Re: controler boards

["Steve Carlisle" <quatsein-at-island.net>]

Phil, it is normal for steppers to run hot enough to burn you. That
said, the link section at www.linuxcnc.org has a link to Compumotors
knowledge base. That is a great place to start.

Steve

----------
> From: Phil Smith <phil-at-conwaycorp.net>
> To: Multiple recipients of list <emc-at-nist.gov>
> Subject: controler boards
> Date: Friday, April 27, 2001 7:17 PM
> 
> 
> Well I built the controler board I posted about earlier, in a
> wonderfully professionally looking breadboard fassion,  i have beautiful
> square waves heading to the TIP120 darlington transistors :),
> wonderfull.   The problem is that my motors are getting very hot, im
> talking hot.  If I put a lower voltage/phase rated motor on the thing
> the TIPs get hot, thats expected, I think,  but im a bit confused about
> the way these stepper motors are,  i have one from a floppy drive i tore
> apart that gets just warm :), but its weak and its windings are along
> with the others are as follows, could some or one of you please explain
> to me what it is i have and what it is i need?
> 
> disk drive motor
> 
> 1-----2------3-------4-------5
> i connect +12v to say pin 1 which is the lowest common resistance to the
> others
> 
> any of the other motors that get hot
> 
> 1------2-------3
> 4------5-------6
> i connect +12v to say 2 and 5  least common resistance between the other
> 2
> 
> I have tried reading about the documentation on other stepper motors and
> other types of control boards and
> well a lot of the language is abit above my current vocabulary or
> knowledge.  Any help would be great :)
> Phil Smith
>