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05-15-2010, 10:54 AM
| #1 |
| Pebble Pounder Join Date: Jan 2010 Location: Woodstock
Posts: 100
|  Motor Cooling Help
I was driving my truck the other day and had be goin for quite some time, so i decided to give it a rest, i touched the motor and nearly gave myself a blister...THE MOTOR WAS FLAMIN'!!!!  I need to do something about the cooling, i would draw up a heat sink on SolidWorks or something, but i am outta luck when it comes to a CNC, any idea? fans? am i the only one with this problem?
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05-15-2010, 11:16 AM
| #2 |
| Rock Crawler  Join Date: Mar 2009 Location: West of Eugene, OR
Posts: 942
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That motor can and does get hot; hotter with 2s, of course.  Short of a different motor there are a few things you can do: make sure nothing is binding, or is binding as little as possible. Making sure things are lubed is always good, too. If you've modified much of the rig make sure the drive shafts aren't at extreme angles. Weight loss will also help but other performance considerations may suffer. A lighter throttle finger will always help; with that, if you're trying to use wheel speed to get over stuff, try altering your driving style or making small modifications to the rig so she handles better without needing the wheel speed. Or, you could always crawl in a big Walk In Refer.  |
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05-15-2010, 08:21 PM
| #3 |
| Rock Crawler Join Date: Aug 2009 Location: Sandy Oregon
Posts: 517
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just what is "quite some time"? the easiest solution is to limit your run time and give the poor little motor a rest |
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05-15-2010, 08:21 PM
| #4 |
| Rock Crawler Join Date: Jul 2009 Location: waterville
Posts: 525
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yeah these motors do get really hot. my micro t is even worse. i think losi tried to solve that problem with the open spot on the motor. most motors will build heat at lower rpms. in my crawler i run a modded micro t aluminum tranny. there is a bit more gearing with it. the motor still gets hot, but i can touch it without cooking myself. i would love to put a bigger pack on mine, but with more run time more heat. with mine it could also be the tranny dissipating heat more as well cause that gets quite warm. i also have a dp torsion chassis. with alot of weight. with more weight the more work the motor has to do. just take a break every so often. i know it sucks, but for now it may be the only thing you can do for it.
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05-15-2010, 08:28 PM
| #5 |
| Pebble Pounder Join Date: Jan 2010 Location: Woodstock
Posts: 100
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haha, i guess the issue would be lowering my run time, i drove it off of a 500mah 2s lipo for, eh, 45 minutes or so  it held up well, and unfortunately, i can't shed weight with my build the way it is, i would not be surprised if i had one of if not the most heaviest micros out there...it is a beast, i need to find a digital scale to weigh it. i thought about integrating a cooling fan into the slot where the stock battery used to fit, w/e i'll figure somethin out  |
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05-16-2010, 05:45 AM
| #6 |
| Quarry Creeper Join Date: Jan 2010 Location: Floyds Knobs, IN
Posts: 286
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i recantly got the motor so frickin hot, it melted hhe solder off of the motor wires!  yeah, so, this kinda got awkard.
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05-16-2010, 08:48 AM
| #7 | |
| Rock Crawler Join Date: Mar 2009 Location: West of Eugene, OR
Posts: 942
| Quote:
 Last edited by JeepinOR; 05-16-2010 at 08:58 AM. | |
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05-16-2010, 09:23 AM
| #8 |
| Quarry Creeper Join Date: Jan 2010 Location: Floyds Knobs, IN
Posts: 286
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there are a couple reasons this happened 1:friend driving 2:cheap a#@ solder done by self 3:used a screw driver and a propane torch in place of a iron to solder it. 4:A FRIEND WAS DRIVING!* * this friend thinks rock racing and rock crawling are the same thing. Last edited by losilover; 05-16-2010 at 09:28 AM. |
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05-16-2010, 10:10 PM
| #9 |
| Pebble Pounder Join Date: Jan 2010 Location: Woodstock
Posts: 100
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melted the sodlder wow, i have never heard of that happening, lololol, doesn't make me feel so bad now. I found some fans online that were about half to 3/4's the size of a quarter, that would be sweet to install
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05-16-2010, 11:36 PM
| #10 |
| Pebble Pounder Join Date: Mar 2010 Location: Crest Hill
Posts: 196
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could you post a link to those fans. i'm using a novak that 25mm x 25mm and its a bit big but helps.
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05-17-2010, 07:48 AM
| #11 |
| Rock Crawler Join Date: Mar 2009 Location: West of Eugene, OR
Posts: 942
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Friends don't let friends bash their crawler. What kind of solder did you use - so others can avoid the same? Micro fans, eh? |
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05-17-2010, 11:10 AM
| #12 |
| Pebble Pounder Join Date: Jan 2010 Location: Woodstock
Posts: 100
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here is the link to the fans: http://www2.electronicproducts.com/M...2007-html.aspx it is small enough for me to consider if it will do much, lol, the article links you to Jaro Thermal somethin' or other, they have a variety on their site, haven't found a site that sells them, but i'm sure they are out there |
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05-17-2010, 01:13 PM
| #13 | |
| Quarry Creeper Join Date: Jan 2010 Location: Floyds Knobs, IN
Posts: 286
| Quote:
aproximently 10-15 years old oh and it happend during a top speed drag race with a micro t. we lost | |
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05-18-2010, 06:19 AM
| #14 |
| Newbie Join Date: Apr 2010 Location: York
Posts: 12
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this is what I did, before I could almost burn myself on the motor now it is hot but I can keep my finger on the motor. but I also did work to the truck so it crawls better so I need less skinny pedal which helps the motor out  |
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05-18-2010, 08:07 AM
| #15 |
| Pebble Pounder Join Date: Jan 2010 Location: Woodstock
Posts: 100
| dude, that is sick!!!! do you have a CNC machine?! i want to make something like that but i don't have the resources, lol, sweet deal you got there
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05-18-2010, 08:39 AM
| #16 | |
| Newbie Join Date: Apr 2010 Location: York
Posts: 12
| Quote:
   Last edited by bkotzman; 05-18-2010 at 08:43 AM. | |
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