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Ace Hobby . Esprit Model . Thunder Power RC

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e-Align T-REX 450-500-600 > T-REX SE MOTOR BLOWOUT!!!!!
 
 
Francois
Heliman
Location: Montreal,Canada

iS THAT EVER HAPPEN TO SOMEONE

My T-rex is 3 weeks old, about 2.5 hrs of flight and great fun, my setup is almost perfect after few adjustemnet. It happen maby 3 time that my motor kind of stop during hoovering, for maby 2 sec but start back right away.

Now tonight prepared my 3 lipos, put the first one and after 4-5 min. I heard a sort of POW! and litle flash (about 6 foot in air) and a cloud of smoke ( no wind tonight 0 nada) my T-rex drop and that's it!.

Now if I plug my batterie it make all the beep as normal but engine just turn slowly and stop.

What'st wrong, I check all my gear and everything look fine.

Any Idea?
04-11-2006 Over year old.
 
 
Gary Jenkins
Elite Veteran
Location: Wilmington, DE

Sounds like on of the windings is open.
04-11-2006 Over year old.
 
 
drdot
Elite Veteran
Location: So. California, Orange County.

fwiw..

What other electronics are on board?

John.
04-11-2006 Over year old.
 
 
Francois
Heliman
Location: Montreal,Canada

Standard T-rex SE, motor is 430L 3550KV , ESC BL35G. JR receiver.
04-11-2006 Over year old.
 
 
MikeInMobile
Key Veteran
Location: Mobile, Alabama

Just toss your 430 into the trash with all of the others that have burnt up ot fallen apart ...... Gte a decent motor and stop trying to make an Align POS work

Align motors use an inferiour winding that melts whenever the motor warms up. I have taken NUMEROUS Align motors apart after failure and have seen the EXACT same failure ..... shorted windings due to the breakdown of the insulating material used on the windings!
04-11-2006 Over year old.
 
 
Francois
Heliman
Location: Montreal,Canada

To Mike:

That's is exactly what I think.
04-11-2006 Over year old.
 
 
MikeInMobile
Key Veteran
Location: Mobile, Alabama

I have taken 15 of these motors apart and have seen the EXACT same failure in ALL of the motors.

Talk to me once you have done a little research !
04-11-2006 Over year old.
 
 
ShellDude
Elite Veteran
Location: East Coventry, PA

We need a 'please check your ego at the door' policy.

check please!
04-11-2006 Over year old.
 
 
MikeInMobile
Key Veteran
Location: Mobile, Alabama

Iy's funny .... the ONLY motors that I managed to fry are ALIGN (and no, I didn't fry all of those motors, they were given to me for analysis). Now, I don't use Align motor compoanents (Motors, ESC) because I know how they are constructed!

For example, Align ESCs are made using 1/2 oz copper on the circiut boards. ALL of the other manufacturers use 1oz copper because it allows the ESC to handle a lot more current without a failure (and YES, I AM an electronics engineer!). The motors are wound with a thinner insulation layer than most of the other motors on the market. This is NOT an engineering decision, but a decision to improve profit. Whenever the motor heats up, this insulation is the ONLY thing that prevents the motor from shorting out!

I current use JGF motors, but I have tries almost all of the motors, and the only motors that I have managed to fry are ALL made by Align.

YES, I HAVE DONE THE RESEARCH !
04-11-2006 Over year old.
 
 
ShellDude
Elite Veteran
Location: East Coventry, PA

My big contribution to this thread is that I think you need to take a chill pill.

I also recall a thread a few months back where someone went through 4 of these motors.

For someone who devotes so much time to this forum, it'd sure be nice if you could treat your peers with a bit more respect.
04-11-2006 Over year old.
 
 
Francois
Heliman
Location: Montreal,Canada

Thank' to reply

I us RX JR R610L
Gyro 401+S9650
3x S3103
Hyperion Poly 2100
Dean connectors
whip antena

Everything mount as I would say 80% of what I see in RR.
04-11-2006 Over year old.
 
 
MicroDOC
Veteran
Location: Goleta, CA

The only problems I've had is with the gold capped motors. I had an end cap pop off. I've never had one burn up. I've drilled and tapped them with 0-80 screws and solved the problem. The new silver capped motors have the end caps screwed on and haven't been a problem.

Experience is something you don't get until just after you need it!
04-11-2006 Over year old.
HOMEPAGE  
 
 
ShellDude
Elite Veteran
Location: East Coventry, PA

Since I don't add anything of value to threads, I guess I'll leave out the fact that my 400L separated. After it separated I re-attached it with loctite to have the shaft burn out.

Align motors are definitely top of the line. Keep diggin that hole there bud!
04-11-2006 Over year old.
 
 
ShellDude
Elite Veteran
Location: East Coventry, PA

lmao... kinda like Driving Ms. Daisy
04-11-2006 Over year old.
 
 
ShellDude
Elite Veteran
Location: East Coventry, PA

You assume that I'd actually take the time to sit through one of your self absorbant videos.
04-11-2006 Over year old.
 
 
Francois
Heliman
Location: Montreal,Canada

Since I am new in the Rex "why is...???"

Could it be possible that I just had a defective motor, if they have made I don't no , 100.000 + of motor, maby 250.000, it would be normal to have 1% of defective. You no 1000 or 2500 means unsatisfied customers that complain in this forum!.

I have to agree with finless on something, from my experience with my Sceadu we have to check, re-check rere-check our settings, they sometime having some bad effects on other components.
04-11-2006 Over year old.
 
 
rdlohr
Key Veteran
Location: Pittsfield. MA USA

Now I am just waiting for the chanting:

Jerry, Jerry, Jerry, Jerry, Jerry, Jerry, Jerry, Jerry,

Then the rolling out of the three-legged cat!

Cheers gentlemen!!!

Rick


-#-> Still Flyin, crashin and lovin it!
04-11-2006 Over year old.
HOMEPAGE  
 
 
lsnover
Senior Heliman
Location: Bath, PA

Yeah, and mines bigger then yours, so there.

Let the software engineer float in here. Both sides of the equation can be contributing factors. If the hardware is not fully up to snuff or designed on the margins, then other contributing factors can cause a domino effect. I have no experience with Align motors, I went with the JGF motor.

However, I've been around long enough not to jump to conclusions with cause and effect. As Bob points out, other factors can be the primary cause. In order to make an intelligent statement on the facts, you have to begin to isolate all the variables and test combinations independtly. This can be a total PITA, but you can not make a fair judgment any other way.

None the less, if the Align motors are designed with very little room for safety, I would lean another way. If they have significant advantages despite the safety margins, I would certainly want to understand the factors that can push them over the edge. I think that's what Bob's saying.

On my airplanes (which I've been doing for years), I've had good luck with a variety of brushless motors. The only one I ever toasted was a Big Jeti Inrunner. It got so hot the magnets debonded. Now, I'm not sure which came first the heat, or the debonding. Jeti replaced the motor under warranty after examining the motor and esc and confirming our setup.

I'd be interested to hear how the Optic radio interacts with these motors.

Regards,
Lee
04-11-2006 Over year old.
 
 
ShellDude
Elite Veteran
Location: East Coventry, PA

My perspective was that of a Software Architect. Its not every day that we can see our stuff translate to real world applications lol
04-11-2006 Over year old.
 
 
MikeInMobile
Key Veteran
Location: Mobile, Alabama

My first degree was EET which DOES cover motor technology. My second degree was a EE, and my third was CS.

The basic problem is that the Align components are designed Just good enough to get the job done. While this would be great in a perfect world, unfortunately, we don't live in a perfect world.

It is common practice for us to push the limits of what our equipment was designed to do ..... EVERYBODY does it in this hobby! Most of the manufacturers design in a little extra so that the parts do not fail so long as we do not push it "beyond-the-limit" too far.

Just because the motor is still running does not mean that it has not shorted ..... this is a common misconception. If the motor "all-of-a-sudden" develops a lot less power, it probably has a partially shorted winding in it. I see this a lot!

I guess it time for all of us to just play nice
04-11-2006 Over year old.
 
 
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Real Raptors . Mikado Modellhubschrauber . GrandRC

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e-Align T-REX 450-500-600 > T-REX SE MOTOR BLOWOUT!!!!!
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