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Old Jun 18, 2005, 04:57 PM
AKA Don
bz1mcr's Avatar
United States, MI, Houghton Lake
Joined Dec 2002
7,563 Posts
Vented cans and curved magnets for CDROM based motors.

All STRONG setscrew cans can now be purchased with vented cans.
Stock GB cans are also available with STRONG Vent holes. The vent holes add cooling, reduce weight by about 0.6 g and provide a nice high tech look.
Add STRONG curved magnets and you can have the highest efficiency and coolest looking CDROM around. Put a new look and new performance on your old CDROM motors. Exclusively available at STRONG RC MOTORS Check the "Cans" and "Can Parts" pages.
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Old Jun 18, 2005, 06:35 PM
Good Better Best quest.
olmod's Avatar
Australia, VIC, Cranbourne East
Joined Apr 2004
10,512 Posts
That

Has to be one of the best inovations ive seen,the holes are well placed without weakening the can front plate too much ,and placed close to the outer rim where they will be the most effective for max'cooling ,the 20mm should make up into one of the best indoor 3d motors for knuffels and sx2 & 3s' around, this coupled with the other advantages you have bought to kit building it has to rank top of the list, I WILL BE ORDERING.
cheers.
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Old Jun 19, 2005, 01:14 AM
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Australia, VIC, Cranbourne East
Joined Apr 2004
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Been meaning to ask

Don,on your special kits what does the magnetic gap measure between the stator end and magnet? please.
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Old Jun 19, 2005, 09:53 AM
AKA Don
bz1mcr's Avatar
United States, MI, Houghton Lake
Joined Dec 2002
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Quote:
Originally Posted by olmod
Don,on your special kits what does the magnetic gap measure between the stator end and magnet? please.
STRONG curved magnets for the 20 and 22.7 mm stator motors have a nominal airgap of 0.10 mm
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Old Jun 20, 2005, 11:04 AM
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Australia, VIC, Cranbourne East
Joined Apr 2004
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Thats

Very good clearance no wonder you are getting such good cogging.
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Old Jun 27, 2005, 02:52 PM
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Joined Jan 2005
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Well Don you've done it again!
I ordered out a couple of vented cans and the curved magets to see what difference it would make over a standard GBv. My normal wind for the GBv is 20T 26awg and with N50 magnets (12 pole NSNSNS) makes 8.4 oz. of thrust (10600 rpm @5.0 amps) with the GWS 7x3.5hd prop, and 12.9 oz. thrust (8760 rpm @ 6.5 amps) with the GWS 8x4hd prop. This was with a TP 730 3s battery.

I wound the motor with the "Strong Curved Magnets" 18T 26awg to try to compensate for the lower kv that others have reported and the results were outstanding. 10.7 oz. thrust (11910 rpm @5.2 amps) with the 7x3.5hd, and 14.9 oz. of thrust (9390 rpm @ 7.8 amps) with the 8x4hd prop. I used the same 3s lipo for both sets of tests.

The motor only weighs 26 grams and puts out almost 15 oz. of thrust at reasonable amp draws. I'm impressed.

Rick
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Old Jun 27, 2005, 03:13 PM
AKA Don
bz1mcr's Avatar
United States, MI, Houghton Lake
Joined Dec 2002
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Quote:
Originally Posted by Rick Hodges
Well Don you've done it again!
I ordered out a couple of vented cans and the curved magets to see what difference it would make over a standard GBv. My normal wind for the GBv is 20T 26awg and with N50 magnets (12 pole NSNSNS) makes 8.4 oz. of thrust (10600 rpm @5.0 amps) with the GWS 7x3.5hd prop, and 12.9 oz. thrust (8760 rpm @ 6.5 amps) with the GWS 8x4hd prop. This was with a TP 730 3s battery.

I wound the motor with the "Strong Curved Magnets" 18T 26awg to try to compensate for the lower kv that others have reported and the results were outstanding. 10.7 oz. thrust (11910 rpm @5.2 amps) with the 7x3.5hd, and 14.9 oz. of thrust (9390 rpm @ 7.8 amps) with the 8x4hd prop. I used the same 3s lipo for both sets of tests.

The motor only weighs 26 grams and puts out almost 15 oz. of thrust at reasonable amp draws. I'm impressed.

Rick
Rick, congratulations and thanks for posting your results. Can you post a picture for us? Show off that nice vented can.
Don
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Old Jun 27, 2005, 05:52 PM
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Picture of Motor with "Strong" Vented Can and Curved Magnets:[IMG]ventMTR.jpg[/IMG]
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