I have built a couple cncs in the past with just printer ports.
I was looking for something to interface with USB and I found you guys I was looking at the PMDX-416 my question is can you use a PMDX-134 and PMDX-407 on a pmdx-416 (at the same time do the stack? ) also wanted to use the ribbon cable for the pmdx-134 . Thanks