Go to Post ...because "someone on ChiefDelphi said so," doesn't fly when your robot can't pass inspection. - Madison [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 10-01-2008, 01:08
lifted_chevy lifted_chevy is offline
Registered User
None #2345
 
Join Date: Jan 2008
Location: missouri
Posts: 3
lifted_chevy is an unknown quantity at this point
Fisher price motors

I was just wondering if anyone has heard anything bad about the fisher price stuff. I've heard that they r bad and can over heat.
  #2   Spotlight this post!  
Unread 10-01-2008, 01:17
Drwurm's Avatar
Drwurm Drwurm is offline
Electrical Alumni
AKA: Jason "Powercoach" Osmann
FRC #0294 (Beach Cities Robotics)
Team Role: Alumni
 
Join Date: Jan 2007
Rookie Year: 2006
Location: Los Angeles
Posts: 151
Drwurm is a glorious beacon of lightDrwurm is a glorious beacon of lightDrwurm is a glorious beacon of lightDrwurm is a glorious beacon of lightDrwurm is a glorious beacon of light
Send a message via AIM to Drwurm
Re: Fisher price motors

FP motors are great motors. They are very strong and many veteran teams make use of them regularly.
If you're worried about overheating, you can couple 2 victor sized fans to the body of the motor.
__________________
Electrical Engineer (in training)

Also grows carnivorous plants.

BEACH CITIES ROBOTICS:
2007 FTC "Quad Quandary" World Champions
  #3   Spotlight this post!  
Unread 10-01-2008, 01:59
AdamHeard's Avatar
AdamHeard AdamHeard is offline
Lead Mentor
FRC #0973 (Greybots)
Team Role: Mentor
 
Join Date: Oct 2004
Rookie Year: 2004
Location: Atascadero
Posts: 5,526
AdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond repute
Send a message via AIM to AdamHeard
Re: Fisher price motors

Quote:
Originally Posted by Drwurm View Post
FP motors are great motors. They are very strong and many veteran teams make use of them regularly.
If you're worried about overheating, you can couple 2 victor sized fans to the body of the motor.
Mostly right. Just left some details out.....

They don't like to be stalled, so avoid conditions in which they will be.
  #4   Spotlight this post!  
Unread 10-01-2008, 02:04
Scott Morgan Scott Morgan is offline
Registered User
None #1138
 
Join Date: Mar 2005
Rookie Year: 2004
Location: Los Angeles
Posts: 129
Scott Morgan has a spectacular aura aboutScott Morgan has a spectacular aura aboutScott Morgan has a spectacular aura about
Re: Fisher price motors

The Fisher Price motors are some of my favorite motors in the kit. They're light but powerful.

That said they are likely to overheat if they are stalled, but I would say that if used properly they are very reliable.
  #5   Spotlight this post!  
Unread 16-01-2008, 22:56
lifted_chevy lifted_chevy is offline
Registered User
None #2345
 
Join Date: Jan 2008
Location: missouri
Posts: 3
lifted_chevy is an unknown quantity at this point
Re: Fisher price motors

Thanks everyone for your help
does anyone have any info on how to make a forklift
  #6   Spotlight this post!  
Unread 16-01-2008, 23:05
JB987 JB987 is offline
Registered User
AKA: Joe Barry
FRC #0987 (HIGH ROLLERS)
Team Role: Coach
 
Join Date: May 2006
Rookie Year: 2002
Location: LAS VEGAS
Posts: 1,177
JB987 has a reputation beyond reputeJB987 has a reputation beyond reputeJB987 has a reputation beyond reputeJB987 has a reputation beyond reputeJB987 has a reputation beyond reputeJB987 has a reputation beyond reputeJB987 has a reputation beyond reputeJB987 has a reputation beyond reputeJB987 has a reputation beyond reputeJB987 has a reputation beyond reputeJB987 has a reputation beyond repute
Re: Fisher price motors

Has any team had any luck finding a place to buy additional FP motors??? We have put hours into online searches and phone calls to many possible sources, including of course Fisher Price, and Mattel and they as well as several service centers told us that due to liability (fire based recalls) that they can't sell motors/gearboxes anymore...they can only install them themselves...can anyone out there graciously help out?
  #7   Spotlight this post!  
Unread 16-01-2008, 23:15
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: Fisher price motors

hmm... two questions Mr. Barry,

1. have you considered looking at products in which they come and ripping them out of there?

2. are you allowed to use more than two? I thought two was the limit.

good luck, vivek
__________________
"we don't build robots, we build people"
  #8   Spotlight this post!  
Unread 16-01-2008, 23:19
EricH's Avatar
EricH EricH is offline
New year, new team
FRC #1197 (Torbots)
Team Role: Engineer
 
Join Date: Jan 2005
Rookie Year: 2003
Location: SoCal
Posts: 19,823
EricH has a reputation beyond reputeEricH has a reputation beyond reputeEricH has a reputation beyond reputeEricH has a reputation beyond reputeEricH has a reputation beyond reputeEricH has a reputation beyond reputeEricH has a reputation beyond reputeEricH has a reputation beyond reputeEricH has a reputation beyond reputeEricH has a reputation beyond reputeEricH has a reputation beyond repute
Re: Fisher price motors

Quote:
Originally Posted by vivek16 View Post
hmm... two questions Mr. Barry,

1. have you considered looking at products in which they come and ripping them out of there?

2. are you allowed to use more than two? I thought two was the limit.

good luck, vivek
Two is the limit, but there is no limit as to spares.

As for them not selling the motor, try telling them that you are with the FIRST robotic competition. They might understand why you need only the motor then.
__________________
Past teams:
2003-2007: FRC0330 BeachBots
2008: FRC1135 Shmoebotics
2012: FRC4046 Schroedinger's Dragons

"Rockets are tricky..."--Elon Musk

  #9   Spotlight this post!  
Unread 16-01-2008, 23:49
65_Xero_Huskie's Avatar
65_Xero_Huskie 65_Xero_Huskie is offline
One T
AKA: Mat
no team
Team Role: Mentor
 
Join Date: Jan 2005
Rookie Year: 2004
Location: Michigan
Posts: 697
65_Xero_Huskie has a reputation beyond repute65_Xero_Huskie has a reputation beyond repute65_Xero_Huskie has a reputation beyond repute65_Xero_Huskie has a reputation beyond repute65_Xero_Huskie has a reputation beyond repute65_Xero_Huskie has a reputation beyond repute65_Xero_Huskie has a reputation beyond repute65_Xero_Huskie has a reputation beyond repute65_Xero_Huskie has a reputation beyond repute65_Xero_Huskie has a reputation beyond repute65_Xero_Huskie has a reputation beyond repute
Re: Fisher price motors

Quote:
Originally Posted by lifted_chevy View Post
I was just wondering if anyone has heard anything bad about the fisher price stuff. I've heard that they r bad and can over heat.
We always use Fisher Price motors, and the only way they can go bad is if you engineer something that isnt up to the Fisher Price standards. Id have to say they have been the staple to our past couple years of drivetrain.
__________________
Min-Max to the Max!
  #10   Spotlight this post!  
Unread 17-01-2008, 00:04
Andy A. Andy A. is offline
Getting old
FRC #0095
Team Role: Coach
 
Join Date: Jun 2001
Rookie Year: 2001
Location: New Hampshire
Posts: 1,017
Andy A. has a reputation beyond reputeAndy A. has a reputation beyond reputeAndy A. has a reputation beyond reputeAndy A. has a reputation beyond reputeAndy A. has a reputation beyond reputeAndy A. has a reputation beyond reputeAndy A. has a reputation beyond reputeAndy A. has a reputation beyond reputeAndy A. has a reputation beyond reputeAndy A. has a reputation beyond reputeAndy A. has a reputation beyond repute
Re: Fisher price motors

The fisher-price motor has been with FIRST for years, in various models and makes. They all are around a 100 watt motor in a 550 can. They have, far and away, the highest power to weight/volume ratio of any motor in the kit.

The downside of that power in a small package is heat. These motors will very quickly overheat and fry if allowed to stall or even under load at low speed. They work fantasticly, right up to that critical temperature where the insulation melts. Reach that and the motor dies in seconds. There are ways to avoid that point, however.

1. Don't worry much about using heat sinks and fans etc. These motors, like all motors, overheat in the windings. Cooling the can doesn't do you any good over the course of a two minute match and the duty cycle these motors encounter. By the time the heat makes it through the end bearings to the can it's already done it's damage. If the rounds lasted longer and the motors ran a consistent speed the whole way through heat sinks and fans would make more sense.

2. Do not stall or overload the motor. I've heard 2/3 free speed kicked around as a good number to gear for. That means that you should gear such that, loaded, the motor should not drop below 2/3's of it's free speed.

3. Do not block the cooling vents. These motors have plastic fins attached to the back end of the armature shaft. These provide the only real means of 'active' cooling. If you don't block the vents and keep the motor spinning fast they are perfectly adequate at keeping the motor from frying. Let it get too hot and the fins melt off. After that happens it's about 3 seconds before all the magic smoke comes out. As always, the faster these motors are spinning the happier they are.

4. If at all possible, keep the vents on the front of the motor clear. If you can stand off the motor just a little bit to keep the front vents open then a good deal of air from the fan will pass over the armature and right out the front. I can't offer any hard data on how much this improves cooling, but it can only help.

5. In between back to back matches you can hose the motor down with cool-in-a-can or compressed air cans turned upside down. It's not good for the motor but it's probably better then running into a match preheated.

Always keep in mind that these motors have to make it through two minute matches at a time. You can get away with just about anything short of a stall or low speed under load. If you get through a day of matches on one set of FP motors, I consider it a win. Balance the longevity and health of the motor against the design of your robot. Maybe beating the snot out of the motors is the only way to get something to work right on the robot. If so, then balance that against your budget and ability to find replacements.

-Andy A.
  #11   Spotlight this post!  
Unread 17-01-2008, 00:27
popo308's Avatar
popo308 popo308 is offline
Registered User
AKA: Brent
FRC #1625 (Winnovation)
Team Role: Alumni
 
Join Date: Jan 2007
Rookie Year: 2006
Location: Winnebago, IL
Posts: 312
popo308 is a name known to allpopo308 is a name known to allpopo308 is a name known to allpopo308 is a name known to allpopo308 is a name known to allpopo308 is a name known to all
Send a message via AIM to popo308
Re: Fisher price motors

we found a place to buy them last year i will see if i can dig the site back up for you guys ill get back to you on that!
  #12   Spotlight this post!  
Unread 17-01-2008, 00:32
JB987 JB987 is offline
Registered User
AKA: Joe Barry
FRC #0987 (HIGH ROLLERS)
Team Role: Coach
 
Join Date: May 2006
Rookie Year: 2002
Location: LAS VEGAS
Posts: 1,177
JB987 has a reputation beyond reputeJB987 has a reputation beyond reputeJB987 has a reputation beyond reputeJB987 has a reputation beyond reputeJB987 has a reputation beyond reputeJB987 has a reputation beyond reputeJB987 has a reputation beyond reputeJB987 has a reputation beyond reputeJB987 has a reputation beyond reputeJB987 has a reputation beyond reputeJB987 has a reputation beyond repute
Re: Fisher price motors

Quote:
Originally Posted by popo308 View Post
we found a place to buy them last year i will see if i can dig the site back up for you guys ill get back to you on that!
Thanks, Brent...hope you can help us, and all the others that may be looking for spare FP's.
  #13   Spotlight this post!  
Unread 17-01-2008, 00:34
popo308's Avatar
popo308 popo308 is offline
Registered User
AKA: Brent
FRC #1625 (Winnovation)
Team Role: Alumni
 
Join Date: Jan 2007
Rookie Year: 2006
Location: Winnebago, IL
Posts: 312
popo308 is a name known to allpopo308 is a name known to allpopo308 is a name known to allpopo308 is a name known to allpopo308 is a name known to allpopo308 is a name known to all
Send a message via AIM to popo308
Re: Fisher price motors

http://kidswheels.com/vmchk/Gearboxe...els-Other.html

Here is a link to a website that sells FP motors you will have to look around on the page a bit. They also sell different gearbox's for FP motors.

HOPE THIS IS WHAT YOUR LOOKING FOR
  #14   Spotlight this post!  
Unread 17-01-2008, 00:42
popo308's Avatar
popo308 popo308 is offline
Registered User
AKA: Brent
FRC #1625 (Winnovation)
Team Role: Alumni
 
Join Date: Jan 2007
Rookie Year: 2006
Location: Winnebago, IL
Posts: 312
popo308 is a name known to allpopo308 is a name known to allpopo308 is a name known to allpopo308 is a name known to allpopo308 is a name known to allpopo308 is a name known to all
Send a message via AIM to popo308
Re: Fisher price motors

http://kidswheels.com/Gearboxes-Powe...-19-Pitch.html
I believe that is the exact one they send with the KoP
  #15   Spotlight this post!  
Unread 17-01-2008, 00:51
Tristan Lall's Avatar
Tristan Lall Tristan Lall is offline
Registered User
FRC #0188 (Woburn Robotics)
 
Join Date: Aug 2001
Rookie Year: 1999
Location: Toronto, ON
Posts: 2,484
Tristan Lall has a reputation beyond reputeTristan Lall has a reputation beyond reputeTristan Lall has a reputation beyond reputeTristan Lall has a reputation beyond reputeTristan Lall has a reputation beyond reputeTristan Lall has a reputation beyond reputeTristan Lall has a reputation beyond reputeTristan Lall has a reputation beyond reputeTristan Lall has a reputation beyond reputeTristan Lall has a reputation beyond reputeTristan Lall has a reputation beyond repute
Re: Fisher price motors

Quote:
Originally Posted by popo308 View Post
http://kidswheels.com/Gearboxes-Powe...-19-Pitch.html
I believe that is the exact one they send with the KoP
Though the number of pinion teeth is the same, you absolutely must verify the model number on the motor itself. There are many Fisher-Price motors which have 19 teeth; only 00968-9015 is legal for 2008.
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
Fisher-Price Motors popo308 Motors 11 03-08-2007 22:05
Fisher Price Motors VerticalReality Motors 14 20-01-2007 03:31
Fisher Price Motors for Drill Motors archiver 2001 0 24-06-2002 00:22
Fisher Price Motors for Drill Motors archiver 2001 0 24-06-2002 00:22
4 fisher price motors? Jordan A. General Forum 2 12-01-2002 11:52


All times are GMT -5. The time now is 15:40.

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