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Zoom › Mini ac 1215/20 brushless application question
04-29-2004 05:19 PM  13 years agoPost 1
benz19

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BIRMINGHAM,ENGLAND

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Hi all you new Zoom owners,is the Mini ac 1215/20 going to be any good for the zoom,if so any idea on the gearing??

Regards benz

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04-29-2004 05:45 PM  13 years agoPost 2
Mike_Y

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South Wales, UK

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Nope I'm afraid not. I'm running a MiniAC1215/16 at the moment and its red hot after 10mins. The MiniAC1215/20 is a lower KV motor than the 16 so I guess its going to be worse than the 16. I'm changing mine as soon as my new motor arrives. I'm running an 8 tooth pinion on the MiniAC1215/16.

Mike_Y

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04-29-2004 08:32 PM  13 years agoPost 3
benz19

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Chers,how are you finding the Zoom?

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04-29-2004 11:19 PM  13 years agoPost 4
Mike_Y

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Excellent

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06-29-2004 01:31 PM  13 years agoPost 5
Dexter

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Mike,

Might that not have something to do with the 1215/16 being rated for only 8 cells (9.6v) as opposed to the 11.1 we're running?

I hope so, as I ordered a 1215/20 this morning! I'm just trying to find a budget solution, and I already have a phoenix10 kicking around so the low current draw of these motors is appealing. At this level I can reasonably safely run it on my Apogee 830mah lipo's too, so hopefully I'll end up with a pretty light model, even if it is not as well powered as some others.

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06-29-2004 01:54 PM  13 years agoPost 6
Corrado-Italy

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Italy

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The mini ac 1215/20 is rated at 3000 rpm/volt, just like the hacker b20-18L (3086 rpm/volt).
I think it will be a good performer on a 10T pinion, maybe not as powerful as an hacker but worth a try.

regards

Corrado

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06-29-2004 02:04 PM  13 years agoPost 7
Dexter

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Hey HighFreq... good to see you again!

The 1215/20 will arrive with me tomorrow, so I'll get it bolted in and let you all know...

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06-29-2004 04:58 PM  13 years agoPost 8
wildstallionuk

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ENGLAND, FOLKESTONE, KENT

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I thought that someone had already reported great success with the MiniAC 12/15/20 on the board, and said it keeped an acceptable temperature . I have one and love it on my Pinnalce, I sure it would work ok but I have no need to try. Im gonna try an Astro 10 though soon, just for curiosity.

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06-29-2004 05:02 PM  13 years agoPost 9
Dexter

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I did a search, but couldn't find anything of relevance... just this thread!

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06-29-2004 05:30 PM  13 years agoPost 10
Mike_Y

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South Wales, UK

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Yes Wildstallion is right someone is using a Mini AC1215/20 successfully, try a search on RCgroups its on one of these forums.

Mike_Y

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06-29-2004 05:48 PM  13 years agoPost 11
Dexter

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Cheers Mike, I found quite a bit!

HighFreq, I quote you from RCGroups:
mini ac 1215/20+4S tanics 850=........

--------------------------------------------------------------------------------

Pure 3D power. Just tried the new setup (lightened a little bit) with tanics 850 instead of etec 700 in 4S configuration with mini ac1215/20 and all i can say is 10 minutes of pure unbelievable power!!!!!!!!!!
It's not just vertical performance it is just insane all around!!!
I know that was on a Hornet2, but would the same still apply to a Zoom? Will the BEC on a P10 stand the volts and still deliver? What pinion would you want? I guess 9T?

This could be the lightweight/high voltage solution I'm after!

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06-29-2004 06:21 PM  13 years agoPost 12
Mike_Y

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South Wales, UK

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Try this it might help.

Mike_Y

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06-29-2004 08:53 PM  13 years agoPost 13
Dexter

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Hmmmm...

4s 830mah Lipo's
9T pinion
CC Phoenix 10

Over 3000 on the head... Can that be right? Obviously I would have to run it at 90% throttle to give it 2700 on the head, but it still seems mighty high!

Any electronics type fellas out there shed any light on the viability of this? Anyone know how to configure KC's spreadsheet to show a motor he doesn't list?

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06-29-2004 08:58 PM  13 years agoPost 14
Corrado-Italy

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Italy

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On that configuration i think you might run into problems. I was flying that conf on the Hornet 2 (than came the axi :-)). Please don't forget the Zoom is almost double the weight, well not double but a good amount heavier.

regards

Corrado

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06-29-2004 09:01 PM  13 years agoPost 15
wildstallionuk

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ENGLAND, FOLKESTONE, KENT

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Why "4s 830mah Lipo's" are they much lighter? Surely you would reduce the runtime loads.

Why not TP 1320mah, I use these and am really happy. Im sure the motor would be great with 10 tooth, and give a good performance to duration ratio.

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06-29-2004 09:03 PM  13 years agoPost 16
wildstallionuk

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Oh I see is that maybe a high volage setup?

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06-29-2004 09:35 PM  13 years agoPost 17
Dexter

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That is what I was thinking, but HighFreq makes me think differently now!

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06-29-2004 09:45 PM  13 years agoPost 18
wildstallionuk

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ENGLAND, FOLKESTONE, KENT

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I think the new Ultrafly series motors would be better for a Highvoltage setup. I think Walt is going to test them soon.

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07-01-2004 08:50 PM  13 years agoPost 19
Dexter

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The good news: It works!

The bad news: It seems only a little better then the standard motor!

I put in the 1215/20 with a CC10 and a protech full-length 10tooth pinion.

I'm happy enough with the duration (20 mins ish), put it needs more headspeed. The Himax 4200 is on it's way.

Dex

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07-01-2004 09:00 PM  13 years agoPost 20
wildstallionuk

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ENGLAND, FOLKESTONE, KENT

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20 minutes wow, do you think its performance is comparable to a Hacker18L ?

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