Mini-Z, Kyosho Mini-Z Racer, MR-03, MR-02, MA-010, Forums, News, Pictures, Parts, and Shop - Mini-ZRacer.com
Forums, Mini-Z, MiniZ, Kyosho Mini-Z, Kyosho MiniZ, Kyosho Mini-Z Racer
Mini-Z Hop-Ups, Mini-Z Parts, MiniZ Hop-Ups, MiniZ Parts, Kyosho Mini-Z Hop-Ups, Kyosho Mini-Z Parts, Kyosho MiniZ Hop-Ups, Kyosho MiniZ Parts, Kyosho Mini-Z Racer Hop-Ups, Racer Kyosho Mini-Z Parts
Old 2004.10.17, 08:22 PM   #1
Phenochilus
Registered User
 
Join Date: Apr 2004
Location: Sydney, Australia
Posts: 89
Lightbulb Newbie Question to Motor Winding.

Hi all,

I'm having a go a re-winding some of my stock motor armatures and have a newbie question....

Do I need to sand away the enamel from the copper wire where it meets the metal tabs of the commutator ? Otherwise they won't receive any current !?

Sorry for this question, this will be the first time that I do this and can't find other resources on the web.


Thanks in advance.
Phenochilus is offline   Reply With Quote
Old 2004.10.18, 09:56 AM   #2
Kerk
Registered User
 
Join Date: Oct 2004
Posts: 43
Quote:
Originally Posted by Phenochilus
Hi all,

I'm having a go a re-winding some of my stock motor armatures and have a newbie question....

Do I need to sand away the enamel from the copper wire where it meets the metal tabs of the commutator ? Otherwise they won't receive any current !?

Sorry for this question, this will be the first time that I do this and can't find other resources on the web.


Thanks in advance.
Yes you do have to remove the enamel coating on the magnet wire for current to conduct. Make sure you do a good soldering job at the tabs to ensure the best conductivity.

Cheers!!
Kerk is offline   Reply With Quote
Old 2004.10.18, 12:18 PM   #3
Ken Mifune
2-Z or not 2-Z...
 
Ken Mifune's Avatar
 
Join Date: Nov 2001
Location: The Open Road
Posts: 2,678
I usually scrape the coating off with an X-acto. The stock arms have a plastic retaining clip holding the comm together so don't use too much heat too long. Good luck winding.

How many turns were you planning? If you plan on going with a low turn (less than 45) then also plan on stacking FETs or turbo.
__________________
-Kenichi's Album-

Last edited by Ken Mifune; 2004.10.18 at 12:28 PM.
Ken Mifune is offline   Reply With Quote
Old 2004.10.18, 01:21 PM   #4
Draconious
Moderator
 
Draconious's Avatar
 
Join Date: Nov 2001
Location: Goodrich MI
Posts: 6,164
Send a message via AIM to Draconious Send a message via Yahoo to Draconious
depending on the motor, the mag wire coating is sometimes designed tomelt when heated... so again not too much heat could melt the entire wire coating... but not too little heat, or it will be a bad solder joint... I usualy scrape it as well... use flux makes it easier
__________________
Draconious is offline   Reply With Quote
Old 2004.10.20, 08:08 PM   #5
Phenochilus
Registered User
 
Join Date: Apr 2004
Location: Sydney, Australia
Posts: 89
Just wanted to say Thanks for all the replies.

Stuffed up one of the commutator tabs that holds the wire in place - guess I bent it a bit too much with the xacto knife, and the tab just fell off. So I used some solder to hold it in place - did 40 turns of 0.3mm diameter wire, but when I hook it up to a double AAA battery pack, I have to hand rotate the armature to a certain point and then it'll start spinning.

So I'm guessing, one of the tabs isn't conducting too well. Only problem is that I don't know which one.
Phenochilus is offline   Reply With Quote
Old 2004.10.20, 08:54 PM   #6
Kerk
Registered User
 
Join Date: Oct 2004
Posts: 43
Quote:
Originally Posted by Phenochilus
Just wanted to say Thanks for all the replies.

Stuffed up one of the commutator tabs that holds the wire in place - guess I bent it a bit too much with the xacto knife, and the tab just fell off. So I used some solder to hold it in place - did 40 turns of 0.3mm diameter wire, but when I hook it up to a double AAA battery pack, I have to hand rotate the armature to a certain point and then it'll start spinning.

So I'm guessing, one of the tabs isn't conducting too well. Only problem is that I don't know which one.
Using a Multimeter, swith to continuity and do the check on the commutator. You will notice that there are 3 individual pieces. Using the probe, touch on 2 consecutive pieces at a time. eg. we call the three pieces A, B & C. Measure A & B, then B & C and finally C & A. The one showing a broken connection will be the culprit.

The other measurement (exactly the same measuring process), check for resistance. One with a higher value also shows bad connection. Or one which does not have any reading shows, probably, a broken connection.

Hope this might help you out.

Cheers!!
Kerk is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Newbie question ... LM bodys Dodge 2.4GHz ASF System (Auto Selected Frequency) 13 2008.06.16 12:49 PM
Newbie Question Altair Beginner Questions 12 2007.06.21 04:31 AM
MR-01 Question for Newbie Key500 Beginner Questions 6 2004.02.12 10:40 AM
F1 newbie question... Seppeku Mini-Z F1 MF-010, MF-015 13 2003.02.17 10:52 AM
newbie question... body prep in10se! Custom Bodies 5 2002.10.17 10:20 AM


All times are GMT -5. The time now is 02:40 PM.


Powered by vBulletin® Version 3.8.3
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2011 Mini-ZRacer.com
Mini Inferno Sale - Up to $85 Instant Savings!
Micro-T Hop-Ups
RC18R, M18, Micro RS4, Mini-LST, TamTech-Gear, Minizilla, RC18T, RC18B, RC18MT
shop.tinyrc.com Products

more»
Tiny RC Community News
[03/22/17] MZR was on vacation, didn't... : All kidding aside, the host experienced a bit of a server meltdown last week and efforts to restore the site to a new server took longer than anticipated. The current server is temporary until - more»
[11/25/15] Did You Hear? Our Black... : Hey Racers,
We're getting started a bit early with our Black Friday sale this year.  Generally we're not supporters of retailers opening early on Thanksgiving, but in our case, we're - more»
[06/30/15] shop.tinyrc.com: Have You... : Hey All! Just a quick reminder to everyone that we post all of our shop.tinyrc.com Newletters here on the MZR Forum. If for some reason you miss them in your email inbox, you can always see the - more»
Mini-Z, Mini-Z Racer, MR-02, MA-010
M18, M18T, RC18T, Mini-LST, Mini-T, Micro RS4, XRay, 1/18, 18th scale
XMODS, XMOD, Micro Flight, ZipZaps, ZipZaps SE, Bit Char-G, MicroSizers, TTTT, Plantraco Desktop Rover, SuperSlicks, Digi Q
Mini Inferno, Mini Inferno ST, half EIGHT, 1/16, 16th scale
Epoch, Indoor Racer, 1/43, 43rd scale
E-Savage, eSavage, eZilla, e-Zilla, HPI
Robots, Bots, Bipeds, Wheeled, Manoi, Roomba, NXT, Lego, Hacking
Crawling, Crawlers, Micro, RC, Losi Mini-Rock Crawler, Duratrax Cliff Climber
Kyosho Minium, Caliber 120, Minium Forums
Mini-Z Hop-Ups, Mini-Z Parts, Mini Inferno Hop-Ups, Mini Inferno Parts, M18 Hop-Ups, M18 Parts