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Outrunner motors?

Old 07-07-2003, 05:21 PM
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teleplayr
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Default Outrunner motors?

Hello all. I've been doing some reading on the Torquemax outrunner motors. I'm planning on building an electric bomber, and I think these motors would be just the ticket. I'd like to swing a 12" 3-blade prop.

I was wondering what kind of following they have here in the US. I don't have access to a lathe, but would like to try building one from a kit. What sort of options do I have for getting started with these things?

Thanks,

-Joe
Old 07-07-2003, 11:20 PM
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e-bird
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Default Outrunner motors?

They have a site
http://groups.yahoo.com/group/lrk-torquemax/
CU
Old 07-08-2003, 11:53 AM
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teleplayr
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Default Outrunner motors?

Yes, I found that, but there's not much info on the motor's availability here in the US, and I was hoping to hear from some people who have experience with them. It's also a lot of information for someone who is new to electric motors to understand.

Thanks,

-Joe
Old 07-08-2003, 03:14 PM
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e-bird
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Default Outrunner motors?

There is a guy here Sacramento,ca Craig Allen

http://www.high-torque.com/netware_bundle/phpBB2/

[email protected]
I have built about 40 now but a lathe and mill helps.
CU
Old 07-09-2003, 10:48 AM
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Greg Covey
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Default Outrunner motors?

You may want to consider using the AXI outrunner (or rotating can ) motors at Hobby Lobby. They are well documented and readily available in the US.

Here is one of my applications using them called a Wipa Firecat.

The larger AXI motors can power a 10lb cruiser like the 1928 Monocoupe from Bohemia Models.

Good luck!
Old 07-09-2003, 01:11 PM
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teleplayr
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Default Outrunner motors?

Thanks for that, I didn't know there were mass produced versions of these motors available.

-Joe
Old 07-09-2003, 03:42 PM
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Matt Kirsch
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Default Outrunner motors?

If you're looking for simplicity and efficiency, the AXi outrunners are the way to go.

An AXi 2820/10 on 10 cells is a good drop-in replacement for a .25 2-stroke.
My calculations indicate that an AXi 4140/14 on 16 cells is a good drop-in replacement for a .46 2-stroke. We'll see very shortly, as I'm finishing up a conversion.

Check out http://www.modelmotors.cz for reasonably accurate test numbers on the various AXi outrunners. Last time I checked, Hobby Lobby's numbers were... very optomistic.
Old 07-18-2003, 02:32 AM
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joelrindy
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Default Outrunner motors?

Greg,
Read your Firecat review and was surprised to see that there are li-poly cells that can handle discharge current over 30 amps. Could you provide more info on these cells, where you get them, do they need a special charger like other lithium cells, etc.. Thanks, Joel
Old 07-18-2003, 11:49 AM
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Default Outrunner motors?

If you gang enough Lithium Polymer cells together in parallel, you can get them to handle any Amp discharge you want. That's what Greg is doing with his Firecat.

IIRC, the Firecat's using Kokam high-discharge cells from http://www.fmadirect.com. Like any other Lithium cells, they need a special charger.
Old 07-20-2003, 02:35 AM
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e-bird
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Default Outrunner motors?

I have 2 of the Nippy 400's are are very nicely built and i have a
pretty good machine shop. But they now have about 30 hours on
them with no trouble at all with castles C ctrls Hobby Lobby
and many people have them but there are others I have built more than 44 outrunners NOW no trouble I found good magnets.
CU
Old 07-20-2003, 04:04 PM
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Ron v. Sommeren
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Default Re: Outrunner motors?

Originally posted by teleplayr
... I was wondering what kind of following they have here in the US ...
Several US members of www.yahoogroups.com/group/lrk-torquemax have built www.torcman.de motors. Maybe it's easier to order them from the UK: www.maxrivers.com Great info to be found there, in English

Originally posted by teleplayr
... What sort of options do I have for getting started with these things? ...
www.yahoogroups.com/group/lrk-torquemax
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Old 08-25-2003, 02:36 PM
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shinburee
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Default Outrunner motors?

For AXI motors you can try www.aircraft-world.com while you are there, take a look at the lovvvely variable pitch props. Look good, and work well on my war birds, just set them up with a amp/watt meter. I have a set comming with reverse rotation for a Westland wirlwind.

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