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Old Aug 30, 2014, 02:21 PM
Official Boat Bum
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Radio Shack, retail? Or McMaster Carr
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Old Aug 30, 2014, 02:48 PM
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United States, CT, Oxford
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Originally Posted by Eddie P View Post
Radio Shack, retail? Or McMaster Carr
Thanks Eddie

What's it called?
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Old Aug 30, 2014, 11:32 PM
Official Boat Bum
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United States, NV, Reno
Joined Mar 2000
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If you want the "poop" on thermal grease it seems the computer guys are "hot" on the topic. A lot of them say "no-name Radio Shack" thermal grease (thermal compound) is just the same as high priced stuff but then again there is the standard, age old arguing that goes on surrounding name brands and generic. A lot of folks seem to recommend "Arctic Silver" grease. I don't know.

Suffice it to say, no mater what brand you use, the key is using a "very thin" layer of grease and only that, to then connect the heat sink. You don't want "thick". The grease does nothing except create a good layer that can account for "minor surface variations" between the heat sink and the the surface of the heat maker. Then there has to be some sort of physical hold in place to keep the heat sink in place. In the case of your motor and the heat sink, I'm thinking "HET" sorta thing where it fits in place? Is that the setup you are using?
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Old Aug 31, 2014, 12:58 AM
efflux RC's Avatar
United States, CA, Santa Clarita
Joined Aug 2009
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We stock (and use) only Arctic silver 5 (silver bearing) thermal compound.
It's a couple of bucks less than radio Shack.
When I assemble a Jet fan the motor is positioned radially so that the etched motor # is lined up with one of the stators. (in most cases The motor number will be visible within the split area of the heat sink.
I apply a very thin layer to the inside of the heat sink, and the outer dia of the motor that protrudes from the fan housing. The heat sink is then squeezed to obtain the tightest fit possible. then opened just enough to slide it on with out squeeging the compound off. The heat sink is then rotated one full turn to assure the best even contact. Then the heat sink is turned to the positon lined up with a stator.
The thermal compound is then wiped away from the split in the Heat sink with acetone and a Q-Tip. I then apply 3 "dabs" of epoxy to each side of the split in the heat sink, where it contacts to motor. This provides a rigid fixation of the heat sink, Yet will allow it to "pop" free with tap of a hammer.

I won't get into the assy technique for assy of the rotor to the shaft, but I've never had one come loose, or heard about one that built ever coming loose.

You can just imagine the rpms of that rotor in my 200+mph Habu 32.

If the "Wire Mod"" is ordered. I solder the (10 or 12GA) wires in such a fashon that the come back over the fan, and heat shrink tubing is appield, so as to create a nice clean, one wire wide "Fairing". This technique provides the least amount of turbulence in the efflux area that the wires protrude though.
Usuallly only the KV is visible on the installed motor. sometimes, not. The motor number is written on the sticker, so you always know what motor is installed.

Different fans may require additional or different techniques, But I'm only covering the Jet fan here.
When I assemble and balance fans (any fan) , there's more to it than simply bolting in the motor and clocking the spinner. The Jetfans are quite smooth out of the box, and require no static balance as some others do. Some folks would rather not spend the time
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Last edited by efflux RC; Aug 31, 2014 at 01:14 AM. Reason: added text
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Old Aug 31, 2014, 01:10 AM
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United States, CA, Los Angeles
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That's why I order from you Gary. Your attention to detail, love for the hobby, and your high priority of customer service/satisfaction.
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Old Aug 31, 2014, 01:16 AM
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United States, CA, Santa Clarita
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That's why I order from you Gary. Your attention to detail, love for the hobby, and your high priority of customer service/satisfaction.
Tommy,

Thank you sir.

I heard from a customer last night, in Australia of all places, that your were gonna be at the field to day. We were there from 8AM till 4. I guess I missed ya.
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Old Aug 31, 2014, 01:18 AM
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United States, CA, Los Angeles
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I was going to go, but by the time I was free it was hot and later than I wanted to fly, so I figured I'd fly on Sunday or Monday since I have work off. I would have loved to fly with you guys though. When do you anticipate going to the basin again?
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Old Aug 31, 2014, 01:28 AM
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United States, CA, Santa Clarita
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I was going to go, but by the time I was free it was hot and later than I wanted to fly, so I figured I'd fly on Sunday or Monday since I have work off. I would have loved to fly with you guys though. When do you anticipate going to the basin again?
8am is usually to early for me for just a flying day. but it was forecast to be 100F today.
I turned my 12s bobcat back into it's stock config, so I could fly it.
We also flew my two Habus, and Chris' Habu.

Next week (Sunday only) is another......"Western States E-fly". We'll be there to have some fun and fly (not as vendors) should be cooler next week.
Hope you can make it.
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Old Aug 31, 2014, 03:30 AM
Aka: Tom Jenkins
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Palm Beach County, Fl.
Joined Aug 2008
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FYI, Most LHS have the E-flight small tube of thermal paste for a couple bucks..
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Old Aug 31, 2014, 06:23 AM
Extreme CNC Alloy EDF
Extreme_RC's Avatar
Australia
Joined Mar 2006
11,551 Posts
Quote:
Originally Posted by Eddie P View Post
If you want the "poop" on thermal grease it seems the computer guys are "hot" on the topic. A lot of them say "no-name Radio Shack" thermal grease (thermal compound) is just the same as high priced stuff but then again there is the standard, age old arguing that goes on surrounding name brands and generic.
Reminds me of a test I read when many years ago someone claimed artic silver was the bees knees... http://www.dansdata.com/goop.htm

You want a good laugh read through to the final 2 tests!

I will stick with regular silicon based thermal paste, the gaps I deal with are almost interference in my Extreme Alloy housings anyway, as I designed them around HET motors primarily.
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Old Aug 31, 2014, 01:46 PM
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United States, CT, Oxford
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Thanks guys
Ordered it all thru Gary

Now I just need to build a plane to try these bad boys out !
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Old Aug 31, 2014, 03:11 PM
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United States, CA, Los Angeles
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Originally Posted by efflux RC View Post
8am is usually to early for me for just a flying day. but it was forecast to be 100F today.
I turned my 12s bobcat back into it's stock config, so I could fly it.
We also flew my two Habus, and Chris' Habu.

Next week (Sunday only) is another......"Western States E-fly". We'll be there to have some fun and fly (not as vendors) should be cooler next week.
Hope you can make it.
That sounds awesome. I'd love to fly then.
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Old Sep 01, 2014, 12:47 PM
Should've, Would've, Could've
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United States, CA
Joined Dec 2010
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Originally Posted by T-CAT View Post
That's why I order from you Gary. Your attention to detail, love for the hobby, and your high priority of customer service/satisfaction.
+1 on that Gary is top notch and thank him for helping me get my Yak130 Jetfan setup and questions answered quickly.
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