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Old Sep 30, 2012, 06:17 AM
Extreme CNC Alloy EDF
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Australia
Joined Mar 2006
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The lander version of the changesun is HEAVY!! It will cause some issue with the Mirage balance for sure, 640 grams is 200g more than my equivalent alloy fan setup and heaps more than a regular wemo combo.

My Extreme 90mm Alloy fan with JETFAN90 9 blade rotor has the woosh sound, and the fan unit weighs only 168g complete with motor cover, add an HET 700-60-2085Kv motor and you have a 450 gram fan with Austrian precision rotor, high performance, and reasonable cost. 3.5kg thrust at 110A on 6s5000 packs.
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Old Sep 30, 2012, 07:23 AM
Just an Earth bound misfit - I
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Canada, ON, L'Orignal
Joined Nov 2010
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+1 Mark. That lander and the DPS unit are way too heavy for the amount of power they produce. Must be a big heavy inefficient motor in there. I've got your alloy wemo combo with an ARC 36-65-1 and its awesome. No whoosh, but id take one of your light efficient combos over those any day
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Old Sep 30, 2012, 09:12 AM
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out of stock's Avatar
United States, FL, Lehigh Acres
Joined Jan 2012
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how does one balance a changesun edf? can anyone somewhat explain this. i would like to learn. maybe theres a thread about this?

gentleman i found a thread no worries. but if you have any input ill be glad to hear through.

link:

http://www.google.com/url?q=http://w...5NFzcxSTLLrWjw

i went a** over ti* after 5 min reading through. very complicated if you asked me! whats a simple straight forward way of balancing edf's?
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Last edited by out of stock; Sep 30, 2012 at 01:02 PM.
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Old Sep 30, 2012, 06:08 PM
Life begins at transition
Australia, VIC, Sale
Joined May 2007
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That is. Four runs of the fan, and you're done. Takes <30min, no subjective "this feels better", no constant trial/error, and it can pick up differences much smaller than you can.

Yes, it's a bit more brain intensive, but less work overall.

It can also be expanded into true dynamic balancing (multiplane) if you want the smoothest of smooth fans.
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Old Sep 30, 2012, 06:09 PM
Extreme CNC Alloy EDF
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Australia
Joined Mar 2006
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There is no really simple way!
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Old Oct 01, 2012, 02:35 AM
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Australia, NSW, Bonny Hills
Joined Aug 2012
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I too have had a Lander set up, it now sits in a drawer in my workshop unused. Way too heavy, I have gone over to We Mo Tec and HET motors, can't be any more pleased with them. Might not have as much "whoosh" but still sounds pretty good.
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Old Oct 01, 2012, 05:03 AM
Extreme CNC Alloy EDF
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Australia
Joined Mar 2006
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I finally got time to set up and run the Jetfan rotor in my Alloy housings, started off with the HET 700-68-1400 on 8s. Performance is excellent, 3.5kg thrust at 2300 watts, 76 amps, really nice balance and a little more thrust/watt than the stock Jetfan unit running same motor. I think the 1500Kv motor will be a great balance for 8s, the 1680Kv pulls just over 100A, the 1500Kv should be around 85A. The 700-60-1485 is another very good choice, lightweight and puts out 3.3kg at 2200w on 8s with the Jetfan rotor.

The Alloy Jetfan sounds great, very woosh sounding, cannot wait to put one in my Mirage and try it out. Just undecided on whether I should stick with 6s or go to an 8s setup again...

LeeBee: My Alloy version of the Wemo is not much heavier than a stock wemo, 34 grams more for the 36mm motor version and that includes the alloy motor cover. The HET 650 series motors are excellent 36mm motors, very close to the 700 series in performance and a better choice than ARC plus they are not too heavy.
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Old Oct 01, 2012, 10:46 AM
DONT PANIC! :)
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United States, FL, Lehigh Acres
Joined Jan 2012
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im getting the jetfan 9blade from extremerc soon. mark, do these need to be balanced? if so do you guys do them? how much would shipping be to florida 33971?
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Old Oct 01, 2012, 01:48 PM
Obessive Compulsive
Visalia, California
Joined Mar 2010
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Nice alloy EDF here too: http://easytigermodels.com/index.php...q0ssl6kklhgdp2
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Old Oct 01, 2012, 05:29 PM
Extreme CNC Alloy EDF
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Australia
Joined Mar 2006
11,477 Posts
Quote:
Originally Posted by out of stock View Post
im getting the jetfan 9blade from extremerc soon. mark, do these need to be balanced? if so do you guys do them? how much would shipping be to florida 33971?
The rotors are already very well balanced, so far I have had to do minimal adjustment work when fitting them with the new collet adapters, and if you do need to adjust its simply remove and rotate a little one way then retest until you find the harmonic sweet spot.

I have found the spinners are all that require fine tuning, mostly you can rotate them until you find the harmonic sweet spot, very occasionally you will have to add a piece of tape or two on the inside of the spinner to get it perfect. I am being very critical when I fine tune as well, we are talking fractions of a gram in tape to finish it off

Are you after the Extreme Alloy version? getting a combo would eliminate the need to do any assembly and balancing, there are a few versions for 6s and 8s that I can do.
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Old Oct 01, 2012, 09:59 PM
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Australia, NSW, Bonny Hills
Joined Aug 2012
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Quote:
Originally Posted by Extreme_RC View Post
I finally got time to set up and run the Jetfan rotor in my Alloy housings, started off with the HET 700-68-1400 on 8s. Performance is excellent, 3.5kg thrust at 2300 watts, 76 amps, really nice balance and a little more thrust/watt than the stock Jetfan unit running same motor. I think the 1500Kv motor will be a great balance for 8s, the 1680Kv pulls just over 100A, the 1500Kv should be around 85A. The 700-60-1485 is another very good choice, lightweight and puts out 3.3kg at 2200w on 8s with the Jetfan rotor.

The Alloy Jetfan sounds great, very woosh sounding, cannot wait to put one in my Mirage and try it out. Just undecided on whether I should stick with 6s or go to an 8s setup again...

LeeBee: My Alloy version of the Wemo is not much heavier than a stock wemo, 34 grams more for the 36mm motor version and that includes the alloy motor cover. The HET 650 series motors are excellent 36mm motors, very close to the 700 series in performance and a better choice than ARC plus they are not too heavy.
Hey Mark, I bought my HET 600- 37- 2 from you a little while ago, it runs in my WeMo 90mm with no problems on 6 cells. As you say, you just have to find the sweet spot with rotor and spinner, then maybe a little piece of tape and your good to go. Itís not blistering speed, but itís fine for me, plus only 55amps. My Mirage balanced perfect with 6x 4000mha battery as far forward as it would go. I just have to get more stick time on it.
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Old Oct 02, 2012, 03:29 AM
DONT PANIC! :)
out of stock's Avatar
United States, FL, Lehigh Acres
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going with the alloy 6s combo. i just want something plug n play. gathering the funds baby wooo! thanks btw.
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Old Oct 03, 2012, 07:00 PM
Extreme CNC Alloy EDF
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Australia
Joined Mar 2006
11,477 Posts
There are a few 6s versions I can do, it all depends on the packs you intend to use with it, the ESC, and what sort of power you want.

Regular setup is with the 700-68-2100, its a 2200-2400w setup, 100-110A and 3.5kg thrust. 5000mah 6s needed.

The 700-60-2085Kv is a lighter setup, around 50g lighter, might be a better choice for the Mirage depending on your batteries etc. Also around 110A tops and 3.4kg thrust. 5000mah 6s needed.

If you want lower power to run smaller packs or longer flight time then the 700-60-1865 is a good choice, 90A for 3.2kg thrust, with 5000mah packs you get more flight time and not much difference in top speed.

It hard for me to list every combo, but I think the 1865Kv one is worth listing separately so will add that to the website today.
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Old Oct 06, 2012, 11:05 AM
scunna
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United Kingdom, England, South Shields
Joined May 2007
575 Posts
90 mm sized plane with 70 mm changesun fan

Fly Fly mirage 70 mm changesun 10 blade fan Eflite bl-32 motor 6s 4500 45c nanotech (2 min 43 sec)
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Old Oct 07, 2012, 06:03 PM
DONT PANIC! :)
out of stock's Avatar
United States, FL, Lehigh Acres
Joined Jan 2012
1,900 Posts
The 700-60-2085Kv is definitely what ill be getting into. however 1 question. i have a 4400mah 6s battery. is that ok?

also which retracts here would you recommend.

http://www.x-flight.com.hk/index.php...w&pp=6&lang=en

or

http://www.x-flight.com.hk/index.php...&more=&lang=en
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