Messages

1

SmartBOB controllers and dedicated accessories / Re: I basically need a shopping list to go along with a PMDX-424

« on: August 21, 2020, 10:46:29 AM »

Well, i see that the PMDX board has "slots" with 3 pins for each motor, called Motor 0 to Motor3A and 3B. I figure these wires send the "data" or pulses to another board that controls the stepper motors. How are these 3 pins connected to the stepper drivers? Heres an example of a gecko controller

https://www.geckodrive.com/amfile/file/download/file_id/29/product_id/18/

This manual talks about terminals 9, 10 and 12 as "direction" "step" and "ground". Am i to wire these 3 pins to the 3 pins on the PMDX-424 (say for Motor0)? I see that the PMDX board pins also say "Step, Com and Dir" which i figure match the ones on the gecko.

2

SmartBOB controllers and dedicated accessories / I basically need a shopping list to go along with a PMDX-424

« on: August 19, 2020, 05:48:44 PM »

Hello, im interested in a PMDX-424 pulse engine and Mach 4 combo but.. i'm basically not sure what else i need to run a few stepper motors.  Im not new to the world of CNC but until now i have only used fully enclosed controllers.

If i understand correctly the PMDX-424 is not meant to be physically connected to the stepper motors, how do i link the independent motors to the board? What other boards and cables do i need? What cables do i need to connect the boards to the computer or to each other? I figure this information might be trivial for others but it is not for me.

I would prefer to purchase everything in one go and not make a trial-and-error research project out of this.