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Electric Stunt => Gettin all AMP'ed up! => Topic started by: John Rist on September 13, 2011, 07:50:17 AM
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What is the best (cheapest) source for an AXI motor. I am looking to buy a AXI 2826/10. :P
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I don't know about the best, but Hobby Lobby seems to be AXI motor central in the USA.
http://www.hobby-lobby.com/axi_gold_series_277_ctg.htm
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John
I found they all charge about the same but I have used Hobby-Lobby a couple of times. Call to see if they are in stock.
After reading some of Christ’s posts, I have also been using the Scorpion SII 3026 -710 from Go Brushless - they have a SII 3026 -890 that would be an equivalent to the AXI 2826-10 (4 cell). Very good performance from the Scorpion motor and great service from GoBrushless.com. Parts are readily available - if you have read recent threads you might be interested in that too.
Norm
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Are their different grades of AXI motors? I am seeing pictures of AXI that look different. See attached photos.
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John
Just looked in the AXI catalog looks like the Gold Line is all there is. I did notice a more "plain" looking motor (like your picture) in the accessory section. This could be an older picture of a motor from a couple of years ago.
Norm
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I too used the Scorpion 3026-890 in my SV 22 and have had 110 flights with no issues. I put over 260 flights on my SV 11 on Scorpions also. The Power 25 from E-Flite is also another very good and basically equivalent option.
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John
Just looked in the AXI catalog looks like the Gold Line is all there is. I did notice a more "plain" looking motor (like your picture) in the accessory section. This could be an older picture of a motor from a couple of years ago.
Norm
John, Norm,
Along those lines, some years back, Hobby Lobby offered both AXI Gold and AXI Silver versions of some motors. I bought two or three of the Silver versions of some motors that I was using for Old Timer R/C. I couldn't tell any difference, but I admit that I wasn't pushing any of them as hard as the motors are pushed today. (It could have been as much as 10 years back, don't rightly remember.) I haven't seen any of the lesser grade Silvers offered by HL in several years.
Jim Howell
Huntsville, AL
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My first AXI 2826/10 looked like the bottom pic and the next two looked like the top picture. To me, they are the same motor.
The top picture is just the newest graphics.
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The latest Scorpion motors. THe link to their website.
http://www.scorpionsystem.com/catalog/motors/ (http://www.scorpionsystem.com/catalog/motors/)
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I am now looking at the OS 3825-750. Supposedly it can swing a 12x8E at around 11K on a 4S LiPo. It is the same size as my Turnigy C3548 -900. My Turnigy is swinging an 11x5.5 at around 10 to 11K (per a tack reading). It runs cool. I am guessing that the OS will pull harder. It will probably also pull more current. However I am only using 55% of my 3000 ma pack as it is. The down side is that the OS is a rear mount only. I was thinking of flipping to a front mount but this is not possible wit the OS. However the Turnigy I am replacing is a rear mount motor so the swap will be easy. I am looking for a better motor for my LA-5 for two reasons - More power and the ability to handle a spinner. Just looking at the OS 3825 I believe it will do this very nicely. Now for the point of this post - The cost at my LHS and or at Tower is $80. This price is $20 to $40 less then comparable AXI etc motors.
The other interesting feature is that It is listed as a 3 ball bearing motor. A good thing I would suspect. Looking at my Turnigy motor I can see the two ball bearings - one on each end of the shaft. Where is the 3rd baring in a 3 bearing motor? Is it simply a double ball bearing on the prop end of the OS?
Anyway at $80 bucks at my LHS this seems to be a no brainier. n~
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The other interesting feature is that It is listed as a 3 ball bearing motor. A good thing I would suspect. Looking at my Turnigy motor I can see the two ball bearings - one on each end of the shaft. Where is the 3rd baring in a 3 bearing motor? Is it simply a double ball bearing on the prop end of the OS?
It's a bearing around the other end of the bell, to prevent the magnets from rubbing the armature when everything is getting deflected from gyroscopic forces. Here's a picture of a Plettenburg with the 3rd bearing:
http://www.plettenberg-motoren.com/UK/Motoren/schnitt_orbit.htm
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It's a bearing around the other end of the bell, to prevent the magnets from rubbing the armature when everything is getting deflected from gyroscopic forces. Here's a picture of a Plettenburg with the 3rd bearing:
http://www.plettenberg-motoren.com/UK/Motoren/schnitt_orbit.htm
Ok that's impressive! If OS really does have 3 bearings in the OS 3825-750 it's a heck of a deal at $80. The problem when you try and run a spinner on a Turnigy motor is the bell starts to vibrate as the motor comes up to speed. Their is a fair amount of flexing in a Turnigy because of it's small shaft and two small bearings. I will post results when and if get the OS.