Re: cnc pc board question

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "nltnme_2" <nltnme_2@y...>
wrote:

> does anyone know of a board that can be installed "inside" a pc,

and

> then used to control the cnc motors. I thought I saw on a web site
> once, can't find it now, an inexpensive board that installed in a
> slot on mother board, that had output ports for 4-axises.
>
> Help is appreciated. Thanks in advance

The key words here
-> inexpensive
-> slot mounted
-> 4 axis

all this points to a parallel printer port card that would connect to
an external Stepper driver. Not a stepper driver card.

Since the PC power supply is limited to 5 or 12 volts and the main PC
bus connection would have to handle the total amperage for 4
motors ? I don't think that is going to happen for any decent sized
motors.


When you run across the page again, let us know. I'm thinking Dave
K's connecting to mosfets to run a stepper might be what you were
seeing. not a very sophisticated driver but very innexpensive.

google dak engineering and/or turbocnc and follow the links.

Dave