q U I X I L V E R
My favorite tool is my imagination; I’m always finding new ways to use it.
Reply With Quote
  #3   Spotlight this post!  
Unread 07-03-2007, 07:54
colin340 colin340 is offline
human
AKA: Colin Nobles
FRC #0148
Team Role: Teacher
 
Join Date: May 2005
Rookie Year: 2005
Location: rochester
Posts: 432
colin340 has a reputation beyond reputecolin340 has a reputation beyond reputecolin340 has a reputation beyond reputecolin340 has a reputation beyond reputecolin340 has a reputation beyond reputecolin340 has a reputation beyond reputecolin340 has a reputation beyond reputecolin340 has a reputation beyond reputecolin340 has a reputation beyond reputecolin340 has a reputation beyond reputecolin340 has a reputation beyond repute
Send a message via AIM to colin340
Re: pic: Banebots carrier plates problem & solution

ya we saw that to the problem was that a tolerance was - not + on the holes
__________________
61 77 77 20 77 69 74 74 6c 65 20 62 61 62 79 20 63 6f 6e 64 6f 72 20 69 73 20 72 65 61 64 69 6e 67 20 43 44
Reply With Quote
  #4   Spotlight this post!  
Unread 07-03-2007, 10:28
Uberbots's Avatar
Uberbots Uberbots is offline
Mad Programmer
AKA: Billy Sisson
FRC #1124 (ÜberBots)
Team Role: College Student
 
Join Date: Jan 2006
Rookie Year: 2005
Location: Avon
Posts: 739
Uberbots has a reputation beyond reputeUberbots has a reputation beyond reputeUberbots has a reputation beyond reputeUberbots has a reputation beyond reputeUberbots has a reputation beyond reputeUberbots has a reputation beyond reputeUberbots has a reputation beyond reputeUberbots has a reputation beyond reputeUberbots has a reputation beyond reputeUberbots has a reputation beyond reputeUberbots has a reputation beyond repute
Re: pic: Banebots carrier plates problem & solution

welding has worked very well for us... those carrier pins are not going anywhere.
__________________
A few of my favorite numbers:
175 176 177 195 230 558 716 1024 1071 1592 1784 1816
RPI 2012
BREAKAWAY
Reply With Quote
  #5   Spotlight this post!  
Unread 07-03-2007, 14:51
techtiger1's Avatar
techtiger1 techtiger1 is offline
Coach Drew?!?!
AKA: Drew Disbury
FRC #1251 (TechTigers)
Team Role: Mentor
 
Join Date: Jul 2004
Rookie Year: 2004
Location: coconut creek ,fl
Posts: 629
techtiger1 has a reputation beyond reputetechtiger1 has a reputation beyond reputetechtiger1 has a reputation beyond reputetechtiger1 has a reputation beyond reputetechtiger1 has a reputation beyond reputetechtiger1 has a reputation beyond reputetechtiger1 has a reputation beyond reputetechtiger1 has a reputation beyond reputetechtiger1 has a reputation beyond reputetechtiger1 has a reputation beyond reputetechtiger1 has a reputation beyond repute
Send a message via AIM to techtiger1
Re: pic: Banebots carrier plates problem & solution

While welding the pins is a great idea and solution to the problem it still doesn't help the fact of the tolerances on the gearbox aren't great and that some teams are asking way too much of these motors. Props to 237 though on comming up with some sort of solution.

-Drew
__________________
Team 1251 The TechTigers
"Inspiring future innovators, one stripe at a time"
2004 Rookie All Star Orlando Regional
2006 Palmetto Regional Winner
2007 Orlando Regional Winner
2008 Orlando Regional Winner
2010 Orlando Regional Winner
2013 South Florida Regional Winner
Reply With Quote
  #6   Spotlight this post!  
Unread 07-03-2007, 18:28
Ted Boucher Ted Boucher is offline
Its been awhile.....
FRC #0237 (Black Magic Robotics)
Team Role: Engineer
 
Join Date: Oct 2003
Rookie Year: 2003
Location: Watertown, CT
Posts: 281
Ted Boucher has a reputation beyond reputeTed Boucher has a reputation beyond reputeTed Boucher has a reputation beyond reputeTed Boucher has a reputation beyond reputeTed Boucher has a reputation beyond reputeTed Boucher has a reputation beyond reputeTed Boucher has a reputation beyond reputeTed Boucher has a reputation beyond reputeTed Boucher has a reputation beyond reputeTed Boucher has a reputation beyond reputeTed Boucher has a reputation beyond repute
Re: pic: Banebots carrier plates problem & solution

To add what I forgot to tell elgin:

1. That picture of the pins out are of a NEW carrier plate, not the old one. The plates were installed friday morning and the gearboxes were opened that afternoon to change to a dual transmission setup. I think that comes to only 6 matches played with the new plates in.

2. We measured the top of the hole, and the bottom of the hole. the top of the hole were the pin was allowed to move was ovaled out and .02 inch different then the bottom of the hole.

Hopefully this fix helps some of you, I would recommend taking a peak into the gearbox to see if you have this situation before it becomes a serious problem.
__________________
FRC Team 237 Alumni (04-07)
Western New England College Class of 2011
FRC Team 237 Mentor (11-?)
Reply With Quote
  #7   Spotlight this post!  
Unread 07-03-2007, 22:57
DonRotolo's Avatar
DonRotolo DonRotolo is offline
Back to humble
FRC #0832
Team Role: Mentor
 
Join Date: Jan 2005
Rookie Year: 2005
Location: Atlanta GA
Posts: 7,007
DonRotolo has a reputation beyond reputeDonRotolo has a reputation beyond reputeDonRotolo has a reputation beyond reputeDonRotolo has a reputation beyond reputeDonRotolo has a reputation beyond reputeDonRotolo has a reputation beyond reputeDonRotolo has a reputation beyond reputeDonRotolo has a reputation beyond reputeDonRotolo has a reputation beyond reputeDonRotolo has a reputation beyond reputeDonRotolo has a reputation beyond repute
Re: pic: Banebots carrier plates problem & solution

...wish we had access to a welder...

Don
__________________

I am N2IRZ - What's your callsign?
Reply With Quote
  #8   Spotlight this post!  
Unread 07-03-2007, 23:08
Elgin Clock's Avatar
Elgin Clock Elgin Clock is offline
updates this status less than FB!
AKA: the one who "will break into your thoughts..."
FRC #0237 (Black Magic)
Team Role: Mentor
 
Join Date: May 2001
Rookie Year: 2001
Location: H20-Town, Connecticut
Posts: 7,773
Elgin Clock has a reputation beyond reputeElgin Clock has a reputation beyond reputeElgin Clock has a reputation beyond reputeElgin Clock has a reputation beyond reputeElgin Clock has a reputation beyond reputeElgin Clock has a reputation beyond reputeElgin Clock has a reputation beyond reputeElgin Clock has a reputation beyond reputeElgin Clock has a reputation beyond reputeElgin Clock has a reputation beyond reputeElgin Clock has a reputation beyond repute
Send a message via AIM to Elgin Clock
Re: pic: Banebots carrier plates problem & solution

Quote:
Originally Posted by Don Rotolo View Post
...wish we had access to a welder...

Don
Hopefully there is one (or more) at your only source of repairs on site at a competition, your "FIRST approved machine shop".
__________________
The influence of many leads to the individuality of one. - E.C.C. (That's me!!)


Last edited by Elgin Clock : 08-03-2007 at 02:04.
Reply With Quote
  #9   Spotlight this post!  
Unread 08-03-2007, 01:34
eugenebrooks eugenebrooks is offline
Team Role: Engineer
AKA: Dr. Brooks
no team (WRRF)
 
Join Date: Jan 2004
Rookie Year: 2001
Location: Livermore, CA
Posts: 601
eugenebrooks has a reputation beyond reputeeugenebrooks has a reputation beyond reputeeugenebrooks has a reputation beyond reputeeugenebrooks has a reputation beyond reputeeugenebrooks has a reputation beyond reputeeugenebrooks has a reputation beyond reputeeugenebrooks has a reputation beyond reputeeugenebrooks has a reputation beyond reputeeugenebrooks has a reputation beyond reputeeugenebrooks has a reputation beyond reputeeugenebrooks has a reputation beyond repute
Re: pic: Banebots carrier plates problem & solution

Quote:
Originally Posted by Don Rotolo View Post
...wish we had access to a welder...

Don
There is usually a TIG welder available at the machine shop
provided in the competition venue. The replacement parts
desk will have a bag of hardened carrier plates for teams to
swap into their transmissions. As soon as you arrive at the
pits, dispatch someone to get two carrier plates and line up
at the welding station to have the pits tacked into place.
It will only take a minute or two with the welder. You can
service the gear boxes on Thursday evening before the
competition matches start.
Reply With Quote
  #10   Spotlight this post!  
Unread 08-03-2007, 18:36
DonRotolo's Avatar
DonRotolo DonRotolo is offline
Back to humble
FRC #0832
Team Role: Mentor
 
Join Date: Jan 2005
Rookie Year: 2005
Location: Atlanta GA
Posts: 7,007
DonRotolo has a reputation beyond reputeDonRotolo has a reputation beyond reputeDonRotolo has a reputation beyond reputeDonRotolo has a reputation beyond reputeDonRotolo has a reputation beyond reputeDonRotolo has a reputation beyond reputeDonRotolo has a reputation beyond reputeDonRotolo has a reputation beyond reputeDonRotolo has a reputation beyond reputeDonRotolo has a reputation beyond reputeDonRotolo has a reputation beyond repute
Re: pic: Banebots carrier plates problem & solution

Not a bad idea. It'll take a few hours to pull the trannies and then the plates, deliver them to the shop - then I need to hope the shop gets them back to us in time to reassemble everything & get to inspection.

Honestly, I'm really not sure we have the time.

When the plates went in, we did check the pins really carefully, they were all a press fit.

In any case, it's not my decision, I'm just a consultant - the students need to think this out and decide what they want to do.

Don
__________________

I am N2IRZ - What's your callsign?
Reply With Quote
  #11   Spotlight this post!  
Unread 08-03-2007, 19:18
eugenebrooks eugenebrooks is offline
Team Role: Engineer
AKA: Dr. Brooks
no team (WRRF)
 
Join Date: Jan 2004
Rookie Year: 2001
Location: Livermore, CA
Posts: 601
eugenebrooks has a reputation beyond reputeeugenebrooks has a reputation beyond reputeeugenebrooks has a reputation beyond reputeeugenebrooks has a reputation beyond reputeeugenebrooks has a reputation beyond reputeeugenebrooks has a reputation beyond reputeeugenebrooks has a reputation beyond reputeeugenebrooks has a reputation beyond reputeeugenebrooks has a reputation beyond reputeeugenebrooks has a reputation beyond reputeeugenebrooks has a reputation beyond repute
Re: pic: Banebots carrier plates problem & solution

Read my suggestion more carefully.

Eugene




Quote:
Originally Posted by Don Rotolo View Post
Not a bad idea. It'll take a few hours to pull the trannies and then the plates, deliver them to the shop - then I need to hope the shop gets them back to us in time to reassemble everything & get to inspection.

Honestly, I'm really not sure we have the time.

When the plates went in, we did check the pins really carefully, they were all a press fit.

In any case, it's not my decision, I'm just a consultant - the students need to think this out and decide what they want to do.

Don
Reply With Quote
  #12   Spotlight this post!  
Unread 08-03-2007, 19:39
Teched3 Teched3 is offline
Hodge1
FRC #0175 (BuzzRobotics)
Team Role: Mentor
 
Join Date: Apr 2006
Rookie Year: 1996
Location: Connecticut
Posts: 319
Teched3 has much to be proud ofTeched3 has much to be proud ofTeched3 has much to be proud ofTeched3 has much to be proud ofTeched3 has much to be proud ofTeched3 has much to be proud ofTeched3 has much to be proud ofTeched3 has much to be proud ofTeched3 has much to be proud of
Re: pic: Banebots carrier plates problem & solution

Do not run with the hardened plates without at least welding the pins. Get replacement plates and have someone wait while you're pulling the trannies. You should be able to disassemble from the front mounting plate if you can get at all 4 retaining screws. you shouldn't have to take out the front mounting plate/output shaft. This may simplify you changeover. Then be certain the tranny housing is pushed up square to the front mounting plate before lightly tightening the retaining screws, turn the driveline to help center the housing with the front plate and tighten screws carefully. Check that the sytem is turning easily, as any misalignment will cause binding in the gears. Good Luck!!
Reply With Quote
  #13   Spotlight this post!  
Unread 09-03-2007, 20:26
kevin.li.rit's Avatar
kevin.li.rit kevin.li.rit is offline
Imaginary Friend
AKA: Kevin Li
FRC #0596 (SciClones)
Team Role: Student
 
Join Date: Jan 2003
Rookie Year: 2001
Location: Hopkinton, Massachusetts
Posts: 936
kevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond repute
Send a message via Yahoo to kevin.li.rit
Re: pic: Banebots carrier plates problem & solution

I really wish I knew the pins would fall out before today. We had them fall out on one drive after the third match at finger lakes.

How common is this failure?
__________________
Kevin Li

596 - Sciclones
1405 - Finney Falcons
2262 - Holliston Panthers

Last edited by kevin.li.rit : 09-03-2007 at 20:31.
Reply With Quote
  #14   Spotlight this post!  
Unread 09-03-2007, 20:54
dapub dapub is offline
Registered User
FRC #1991 (The Dragons)
Team Role: Engineer
 
Join Date: Mar 2005
Rookie Year: 2005
Location: Hartford, CT
Posts: 34
dapub has a spectacular aura aboutdapub has a spectacular aura aboutdapub has a spectacular aura about
Re: pic: Banebots carrier plates problem & solution

We ran all of our seeding matches (8) and then the quarter finals with the hardened plates.... that were not welded. Without any problem. We are using 4 gearboxes - one on each of our mecanum wheels.

But we have not pulled them to inspect them. Maybe we have just been lucky.
__________________
***************************************
Reply With Quote
  #15   Spotlight this post!  
Unread 10-03-2007, 07:50
Teched3 Teched3 is offline
Hodge1
FRC #0175 (BuzzRobotics)
Team Role: Mentor
 
Join Date: Apr 2006
Rookie Year: 1996
Location: Connecticut
Posts: 319
Teched3 has much to be proud ofTeched3 has much to be proud ofTeched3 has much to be proud ofTeched3 has much to be proud ofTeched3 has much to be proud ofTeched3 has much to be proud ofTeched3 has much to be proud ofTeched3 has much to be proud ofTeched3 has much to be proud of
Re: pic: Banebots carrier plates problem & solution

Quote:
Originally Posted by dapub View Post
We ran all of our seeding matches (8) and then the quarter finals with the hardened plates.... that were not welded. Without any problem. We are using 4 gearboxes - one on each of our mecanum wheels.

But we have not pulled them to inspect them. Maybe we have just been lucky.
The holes on the plate were too large, and tapered, so the engagement is only about 1/3 the thickness of the plate. That coupled with the fact that the pins are shorter than the orginal, will allow them to work out toward the thrust plate, and come loose. It's only a matter of time before they will fail without warning. Be prudent, and get a set welded at the machine shop, and replace them when you have time. We took the hardened plates, re-drilled and reamed new holes in between the original holes, and press fit proper length pins into the plates with Loctite. Until we can change them at Chesapeake, we are running the original softer plates because we can monitor the Double D hole failure by checking backlash in the drive to see if it increases.
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
Anyone lost thier BaneBots Carrier pins? StevenB Technical Discussion 50 30-03-2007 00:40
pic: Carrier plate deathbycornchip Extra Discussion 2 18-02-2007 10:51
HELP needed, problem with streamling, need uploading space or diffrent solution... Nimmy General Forum 5 15-02-2006 11:18


All times are GMT -5. The time now is 01:56.

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