On Thu, Feb 3, 2022 at 4:25 PM Andy Howell <[email protected]> wrote:
> > Starting from scratch, I would likely stay away from parallel ports. Our > current CNC router's controller uses the parallel port, so that is what > I have to go with. Buy an Ethernet Interfaced Mesa board for $89 and it has a DB25 connector on the back that works just like a parallel port. Then you can connect that DB25 to your $10 Chinese breakout board. Basically, it is an Ethernet to Parallel port bridge, but what you end up with for the $89 is two parallel parts that have *much* better performance than a real parallel port. The Mesa card would be a significant performance upgrade while still allowing the CNC machine to keep its existing 25-pin parallel cable. Also it opens up the option to use any computer, even if it does not have a built-in parallel port. A $35 Raspberry Pi could even work (but you'd be better off with any of those cheap Intel boards that have two Ethernet ports. Or I'm sure you can find an older PC in someone's junk pile -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
