Quote Originally Posted by JAZZCNC View Post
The only way you can get your Macbook to work is with an external motion control device like the Uc100 etc.

Please take my word on this to save your self some serious stress and time by not even going down this route.

My first choice and strong advise is to buy an external Motion control and Ethernet based one not USB as Ethernet is so much better. There really is no comparison to parallel port and you'll have much more stable machine that performs like a rocket.

Edit: Just to Add IMO the Parallel port is dieing Technology so best avoided. Like wise USB is unstable for timing critical devises so again best avoided. Ethernet is designed for high speed pulse signals and perfect at it even over distance.
Thanks so much for the great time saving advice. You have given me a new set of things to think about. Please give me a bit of time to formulate an intelligent response, most likely including several questions.

Thanks Jazz and Mikey.