RC India
Welcome Guest, please login or register.
 
Pages: 1 ... 3 4 [5]   Go Down
0 Members and 1 Guest are viewing this topic. Topic Tools Topic Tools 
Read
« Reply #100 on: February 19, 2012, 10:17:51 PM »
roopeshkrishna
Boat Lover
Forum Hero

*****

Reputation Power: 41 
roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...
Offline Offline

City: calicut
State: Kerala
RC Skills: Beginner
Posts: 3602
Join Date: Oct, 2010

HYDRO PLANER.....



Sundaram Sir..it was a great sharing of knowledge, and actually, by mind i was sitting in front of you, on a bench, with desk, as in my academic years..as you mentioned, from my modeling life i never thrown out any motors as lost, and even now working on new 3, as brushed, and two as ECMs..as i am more intertested in ship and boat modeling, i usually rewinds all motors with more windings with thin guage wires..and yes, was inspiring and immensly valuable..a million thanks for the effort to teach us the step by step procedures..a million salute.. Salute Salute Salute Hats Off
Logged

Phoenix.........
 

Read
« Reply #101 on: February 20, 2012, 06:00:36 PM »
rahulkhedkar
Plane Lover
Active Member
**

Reputation Power: 1 
rahulkhedkar has no influence.
Offline Offline

City: pune
State: Maharashtra
RC Skills: Beginner
Posts: 10
Join Date: Aug, 2011



Hey plz can you send me the information to how to rewind bldc motor ........thanks.....
Logged
 

Read
« Reply #102 on: February 20, 2012, 07:37:24 PM »
manojswizera
Plane Lover
Forum Hero

*****

Reputation Power: 18 
manojswizera has no influence.
Offline Offline

City: AURANGABAD
State: Maharashtra
RC Skills: Beginner
Posts: 1336
Join Date: Oct, 2011



Rahul plz read this entire post from the first page, every thing about rewinding is explained here within.  Smiley
Logged

Russ-40 Trainer, Mr.moss, Pushler, Skysurfer, Mugi , F-22, Red swan, Xtra-300, redfury, flying mantaray.
 

Read
« Reply #103 on: February 20, 2012, 08:21:44 PM »
roopeshkrishna
Boat Lover
Forum Hero

*****

Reputation Power: 41 
roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...
Offline Offline

City: calicut
State: Kerala
RC Skills: Beginner
Posts: 3602
Join Date: Oct, 2010

HYDRO PLANER.....



its too easy to rework on any motors..may be a brushed or brush less..i got lots of motors from various sources, and now rewinding all for my needs..you can see here is a heavy motor rated at 12 Volts and 15 Amps..but later i reworked 3 of them to 12 volts 1.5 Amps..and about 4000 RPM..cool..

we can buy, or collect needed SWG wires from any electronic spare dealers..make sure it is all good HD copper..

MCM-2.jpg
Re: Can this BLDC motor be repaired?
* MCM-2.jpg (61.71 KB, 800x600 - viewed 906 times.)
This post has 1 more images(s)/attachment(s). Please login or register to view them.
Logged

Phoenix.........
 

Read
« Reply #104 on: February 20, 2012, 08:27:23 PM »
roopeshkrishna
Boat Lover
Forum Hero

*****

Reputation Power: 41 
roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...
Offline Offline

City: calicut
State: Kerala
RC Skills: Beginner
Posts: 3602
Join Date: Oct, 2010

HYDRO PLANER.....



this motor was in 1000 RPM/Volt, and rated at 9 Amps, at 11.1 Volts. i lost it's three poles, in a crash..and rewinded it for my specs for ship modeling. so, my need is less RPM, with comparatively great torque. you can see here how easy to rewind a motor, to our needs..

ECM-1.jpg
Re: Can this BLDC motor be repaired?
* ECM-1.jpg (55.45 KB, 800x600 - viewed 730 times.)
This post has 1 more images(s)/attachment(s). Please login or register to view them.
Logged

Phoenix.........
 

Read
« Reply #105 on: February 20, 2012, 08:33:01 PM »
roopeshkrishna
Boat Lover
Forum Hero

*****

Reputation Power: 41 
roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...
Offline Offline

City: calicut
State: Kerala
RC Skills: Beginner
Posts: 3602
Join Date: Oct, 2010

HYDRO PLANER.....



you can see the rewindings..here as all according to my needs..i took about 20 minutes to wind it all tightly..

after insulating installed the rotor..

ECM-3.jpg
Re: Can this BLDC motor be repaired?
* ECM-3.jpg (80.22 KB, 800x600 - viewed 777 times.)
This post has 1 more images(s)/attachment(s). Please login or register to view them.
Logged

Phoenix.........
 

Read
« Reply #106 on: February 20, 2012, 08:41:47 PM »
roopeshkrishna
Boat Lover
Forum Hero

*****

Reputation Power: 41 
roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...
Offline Offline

City: calicut
State: Kerala
RC Skills: Beginner
Posts: 3602
Join Date: Oct, 2010

HYDRO PLANER.....



you can see, previously, this motor no load current was 1.8 Amps..but after reworks, it takes only a mere 520 mAmps..at 12 volts..

and even at stall load with fingers it is only about 800 to 900 mAmps..so,? hours of running time for boats and ships..but with all needed power ratios..ample os woooms...so, please do not throw away your burned motors..may be MCM or ECMs..if you are going to discare..please give it to me.. Giggle

i once again saying a million thanks to sundaram sir, for the greatly detailed drwings of various configurations, of ECMs..even a child can follow..Sir..a million salute for your encouragements.. Salute

have you all some nice reworked motors..try it..all easy..

ECM-5.jpg
Re: Can this BLDC motor be repaired?
* ECM-5.jpg (83.03 KB, 800x600 - viewed 629 times.)
This post has 1 more images(s)/attachment(s). Please login or register to view them.
Logged

Phoenix.........
 

Read
« Reply #107 on: May 30, 2012, 06:45:17 PM »
roopeshkrishna
Boat Lover
Forum Hero

*****

Reputation Power: 41 
roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...
Offline Offline

City: calicut
State: Kerala
RC Skills: Beginner
Posts: 3602
Join Date: Oct, 2010

HYDRO PLANER.....



i got this micro motor from one of the respected Member of RCI, as damaged.. the winding was damaged and was far beyond recovery.. and at beginning i was not much interested because of its size..  but after rework, it showed its mettle.. and so happy that to make a simply fly with a span of 24 inch..
cleaning the web was some hard work as the company was using a tight insulation coating on it.. but with some patience cleanned well.. and ready for rework..

MM-1.jpg
Re: Can this BLDC motor be repaired?
* MM-1.jpg (72.42 KB, 800x600 - viewed 718 times.)
This post has 1 more images(s)/attachment(s). Please login or register to view them.
Logged

Phoenix.........
 

Read
« Reply #108 on: May 30, 2012, 06:48:02 PM »
roopeshkrishna
Boat Lover
Forum Hero

*****

Reputation Power: 41 
roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...
Offline Offline

City: calicut
State: Kerala
RC Skills: Beginner
Posts: 3602
Join Date: Oct, 2010

HYDRO PLANER.....



after full cleaning started winding.. used 26 SWG instead of 24 original.. more RPM..and yes in to STAR.. more torque..

MM-3.jpg
Re: Can this BLDC motor be repaired?
* MM-3.jpg (67.45 KB, 800x600 - viewed 535 times.)
This post has 1 more images(s)/attachment(s). Please login or register to view them.
Logged

Phoenix.........
 

Read
« Reply #109 on: May 30, 2012, 06:52:22 PM »
roopeshkrishna
Boat Lover
Forum Hero

*****

Reputation Power: 41 
roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...
Offline Offline

City: calicut
State: Kerala
RC Skills: Beginner
Posts: 3602
Join Date: Oct, 2010

HYDRO PLANER.....



you can see how simple is to rework.. its now ready for the test..

MM-5.jpg
Re: Can this BLDC motor be repaired?
* MM-5.jpg (73.68 KB, 800x600 - viewed 602 times.)
This post has 1 more images(s)/attachment(s). Please login or register to view them.
Logged

Phoenix.........
 

Read
« Reply #110 on: May 30, 2012, 07:03:31 PM »
roopeshkrishna
Boat Lover
Forum Hero

*****

Reputation Power: 41 
roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...roopeshkrishna might someday be someone...
Offline Offline

City: calicut
State: Kerala
RC Skills: Beginner
Posts: 3602
Join Date: Oct, 2010

HYDRO PLANER.....



once completed.. oh my GOD.. i amazed with its immense power.. at 7.4 volts she hauled a 5X4 prop with ease for long time test without any fail or over heating.. !!  so time to make a good plane of its class..  here once again.. reworking a BLDC motor is quite easy.. try it.. rework it.. and RCyit..  Thumbs Up

MM-7.jpg
Re: Can this BLDC motor be repaired?
* MM-7.jpg (80.44 KB, 800x600 - viewed 573 times.)
This post has 1 more images(s)/attachment(s). Please login or register to view them.
Logged

Phoenix.........
 

Read
« Reply #111 on: September 26, 2015, 09:58:49 AM »
sundaram
FAN OF FPV FLYING, AERIAL PHOTOGRAPHY & MICRO RC
Plane Lover
Forum Hero

*****

Reputation Power: 38 
sundaram is working their way up.sundaram is working their way up.sundaram is working their way up.
Offline Offline

City: Gandhinagar
State: Gujarat
RC Skills: Advanced
Posts: 3407
Join Date: Nov, 2009



Interesting video on how to mechanically control speed of brushless without the use of ESC

www.facebook.com/EngenhariaEletricaEletronica/videos/1031341783576854
Logged

 

Pages: 1 ... 3 4 [5]   Go Up
Jump to:  

Related Topics
Subject Started by Replies Views Last post
1800kv bldc motor required
For Sale
dhrupad 4 3207 Last post July 26, 2013, 09:41:03 PM
by Rahulvyas
BLDC motor 110,000 rpm
Wanted
MohitJindal 10 5879 Last post March 20, 2015, 10:47:47 PM
by tantragna
Refurbished bldc motor.
RC General Topics
sumit joshi 0 1374 Last post December 06, 2015, 03:45:12 PM
by sumit joshi
BLDC motor issue
Multirotors
r3ap3r 4 2456 Last post December 16, 2015, 08:28:38 PM
by r3ap3r
850 Watt BLDC MOTOR E-Rickshaw Motor, Controller, Harness & Convertor for Sale
For Sale
shadowsfromthemist 6 5075 Last post July 05, 2016, 09:48:41 AM
by shadowsfromthemist