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Old Oct 13, 2012, 11:15 PM
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United States, TX, Grand Prairie
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Originally Posted by capt soap View Post
Now try it on 5s, maybe a 65c pack ?
Around 5.8lbs of thrust 100 amps but the thrust goes down quick eating that many amps out of 65c packs.

I think you might have heard that setup in the A-4...really sick
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Old Oct 18, 2012, 11:59 AM
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Canada, BC, Surrey
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Hey guys, what do you figure would be the best speed controller settings for this motor on 5s in a 10 bladed fan? The esc (ZTW 110A) I am using is supposed to have automatic settings detection but I don't know if I should manually set the timing and pwm?
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Old Oct 18, 2012, 01:03 PM
AMA 983978
United States, FL, Jacksonville
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Hey Whalley,
The advice I receive was Low for timing and 16 deg for pwm. That said, I had an overheat incident on my 100a Ice lite and in working with the tech support at castle creations, he suggested 12 deg. Once I get the esc back from them I'll probably go with the 12.
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Old Oct 18, 2012, 08:16 PM
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Originally Posted by MikePS View Post
Hey Whalley,
The advice I receive was Low for timing and 16 deg for pwm. That said, I had an overheat incident on my 100a Ice lite and in working with the tech support at castle creations, he suggested 12 deg. Once I get the esc back from them I'll probably go with the 12.
Ok thanks, this seems to be common for long inrunners. I will have to try this out.
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Old Oct 19, 2012, 07:53 AM
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United States, NC, Wilmington
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My velocity is the 2900 also..I like it much better than the HET 1w40..Same thrust with less amps in the eflite fan..6+lbs of thrust on 6s 3300 65c..
Excellent little powerplant!
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Old Oct 22, 2012, 08:48 PM
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Originally Posted by MikePS View Post
Hey Whalley,
The advice I receive was Low for timing and 16 deg for pwm. That said, I had an overheat incident on my 100a Ice lite and in working with the tech support at castle creations, he suggested 12 deg. Once I get the esc back from them I'll probably go with the 12.
how did you make out with this in the end? I just had another one of these motors burn up on me recently and it took my CC Ice lite with it! I had it set up on 6s with a wemo fan, cc settings are motor>motor start power-Low, Motor timing>High (I swear I had set it to low prior) and the PWM Rate-16khz.
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Old Oct 23, 2012, 08:17 AM
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So far I've had two flights with this motor. both on 6S, cc ice 100 lite, low timing, PWM at 16. The first a complete success. On the second, I experienced an "excessive temprature detected" event on the esc, which shut it down. Although I was able to dead stick the plane in without damage, the esc would no longer allow for high enough power to achieve flight. It's now at castle being diagnosed, hopefully to be replaced with the ice 100 (NOT-lite). I had the esc mounted in the intake, but the fact that it didn't have a heat sink may have caused the overheating shut dow.
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Old Oct 23, 2012, 09:05 AM
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Originally Posted by Hover or die View Post
My velocity is the 2900 also..I like it much better than the HET 1w40..Same thrust with less amps in the eflite fan..6+lbs of thrust on 6s 3300 65c..
Excellent little powerplant!
Are you using the e flight shroud and rotor?
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Old Oct 23, 2012, 09:35 AM
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Originally Posted by MikePS View Post
So far I've had two flights with this motor. both on 6S, cc ice 100 lite, low timing, PWM at 16. The first a complete success. On the second, I experienced an "excessive temprature detected" event on the esc, which shut it down. Although I was able to dead stick the plane in without damage, the esc would no longer allow for high enough power to achieve flight. It's now at castle being diagnosed, hopefully to be replaced with the ice 100 (NOT-lite). I had the esc mounted in the intake, but the fact that it didn't have a heat sink may have caused the overheating shut dow.
I am going to replace my burnt out 2950kv motor and esc and use them on a safer 5s voltage.

Does anyone have numbers for a 2950kv in a WeMo Pro on 5s? What kind of load can I expect?
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Old Oct 23, 2012, 10:32 AM
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Originally Posted by WhalleyB0Y View Post
I am going to replace my burnt out 2950kv motor and esc and use them on a safer 5s voltage.

Does anyone have numbers for a 2950kv in a WeMo Pro on 5s? What kind of load can I expect?
4.5lbs of thrust/80-ish amps...

Can tick up the timing for a little more thrust...

How was the other 2950 burnt?

Regards
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Old Oct 23, 2012, 11:11 AM
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Originally Posted by erh7771 View Post
4.5lbs of thrust/80-ish amps...

Can tick up the timing for a little more thrust...

How was the other 2950 burnt?

Regards
I have been having nothing but trouble with my twin 70mm composite Raptor. I am trying to use 2950kv's on WeMo fans powered by CC Ice Lites. I originally was using free open air cooling with the esc's mounted in a central location in relation to the motors and lipo packs. This proved to be troublesome with constant overheating shut downs on the controllers. Working with Steve @ CC we decided to move them into the exhaust ducts behind the motors and extend the battery leads with two capacitor packs each side. I also added heatsinks to the motors with thermal paste. This new setup has now provided me with two burnt out motors and two burnt out esc's on seperate occasions.

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This graph here shows one of the better bench tests. Disregard the rpms because I forgot to change the pole count in the software.

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This graph shows the esc at the moment it burnt up.

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At the time it happened I was trying to discharge my packs by running them in the plane. I had literally just came in from doing taxiing exercises and wanted to store the packs. On the field everything was fine but upon powering it up at home one of the two controllers shut down with current overload detection. At that moment the motor was making clicking sounds and small thin plume of smoke trailed out of the rear. Before I could remove the power, the esc emitted a flash and it too released a plume of smoke.
Now I got a defective pack that only has shows as 5s, another motor and esc burnt up and a WeMo fan that has a deep gouge rubbed inside the shroud.

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IMO I don't think the WeMo fan can handle the rpms and/ or the heat generated (even with heatsinks) I also think at full load the motors are very sensitive to any contact between the rotor and shroud. My bench tests didn't reveal any overheating issues, everything stayed below 120* but I think my problem came once the rotor made contact with the shroud?
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Old Oct 23, 2012, 11:15 AM
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I know that WeMo says slight contact by the fan of the shroud is accpetable....for what it's worth, brand new out of the packing, my fan has never rubbed even slightly against the shroud
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Old Oct 23, 2012, 12:07 PM
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Originally Posted by WhalleyB0Y View Post
... My bench tests didn't reveal any overheating issues, everything stayed below 120* but I think my problem came once the rotor made contact with the shroud?
Your thrust tubes are a little tight for my taste but that shouldn't overamp any thing...

I have a video of me putting 3000 watts through this motor upthread on CS rotor with SUPPO controller, the windings could care less..they were not discolored on bit

The shroud on the WEMO isn't going to melt just from running at around 1700 - 1800 watts...maybe around 3000.

Do you still have the motors? I need the magnets out of them and willing to pay for time shipping them.

Accoms razor comes to mind...

Try another set of ESCs... Hobbywings should work...there's someone selling them for 40usd a piece in the power section...get 80 amp ones, their FETS are spec'd for 100..

Regards
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Old Oct 23, 2012, 12:24 PM
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[QUOTE=erh7771;

Do you still have the motors? I need the magnets out of them and willing to pay for time shipping them.

[/QUOTE]

I would love to give them to you but I have been sending them back for replacement.
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Old Oct 23, 2012, 02:01 PM
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Nevermind, I got it to work again with a different esc and shroud.
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