Re: [CAD_CAM_EDM_DRO] Re: Whither goest DOS?

----- Original Message -----
From: "Mr. sausage" <sirsausage@...>
>
> Although I'm completly new to PC based CNC, I am amazed this day and age
> people use a PC parallel port and software timing to control either
steppers
> (or what I call a 'stepper emulator' Geckos). I bought the deskwinnc card
> because it is a serial controlled device and, although I haven't even
> assembled my system yet, I'm hoping it will relieve me of this huge
concern
> of PC Operating System.
>
> How would *you* most like to control your CNC device from your PC?

My only thought on this is that, by going to serial control, you are pretty
much tying yourself to one manufacturer. The serial interfaces which I have
seen available so far all seem to use some kind of dedicated system which
links them with a particular CAM program or machine and so lack flexibility.
From the hobbiests point of view, use of the parallel port and steppers
allows a wide range of options and the opportunity to use easily salvaged
motors and home-made drivers etc.
If someone were to publish on the internet a freely available design for a
serial interface which could be made at home, together with any necessary
PIC code etc. - and which gave the option of selecting communications
protocol, altering pinouts to suit various machines etc., then I think many
more people would go the serial/USB route.

Ian
--
Ian W. Wright
Sheffield UK
www.iw63.freeserve.co.uk