DC brush servo controller

[peterklos]

Hi I have built a CNC with large steppers and electronics suitable for woodworking.
I want to convert the steppers to DC brush Servo motors with encoders, I am an electronics engineer and can build the electronics but have very limited programming skills.
Can some one advise if they know of a PIC source code to work off standard step /direction outputs from a PC , I have limited funds and cant purchase ready made modules like Gecco (unfortunalty)
Alternativly does anyone have an analouge circuit to drive servos

best regards Peter k

[pminmo]

Might get your started, it's not turn key but:

http://www.microchip.com/download/ap...isc/00532c.pdf

[tjstraz]

I am also looking to build my own servo boards. I found this document on the Microchip website:

http://www.microchip.com/1010/suppdo...n696/index.htm

It has the source code for programming a PIC18CXXX chip.

I'm still in the planning stage, but found this document useful and interesting. I'm interested in hearing from individuals who have had success building their own servo drivers.

[HomeCNC]

That would be Mariss, from Gecko drives