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Old Oct 17, 2012, 12:55 PM
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Wynn1427's Avatar
United States, CA
Joined Jul 2005
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Source for supplies

Was wondering how and who everyone is getting supplies from at the moment? Also how easy is it to get small orders for hobby applications?

- 15 thru 18 AWG enameled magnet wire
- Nomex paper
- Glass braided sleeving

Thanks
Wynn
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Last edited by Wynn1427; Oct 18, 2012 at 09:17 PM. Reason: my terrible spelling.
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Old Oct 18, 2012, 08:44 AM
Scratch builder
USA, PA, Telford
Joined Apr 2004
1,339 Posts
http://www.mcmaster.com/# nomex glass sleeving

http://www.oemwire.com/Small_Quantity.htm wire

I've never used either of these, good luck.

#15 wire is not on the list at go brushless but they might be able to get it.
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Old Oct 18, 2012, 09:21 AM
Jack
USA, ME, Ellsworth
Joined May 2008
16,323 Posts
This supplier has a wide ranges of sizes in three grades of U.S. made Essex-Superior wire. I prefer the 200C Amber wire for it's tougher insulation coating (fewer nicks in handling and winding) but the green works well too:

http://www.techfixx.com/

Other suppliers are:

Micro-Dan - http://www.gobrushless.com/shop/inde...ref=MDANmotors

Strong Motors - http://www.strongrcmotors.com/

Radio Shack magnet wire is useless for anything except test winds...

The wire that is described as "solderable" or claiming that "insulation does not need to be removed for soldering" are not describing it's use in a home shop environment with a single point hand held soldering iron. They are describing it's use in industrial production environments using specialized tooling and chemicals to do the stripping and soldering.

In general, nothing works as well as scraping the insulation off and removing all traces of the insulation coatings with abrasive cloth. So it adds a few minutes to the job but is not unbearable.

Jack
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Old Oct 18, 2012, 11:16 AM
Lesson Learned = $$ Saved
Wynn1427's Avatar
United States, CA
Joined Jul 2005
743 Posts
Thanks for all the info. I have some specs to shoot for before I go down again and talk with local motor shop about getting some material. Got a killer quote from local shop after he had looked at two motors I had opened up so I assume he was quoting the amber wire.

Seems that there are a lot less people winding for helicopter applications and the reason why a lot of the wire sales are 18-20 AWG and up on most of the hobby related sites.

Thanks
Wynn
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Old Oct 18, 2012, 05:56 PM
Jack
USA, ME, Ellsworth
Joined May 2008
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"..Seems that there are a lot less people winding for helicopter applications and the reason why a lot of the wire sales are 18-20 AWG and up on most of the hobby related sites..."

What motors are you intending to rewind? And are they wound with single strands of larger wire now?

Most of us doing 35-40mm and smaller stators find that it is very hard to wind with wire larger than 21 or 20 AWG. It is simply almost impossible to get the wire around the arms and keep it in contact with the arms because of the larger size of the wire. In the end, it actually starts causing you to "lose turns" as compared to doing the same wind with a slightly smaller wire or multiple strands in parallel.

If you want to see something interesting, look at the motor specs on the Scorpion pages. They list the strand counts and wire sizes used and they use a wide range of wire sizes and strand counts.

http://www.scorpionsystem.com/catalog/motors/

I think the only motor I have noticed in the Scorpion line that is a single strand wind is their smallest motor, the S-1804.

Jack
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Old Oct 18, 2012, 09:00 PM
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Wynn1427's Avatar
United States, CA
Joined Jul 2005
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Going to start in the 550 class (600mx 6s and 12s motor) and see where it goes from there. There are a few examples here - http://www.tuning.powerditto.de/ of single strand rewinds for helicopter motors which seems to be the desired wind method by a lot of people. Another good source of info is a sub-forum on hf (http://www.helifreak.com/forumdisplay.php?f=291)

Wynn
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Old Oct 19, 2012, 02:59 AM
Jack
USA, ME, Ellsworth
Joined May 2008
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OK, those guy are undoubtedly the big wire masters over there.

I use a couple of the powerditto and powercroco pages regularly (the winding scheme table and winding scheme calculator) and those have both been down for a couple of weeks now. It's good to see that some of their info is still on line as it implies that the rest of it will be back eventually.

Jack
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Old Oct 19, 2012, 01:36 PM
Lesson Learned = $$ Saved
Wynn1427's Avatar
United States, CA
Joined Jul 2005
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I am surpirsed that its still down as well, so not sure what is going on at the moment. Hope that the the winding scheme table and winding scheme calculator come back up as well since I have some more studying to do in that aspect. I have a few tools to mod and then start the process of the two motors I already have.

Wynn
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Old Oct 19, 2012, 02:42 PM
Jack
USA, ME, Ellsworth
Joined May 2008
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That's a great forum, the motor rewinding one at Helifreak. I can see that is going to be a fun one to read. I've been curious about a lot of the tools and techniques used on the ditto/croco pages and see a lot of it is explained there at Helifreak.

I haven't done any bigger motor or wires but really enjoy studying the details.

Thanks for the tip!

Jack
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