Go to Post Now why did it take 24 pages for someone to think of that?? It's so obvious it's painful. - Nuttyman54 [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
  #16   Spotlight this post!  
Unread 04-04-2004, 22:05
dddriveman's Avatar
dddriveman dddriveman is offline
Former Driver 1038, 979
AKA: Driveman
FRC #1038 (Thunderhawks)
Team Role: Alumni
 
Join Date: Feb 2003
Rookie Year: 2001
Location: Dayton
Posts: 142
dddriveman has a spectacular aura aboutdddriveman has a spectacular aura about
Send a message via AIM to dddriveman
Re: Hot Motors

We use both the CIM's and the Drills Motors on each gear box. The CIM don't like to heat up very much at all. Our drill motors were a problem tough. So we put two of the large muffin fans at opposite side and reversed one. We than had a constant airflow going over the motors. Works great!!! You know we were rough at Buckeye ask team 306
__________________
"I'm sorry, after all he is just a wookie!"
  #17   Spotlight this post!  
Unread 04-04-2004, 22:13
Ryan F.'s Avatar
Ryan F. Ryan F. is offline
Registered User
no team
Team Role: Alumni
 
Join Date: Mar 2004
Rookie Year: 2003
Location: USA
Posts: 376
Ryan F. is a jewel in the roughRyan F. is a jewel in the roughRyan F. is a jewel in the rough
Re: Hot Motors

As long as the motors are being run how it was meant to simple solutions should work. All we did was stick one of the mini muffin fans right on top of the drill motor casing. IT's not perfect, but it worked pretty well. True you can't run those drill motors for a long time until they overheat, but I don't think any cooling mechanism would be perfect.

Simple is nice.
  #18   Spotlight this post!  
Unread 04-04-2004, 23:24
pryoplasm's Avatar
pryoplasm pryoplasm is offline
Pit Crew/Electrical
AKA: Russ
#0069
 
Join Date: Jan 2004
Location: Quincy, Ma
Posts: 73
pryoplasm can only hope to improve
Re: Hot Motors

ok, as an add on to my previous post about coolant spray, you do not want to add on so much that it drips or creates frost, thus avoiding what al warned about. and also, if you decide to use it, remember after running the motor for a long time, give it a rest, while the coolant spray might cool things down on the outside, the inner workings need to cool as well. and this shouldnt be a permanent fix for after every match. for instance, in the quater, semi, and finals, the fisher price motor that we use for our vacuum pump overheats a lot, almost to the point where in some matches before we caught on to the problem, it just didnt work.

just a heads up for anyone trying the spray coolant method
__________________
Cut these eyes, but I will see,
Kiss these lying lips for me,
Stroke this skin, and I will kneel,
Brutalize me, I will heal...
-KMFDM
  #19   Spotlight this post!  
Unread 05-04-2004, 22:14
aaronbr28040's Avatar
aaronbr28040 aaronbr28040 is offline
Registered User
AKA: Aaron Bradshaw
#0900 (Team Infinity)
Team Role: College Student
 
Join Date: Jan 2004
Rookie Year: 2004
Location: Raleigh, NC
Posts: 135
aaronbr28040 is just really niceaaronbr28040 is just really niceaaronbr28040 is just really niceaaronbr28040 is just really nice
Send a message via AIM to aaronbr28040
Re: Hot Motors

We have had no problems with drill motors overheating. They are in a dual motor gear box with the CIM motors and to my knowledge we have never tripped a breaker or heated up our motors. If you would like to see our transmission design it is already up on our website.......you may have to sort through some files to find it but I promise it is there.
http://neverland.ncssm.edu/robotics

Just go to the media page and then download the autodesk files. If you are heating them up in the short 2 minute period of competition then there could definately be a problem. Especially if you are getting them hot enough to desolder the motor leads and such. Also be careful running the boschs at really slow speeds for long periods of time as the fan is designed for a high speed motor and is not effective at low speeds.
-Aaron
__________________
@North Carolina State University
Team 900
North Carolina School of Science and Mathematics
AIM:aaronbr28040

  #20   Spotlight this post!  
Unread 05-04-2004, 23:25
pryoplasm's Avatar
pryoplasm pryoplasm is offline
Pit Crew/Electrical
AKA: Russ
#0069
 
Join Date: Jan 2004
Location: Quincy, Ma
Posts: 73
pryoplasm can only hope to improve
Re: Hot Motors

Quote:
Originally Posted by aaronbr28040
We have had no problems with drill motors overheating. They are in a dual motor gear box with the CIM motors and to my knowledge we have never tripped a breaker or heated up our motors. If you would like to see our transmission design it is already up on our website.......you may have to sort through some files to find it but I promise it is there.
http://neverland.ncssm.edu/robotics

Just go to the media page and then download the autodesk files. If you are heating them up in the short 2 minute period of competition then there could definately be a problem. Especially if you are getting them hot enough to desolder the motor leads and such. Also be careful running the boschs at really slow speeds for long periods of time as the fan is designed for a high speed motor and is not effective at low speeds.
-Aaron
yes the 2 minutes shouldnt mess things up too much. i believe the desoldering thing was another isolated thing that came up in the topic when we were discussing the destruction of drill motors via heat. as for the 2 minute thing again, well, 2 minutes is one thing, but when practicing before the shipping date, the drive team can go through quite a few batteries before letting it cool down, not a smart thing, but we try to give and take between them and the pit crew...
__________________
Cut these eyes, but I will see,
Kiss these lying lips for me,
Stroke this skin, and I will kneel,
Brutalize me, I will heal...
-KMFDM
  #21   Spotlight this post!  
Unread 11-07-2004, 00:34
Evan Austin Evan Austin is offline
out of my mind, be back later
no team
Team Role: Alumni
 
Join Date: May 2004
Rookie Year: 2003
Location: Vincennes, Indiana
Posts: 30
Evan Austin is an unknown quantity at this point
Exclamation Re: Hot Motors

Quote:
Originally Posted by Joe Ross
Make sure that your motors are geared low enough that they don't come close to stalling.
THat's for sure. In 2003, we used fisher price on our rear drive and we smoked 3 sets in St. Louis because of gearing problems. This year, we used chippewas geared fairly close to right and the motors never even got warm no matter how long we ran them
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
Looking for practice motors & extra tape drive parts? archiver 2000 1 23-06-2002 22:54
How do people get hot motors? archiver 2001 11 23-06-2002 22:24
Are your motors HOT? Matt Reiland Motors 8 29-01-2002 22:24
"Motors and Drive train edition" of Fresh From the Forum Ken Leung CD Forum Support 6 29-01-2002 12:32
Drill Motors TF8 Motors 19 12-12-2001 13:13


All times are GMT -5. The time now is 18:29.

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