I've not played w/ it too much, but I do have a mill moving under power from my Grex.. I have my motor port/pins set to port 3, pin 2... it works.. I'm not sure if it really matters when it comes to the Grex.. the port pin side of things anyway.... it know's which pins are the axis pins etc..
I'm going to work on my limits next as well so we'll see..
One thing to remember about the Grex and its support [you'd mentioned the frustration w/ the support]. Currently.. the Grex is in a betta testing stage for use w/ Mach3.. it's not for general release "officially" yet.. so if you feel you can handle messing around with it.. great.. however if your looking for a plug and play solution.. its not "there" yet... when its officially released w/ full firmware and support to a "lock-down" version of Mach3, you can rest assured that it will get alot more support. Not only that.. but alot more people will be buying and using it.. and you will get alot more help that way as well.
Not to discourage you from buying or using one.. they are great.. just realize that we're the "test tube" for these things right now.. in the next couple months things will really come into focus and the G100 will REALLY take off..
I'm glad I bought mine.. even if it sat on the shelf for 8 months.. it's all worth it in the end
Jerry
JerryFlyGuy
The more I know... the more I realize I don't
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)