AXI is TOAST!

[Fit]

Yup you read it right, my AXI is toast....

The other day I crashed on a wet field. The motor was full of mud and dirt. I diassembled the motor and removed all the caked mud in the motor and sprayed it out with motor spray. There were still tiny bits of dirt that were difficult to remove but shouldn't pose a problem.

Re-asembled the motor and it flew fine for 4 battery packs. Yesterday night I flew it and the ESC suddenly shuts down. Checked the ESC and battery they were fine not hot. Never though about checking the motor since its BRUSHLESS and not supposed to WEAR out. Armed the heli again and hovered. Again after a few seconds the ESC shuts down.

The smell of something burnt filled the air. Traced it down to the AXI. It was ****in hot. Could barely touch it. I'm still not sure what went wrong with the motor. Too upset to go and disassemble the motor to check. But I think some debris or bits of dried mud has lodged itself between the stator and the can and probably rubbed the insulation off the wires or stator and caused a short within the motor. Shorted motor and amp draw shoots up and the P10 sensing over-current, shuts down.

Damn it! So those running AXI's do check that your motor is clear of debris. If there's any diassemble it and clean it out. Going back to Join Bon's Brushed Brigade

[spidey]

hi fit

sorry to hear tat...same here for me, was rather upset tat i crashed my hornet the other day when i knew i could land it safely...jitters' bug

why not take a break and join the foamies...i am re-building my pico-stik as we speak... ...blame mike, bon, uncle joe for tat...

btw...wat happen to the video of you and mike's synchronised piper cub flight...tot it was really graceful

[MicroHeli-Nut]

hehehehehehheheheh

Now i've a good reason to buy myself another motor! Yeh!!!!

[Fit]

We're in the same boat, crashed hornets and moving on to fly our planes

How's the 3D profile plane going? Have you built it yet?
Don't worry I have the video uploaded to my com but haven't got around to editing it. Will do so soon.

Any Bishan Funfly tommorrow? I'm starting skewl on monday so tomorrow if possible squeeze in some stick time with my cub

[MicroHeli-Nut]

Nah, i just failed the IPPT. Failed to get the money.... once i get the money then see what i can buy.... If I'm lucky probably out of the blue i get a old and get $400 and can buy another crazy heli!~

[HZM]

I think outrunner had its prob too .... maybe just to much opening to take any dirt. Try sending it back? maybe they are like CC. ..... they might just send you a new one

Ray, u goto try harder man.... I got $200 bucks last yr for my IPPT, I don know if I can create record by going for gold this year

Mike

[D.Yeo]

shit man fit that's damn pain but send it back though !

even if they'll fix it and charge you it still wont cost as mush as getting a new one?

probably just need to change the coils or some minor stuff.

meanwhile you can just use a brushed yeah?

[MicroHeli-Nut]

Thanks for the boost. I'll try harder. It's really a slap in the cheek. I've been training and dieting. and last minute i freek.

[Super-Hornet]

Hi all

Sorry to pour cold water on u... and sorry to hear fit burn out the motor.

That is why I prefer inrunner is because:
1 - No openning hold is required for cooling. So no particle can go in.
2 - Coil is at the can/casing so heat transfer are much better.
3 - More free moving shaft than inrunner and therefore On-Way gear may not necessary to achieve AutoRotation.. (Maybe only)

Super-Hornet

[BonJour Brat]

Yikes!

And i just ordered the axi from mack!

[Super-Hornet]

Hi BonJour Brat

Actually AXI is good but u need special care for it. Himaxx motor or any inrunner motor is more robust and carefree. I'm being using it since DFly and that same more now using in Hornet II.

Super-Hornet

[YZY]

when a motor gets hot the magnest loose magnetism and you loose power and efficiency

and i do find himax motors really get very hot!

[Super-Hornet]

Yeah... magnetism will lost when heated BUT that is only when u heat it in let say 150 to 200 Degree Celcius or in direct fire to get red hot.

Himaxx motor is hot to touch after running some time but it is not as hot as boiling water. I think it is around maybe 70 to 80 Degree celcius.

Super-Hornet

[Han]

AXI

AXIs are known to throw magnets, one or more could have been disloged in your crash and gotten jammed inside. I know someone has glued them back and runs perfectly now.
YZY should be familiar about magnets throwing in AXIs.

[Tele]

Originally posted by Super-Hornet
Yeah... magnetism will lost when heated BUT that is only when u heat it in let say 150 to 200 Degree Celcius or in direct fire to get red hot.

Himaxx motor is hot to touch after running some time but it is not as hot as boiling water. I think it is around maybe 70 to 80 Degree celcius.

Super-Hornet

I would have to disagree with you ..I have had the himax up to 165 'c and thats just after about 10 min of hovering 12 tooth! ..alos thats the outside temp not the internal temp!

for me the AXI beats the himax in all area's endurance, power and performance. Ok you have to make sure that its clean but my Axi has never gotten above 45'c even after 18 min of heavy circuits!!

its AXI all the way for me .......

If you are very concerned about the dirt, a small paper/ cheese cloth covering for the motor can keep out anything thats not ment to go in there ...ca the cheese cloth over the bottom vents ..if your want ? Just a sugestion.

cheers doug