Hi Gene, > > Its big and bulky as I started about 5 years ago with a Mesa 7i90 and bad > grounding, too many loops generated enough noise I destroyed the 1st 2 > 7i90's, So I cleaned up my grounds AND invested in 3 7i42TA's which > helped the wireing immensely, and gobbled up the remaining noise, but > the Mesa bill was up to a bit over 200 bucks by then. Bulky because the > pi is upside down so the 26 pin header had a short direct shot at the > bigger 7i90's 26 pin header, so there's only maybe 1.125" of cable > between them. The 7i42TA's are stacked like stair-steps on top of the > 7i90. That 7i90 is damaged, stepper out #0 is no more.
The reality that you are using a Pi4 or an AMD motherboard from 2005 to 2019 is then just not really important. It's what's between that and the mechanicals and it's not the Pi4. It's MESA. An OrangePi may only be around for a couple of years. Then discontinued. Maybe in 20 years I won't care. But I really don't want to be changing out my hardware every 2 or 3 years. John _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
