Hot motor and hot ESC ... What can be the problem ?

Started by docnayeem, February 28, 2014, 06:33:27 PM

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VC

Docnayeem, congrats.

Its a pity that I wasn't following this thread closely. There was so much to be learnt / unlearnt thanks to some of the experts here. I'm still a beginner and will probably remain one for the rest of my life. What I fear is that some keen newbie will start reading this thread and once he stumbles upon authoritative drivel being pumped in by an 'expert', will take it as Gospel truth and log out of here. How long before failed flights and frustrations 'burn' his enthusiasm for the hobby?

May I request all the self professed 'experts' (not deemed by your number of posts but self declared in your own profile against 'RC Skills') to be very careful in your 'teachings'?

I am still a beginner (after being associated with this hobby since 1975) and am trying to learn here. What, I'm still trying to figure out, is an ESE?
Growing old is mandatory, growing up is optional!

docnayeem

Thanks VC sir ....
And its so very true there is always so much to learn ....

And its humble people like you that keep us inspiring to learn and unlearn
Thanks again ... Happy to have people like you Anwar  sir and everyone else around making it a great learning experience ....

rcpilotacro

Well Kewal Kalsaria is missing with prolly with tongue in his cheek looking for the prodigal cat.

1. Ventilation is important, here is the image from my previous thread, you can see how these transparent plastic cups traps the air and blows it onto the motor to cool it


2. While it is theoratically true that motor draws required Amps depending on the load, if your ESC is not upto it (That is if it is 20 Amps ESC and the current required is 30 Amps) ESC will burn

HOWEVER what i have practically observed when a motor draws 19 amps WOT when i use 25 Amps ESC, same motor draws 23-24 Amps when i use 40 Amp ESC, gives me more RPM, power and punch, particularly true for higher KV motors like the ones we use on parkjets.

3. I agree completely with Lance, investment on Wattmeter is a necessity (Even to Kewal, i would suggest that), Like they say in Hindi "Darpan Jhoot Na Bhole" Mirror doesn't lie. Wattmeter meter and RPM meter tells you exactly what  your is motor upto

Gusty's Hangar and Introduction.

A Good pilot will practice until he gets it right,
A Great pilot will practice until he can't get it wrong.

kewal kalsaria

Respected  rc pilotacro plz mind your language, as I did not object for ventilation in my any post and decision was started to share knowledge to make internal conflicts or to use vulgar language. Please next time take care of it.

rcpilotacro

#54
Kewal

(a) Like it was pointed out to you please dont use SMS language and what your post, post it legibly, calling ESC as ESE are few examples which were pointed out to you.

(b) Tongue in Cheek means this http://en.wikipedia.org/wiki/Tongue-in-cheek

(c) Cat caught your tongue means this http://www.phrases.org.uk/meanings/cat-got-your-tongue.html

Your Tongue in Cheek reamrks which did expose your ignorance are as enumerated below :-

Quote from: kewal kalsaria on March 01, 2014, 02:31:42 PM
sory my frnd u r wrong. Do u know y kV, resistance ohms and  watts of motor is mentioned in there specification? Bro it is not useless information. With that info we can make good electronic combination so there is no need to see on chart  ??? for combination. Bro for ur kind info I strated motor winding experiment wen I was 8 year old.

Red ones are not accepted around here, you need to take care of that, if you knew and yet you dont follow ? expect to be ticked off, mildly initially, later...?

Why is there no need to see the chart ? by just reading KV watt etc how will you know which size prop to use ?

Does starting a winding shop when you were 8 yr old make you an expert in Electricity and Magnetism ? If so What is Lenzs Law ? how does it matter ? with the correct prop and incorrect prop will the motor overheat, if so why

Refer my PM on my stand on the subject of vulgarity, edit your post
Gusty's Hangar and Introduction.

A Good pilot will practice until he gets it right,
A Great pilot will practice until he can't get it wrong.

asinghatiya

 :salute: wonderful outcome; motor need little more fresh air!

Lighter side of the discussion!

years back Chacha Chaudhary was a big name in hindi comics :bow:.... in one of his stories a man got a new TV and he was not able to start it; all the experts tried everything in the TV but not able to start it and finally chaha went and just plug the 'unplugged' TV and it started :banghead:.

It also remind me the story of Alchemist! what you want is exactly there where you are sittting.... but its always good to roam around the world and realize this fact.

Wonderful discussion! lot of knowledge sharing!  :thumbsup:.... and good that outcome was as simple as 'little more fresh air'

Keep going :thumbsup:
:-)

kewal kalsaria

Respected rcpilot sir as u you are Senior I respect u so I don't want to create any personal despute between us so I strongly apologise from my side.

ayub

That is a great attitude  :hatsoff:
This is a good forum, so make it more useful.

rcpilotacro

Quote from: kewal kalsaria on March 04, 2014, 10:16:57 PM
Respected rcpilot sir as u you are Senior I respect u so I don't want to create any personal despute between us so I strongly apologise from my side.
Kewal

so do i, like i said in my reply to your PM, english banters are just banters and need to be taken that way, if you notice, pulling leg here and there keeps the humour alive, vulgarity is not to be and never used. I was only bringing out the relation of how important it is to select a correct prop for an electric motor depending on the number of cells you use for an electrical setup.

Once again, if by my Errors or Omissions or for that matter Commissions, if in any way you felt hurt, unconditional and heartfelt apologies. :bow:
Gusty's Hangar and Introduction.

A Good pilot will practice until he gets it right,
A Great pilot will practice until he can't get it wrong.

asinghatiya

Quote from: rcpilotacro on March 05, 2014, 02:12:55 AM

Once again, if by my Errors or Omissions or for that matter Commissions, if in any way you felt hurt, unconditional and heartfelt apologies. :bow:

:bow: With your kind permission can I use this line for my any of my unintentional "future misbehaves" with anyone to seek an apology!!! (Actually a permission to do CCP from here  ;) )

:-)

rcpilotacro

:) ;) Iyer sir, I , Mrs Iyer and Iyer sir's father, Doc Vikas Harveer and I were discussing last light over dinner that, owing to some gentlemen here (me inclusive i guess) this forum is also turning out to be a good place to hone ones writing, thinking and probably speaking skills in English, (Humour inclusive)

PS
Go right ahead
Gusty's Hangar and Introduction.

A Good pilot will practice until he gets it right,
A Great pilot will practice until he can't get it wrong.

docnayeem