Go to Post I always say find what works best for your team, for your given situation. Why should we rely on someone else to tell me what will work best for our situation? - JVN [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 17-01-2012, 10:20
Mr. Rogers's Avatar
Mr. Rogers Mr. Rogers is offline
That? That was in the CAD.
FRC #3539 (Byting Bulldogs)
Team Role: College Student
 
Join Date: Apr 2011
Rookie Year: 2011
Location: Romeo, MI
Posts: 67
Mr. Rogers will become famous soon enoughMr. Rogers will become famous soon enough
Motor Heat Sinks?

Can we fabricate them and use them. We thought about using 775 bane bots for the shooter, but constantly running, they will probably overheat. Anybody know?
__________________
Grow the roses of success!
2011 Archimedes 2nd seed,
2011 Waterford Champion, 2011 Troy Simi-Finalist,
2011 Waterford Rookie all star, 2011 Troy Rookie all star
http://www.bytingbulldogs.com/
  #2   Spotlight this post!  
Unread 17-01-2012, 10:37
pfreivald's Avatar
pfreivald pfreivald is offline
Registered User
AKA: Patrick Freivald
FRC #1551 (The Grapes of Wrath)
Team Role: Mentor
 
Join Date: Jan 2007
Rookie Year: 2001
Location: Naples, NY
Posts: 2,304
pfreivald has a reputation beyond reputepfreivald has a reputation beyond reputepfreivald has a reputation beyond reputepfreivald has a reputation beyond reputepfreivald has a reputation beyond reputepfreivald has a reputation beyond reputepfreivald has a reputation beyond reputepfreivald has a reputation beyond reputepfreivald has a reputation beyond reputepfreivald has a reputation beyond reputepfreivald has a reputation beyond repute
Re: Motor Heat Sinks?

Quote:
Originally Posted by Mr. Rogers View Post
Can we fabricate them and use them. We thought about using 775 bane bots for the shooter, but constantly running, they will probably overheat. Anybody know?
If they're running at speed, I imagine they'd be fine... But why would you run the motors at full speed the whole match?
__________________
Patrick Freivald -- Mentor
Team 1551
"The Grapes of Wrath"
Bausch & Lomb, PTC Corporation, and Naples High School

I write books, too!
  #3   Spotlight this post!  
Unread 17-01-2012, 10:47
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: Motor Heat Sinks?

If it is running a shooter, there is almost no load on it, and it won't overheat. What you have to worry about is "stalling" the motor, that is, when you apply a load that is more than the motor can turn, and also apply full electric power to the motor. That will burn up it up rather quickly. And the part that burns up is inside, so a heat sink really won't help. These motors have a cooling fan inside them that turns whenever the motor is turning.
  #4   Spotlight this post!  
Unread 17-01-2012, 10:50
drwisley's Avatar
drwisley drwisley is offline
FRC Coach
AKA: Dave
FRC #1756 (Argos)
Team Role: Coach
 
Join Date: Jan 2010
Rookie Year: 2007
Location: Peoria, IL
Posts: 58
drwisley has a brilliant futuredrwisley has a brilliant futuredrwisley has a brilliant futuredrwisley has a brilliant futuredrwisley has a brilliant futuredrwisley has a brilliant futuredrwisley has a brilliant futuredrwisley has a brilliant futuredrwisley has a brilliant futuredrwisley has a brilliant futuredrwisley has a brilliant future
Re: Motor Heat Sinks?

The 550s will overheat and I've used the fans from the KoP for additional cooling in the past, which worked well. The 775s appear to have a much larger fan integrated into the case and produce less heat at 12V than the 550s. If you stall them for more than a couple seconds, they will be toast.
  #5   Spotlight this post!  
Unread 17-01-2012, 22:07
Mr. Rogers's Avatar
Mr. Rogers Mr. Rogers is offline
That? That was in the CAD.
FRC #3539 (Byting Bulldogs)
Team Role: College Student
 
Join Date: Apr 2011
Rookie Year: 2011
Location: Romeo, MI
Posts: 67
Mr. Rogers will become famous soon enoughMr. Rogers will become famous soon enough
Re: Motor Heat Sinks?

We thought about using 2 775's in shooter, they won't be stalled, and won't run for too long, unless we stay in the key, but if we ran them in the drive-train in addition to 2 cims, and we stalled them a lot, how much would heat sinking them help? Should we just use the fans, or both?
__________________
Grow the roses of success!
2011 Archimedes 2nd seed,
2011 Waterford Champion, 2011 Troy Simi-Finalist,
2011 Waterford Rookie all star, 2011 Troy Rookie all star
http://www.bytingbulldogs.com/
  #6   Spotlight this post!  
Unread 17-01-2012, 22:30
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
Smile Re: Motor Heat Sinks?

Make sure you maintain air passages to the intakes at the front of the motor, or the internal fan won't move any air. Same holds true for the Fisher Price motors.
__________________
Sweat the details
Why is there never enough time to do it right, but always enough time to do it again!
Even if you're on the right track, if you sit still, you'll get run over!!!

Last edited by Teched3 : 17-01-2012 at 22:31. Reason: Added info
  #7   Spotlight this post!  
Unread 17-01-2012, 22:44
Mr. Rogers's Avatar
Mr. Rogers Mr. Rogers is offline
That? That was in the CAD.
FRC #3539 (Byting Bulldogs)
Team Role: College Student
 
Join Date: Apr 2011
Rookie Year: 2011
Location: Romeo, MI
Posts: 67
Mr. Rogers will become famous soon enoughMr. Rogers will become famous soon enough
Re: Motor Heat Sinks?

Great tips to know!
__________________
Grow the roses of success!
2011 Archimedes 2nd seed,
2011 Waterford Champion, 2011 Troy Simi-Finalist,
2011 Waterford Rookie all star, 2011 Troy Rookie all star
http://www.bytingbulldogs.com/
  #8   Spotlight this post!  
Unread 18-01-2012, 08:14
Unsung FIRST Hero
Al Skierkiewicz Al Skierkiewicz is offline
Broadcast Eng/Chief Robot Inspector
AKA: Big Al WFFA 2005
FRC #0111 (WildStang)
Team Role: Engineer
 
Join Date: Jun 2001
Rookie Year: 1996
Location: Wheeling, IL
Posts: 10,798
Al Skierkiewicz has a reputation beyond reputeAl Skierkiewicz has a reputation beyond reputeAl Skierkiewicz has a reputation beyond reputeAl Skierkiewicz has a reputation beyond reputeAl Skierkiewicz has a reputation beyond reputeAl Skierkiewicz has a reputation beyond reputeAl Skierkiewicz has a reputation beyond reputeAl Skierkiewicz has a reputation beyond reputeAl Skierkiewicz has a reputation beyond reputeAl Skierkiewicz has a reputation beyond reputeAl Skierkiewicz has a reputation beyond repute
Re: Motor Heat Sinks?

Heatsinks do very little for motors. The majority of the heat is generated in the armature. the only path for conduction of this heat is through the shafts at either end of the motor. While teams claim they work, I feel they serve more to put the team at ease. In the case of motors with open holes, like the FP motors, there are internal fans to help cool the motors. Keep the holes unobstructed and design for the motor operational speed to be in an efficient part of the curve and the fans will do their job. They can't cool if they aren't turning.
__________________
Good Luck All. Learn something new, everyday!
Al
WB9UVJ
www.wildstang.org
________________________
Storming the Tower since 1996.
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


All times are GMT -5. The time now is 15:32.

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