Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: artman12us on March 14, 2015, 10:46:52 PM

Title: Deos Mach3 send pulses to controller?
Post by: artman12us on March 14, 2015, 10:46:52 PM

Does the driver in mach3 send clock signal to my controller board? If so what pin on the parallel is it sending it to. Thanks Art

Title: Re: Deos Mach3 send pulses to controller?
Post by: Hood on March 15, 2015, 03:58:19 AM

It sends them to whichever pin you have set in Ports and Pins, Motor Outputs, for each axes step pin.

Hood

Title: Re: Deos Mach3 send pulses to controller?
Post by: artman12us on March 15, 2015, 07:30:31 AM

Thanks

Title: Re: Deos Mach3 send pulses to controller?
Post by: BR549 on March 15, 2015, 01:32:19 PM

That would depend on What you mean by controller.

(;-) TP

Title: Re: Deos Mach3 send pulses to controller?
Post by: artman12us on March 15, 2015, 06:05:00 PM

I will explain. I had a Hobby CNC 4 axis board that went Kaput. They no longer sell a 4 axis board so I bought 2 - 3 axis boards. I put one together and it works fine with all three axis. So I put the second board together with only the x axis driver chip in to act as the A axis and jumpered pin 2 and 3 of this board to pins 8 and 9 on the first boards serial port. but the fourth axis motor has power but it is not moving. So I wondered if there was another signal I had to get from the second board to the parallel port which is suppose to act as the A axis. Thanks Art

Title: Re: Deos Mach3 send pulses to controller?
Post by: Hood on March 16, 2015, 10:50:21 AM

Could it be  your second board needs an external power source?

Hood

Title: Re: Deos Mach3 send pulses to controller?
Post by: artman12us on March 16, 2015, 11:19:36 AM

No I have power to the motors. I thought maybe I needed to connect a enable pin so I connected pin 1 on one board to pin 1 on the other (parallel port) but that didn't work. This is why I was trying to understand every pin that mach uses on the parallel port. Thanks for your help especially because its more of a electronic problem and not mach per se. Art