by cncdrive » Sat Nov 20, 2021 11:28 am
Hi,
The driver test of Mach3 works only with the parallel port.
My advice is to verify the ports and pins settings, you have to set port 1. for all I/Os when using the UC100.
Also open the UC100 plugin in the Mach3/Plugins menu and set the kernel frequency on that page from the default 100kHz to 25kHz only, because maybe the issue is that your drives can't read that high step frequency.