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Electronics => Electronics => Topic started by: Joker94 on August 25, 2009, 06:40:43 PM

Title: Stepper Motor
Post by: Joker94 on August 25, 2009, 06:40:43 PM

I have this stepper motor that  got out of a computer disc tray but i am nit sure what voltage or amperage i need to run the motor, And i don't want to burn it out, has any one done this before or have any tips.

Title: Re: Stepper Motor
Post by: Joker94 on August 30, 2009, 11:02:21 PM

is there a particular way i should go about testing the motor.like trying different combinations of leads and trying different voltage and amps, and work up from zero.

Any one have any ideas

1 bonus point for the best answer.

Title: Re: Stepper Motor
Post by: SmAsH on August 31, 2009, 12:21:20 AM

use a multimeter on its resistance setting and measure around...
there are forum posts on what to do...

Title: Re: Stepper Motor
Post by: Joker94 on August 31, 2009, 01:29:36 AM

I hooked up my multimeter and then hooked up a battery and it will pulse forwd about 1 mm and when i do the other way it will go backward about 1mm. How do i get contiuous rotation?

Quote from: SmAsH on August 31, 2009, 12:21:20 AM

there are forum posts on what to do...

i could not find any existing posts on stepper motors when i typed it into the serch box.

Title: Re: Stepper Motor
Post by: SmAsH on August 31, 2009, 01:35:49 AM

well, steppers are what their name suggests, steppers :P they rotate via steps.
to get it to keep spinning you must turn on one step after another.
you must find gnd, connect it to battery - and find out which wire goes to which coil this is easy.
then you must turn them on in the right order. ie 1 then 2 then 3 then 4 etc... this will make it keep stepping thus rotating.

Title: Re: Stepper Motor
Post by: Joker94 on August 31, 2009, 01:38:17 AM

cool, i'll give it a try now, thanks smash.

Title: Re: Stepper Motor
Post by: Joker94 on August 31, 2009, 01:55:52 AM

na, still will not work. I think i will come back to it later, and i'll try think of something else.

Title: Re: Stepper Motor
Post by: SmAsH on August 31, 2009, 02:01:35 AM

try to find gnd, then it should work if you get the right order.

Title: Re: Stepper Motor
Post by: Razor Concepts on August 31, 2009, 02:08:12 AM

Stepper motors don't have grounds, they are just coils. Use the multimeter to find out which wires go to each coil. This pic below should help:
http://www.picaxe.orconhosting.net.nz/stepdemo.jpg (http://www.picaxe.orconhosting.net.nz/stepdemo.jpg)