Society of Robots - Robot Forum

Mechanics and Construction => Mechanics and Construction => Topic started by: voyager2 on July 15, 2010, 12:52:49 AM

Title: Short Tutorial On Dismantling DC Motors
Post by: voyager2 on July 15, 2010, 12:52:49 AM

So I was getting board today and had a little motor lying around, so I dismantled(say: destroyed) it and wrote a short tutorial of what to do...

TOOLs:
small 1mm screwdriver
motor
time
needle nose pliers(optional, but recommended)

METHOD:
1.Find your victim(motor), mine was a cheap one from a $20 RC car
The victim:
(http://i865.photobucket.com/albums/ab214/voyager64/Motor1.jpg)
2.Open the motor by bending the two metal tabs(located around the edge of the metal cylinder)away from the plastic "cap" thing with pins sticking out, I used a 1mm flat-head screwdriver.
3.Lever the plastic cap off.
4.Inside there should be a little shaft with electro-magnets(mine had 3).
Step 4 picture:
(http://i865.photobucket.com/albums/ab214/voyager64/MotorCCW.jpg)
5.Pull this out with your fingers or the needle nose pliers.
Step 5 picture:
(http://i865.photobucket.com/albums/ab214/voyager64/MotorBCCW.jpg)
6.The only remaining part should be the permanent magnets these are glued in >:(
7.You have successfully dismantled a DC motor.

You may wish to savage the coil wire, magnets ,etc.
  (http://i865.photobucket.com/albums/ab214/voyager64/Motor001.jpg)
Please +1 my "helpful" tab if this helped you!

Title: Re: Short Tutorial On Dismantling DC Motors
Post by: voyager2 on July 15, 2010, 03:52:01 AM

Oh and just to amaze you even more:
I put the motor back together(temporarily), and it worked fine, actually better!
I am amazing! 8)

Title: Re: Short Tutorial On Dismantling DC Motors
Post by: amando96 on July 15, 2010, 10:01:08 AM

Try getting better photos, with natural light  ;)

Title: Re: Short Tutorial On Dismantling DC Motors
Post by: voyager2 on July 15, 2010, 07:43:01 PM

Yeah,
Mum's camera is amazing in good conditions...
Mine (the last picture)is horrible in all conditions :(

Title: Re: Short Tutorial On Dismantling DC Motors
Post by: voyager2 on July 15, 2010, 11:07:27 PM

UPDATE...
I figured out how to remover the permanent magnet,
use a vice/clamp or pliers to squeeze the motors metal body.
The magnets pop out, along with two metal U things that hold them in place.

Title: Re: Short Tutorial On Dismantling DC Motors
Post by: Soeren on July 18, 2010, 08:52:47 AM

Hi,

Quote from: voyager2 on July 15, 2010, 12:52:49 AM

So I was getting board today

Carefull, boards get nailed  ;D

Try using a tripod or similar to avoid blurry pics (Pic #2 from the top is shaken) - shorter shutter times helps too.
Perhaps you're too close for the range of the cam or the setting is out of focus - does the cam has a manual distance setting?
Which cam(s) are you using?
Add lots of light, digicams like that.

This is a couple of handheld shots in less than good lightning:
(http://That.Homepage.dk/Img/Example.jpg)
(http://That.Homepage.dk/Img/Example2.jpg)

Title: Re: Short Tutorial On Dismantling DC Motors
Post by: voyager2 on July 19, 2010, 04:23:41 AM

I'll take better pictures when I have time, what SoR needs is a tutorial on taking pictures...

Title: Re: Short Tutorial On Dismantling DC Motors
Post by: vinito on July 19, 2010, 10:54:20 AM

Would a picture-taking tutorial which includes somehow using an Axon be in the running for an award? ;D

Title: Re: Short Tutorial On Dismantling DC Motors
Post by: paulstreats on July 19, 2010, 04:10:46 PM

David Cook at robotroom.com has written a piece on closeup / macro zoom photography.

http://www.robotroom.com/Macro-Photography.html (http://www.robotroom.com/Macro-Photography.html)