Thanks, handy to know it works okay, I think I still have Borland Turbo Pascal for DOS so might still be useful :glee: and I have a 5 1/4 floppy drive for the media but don't know if it will work with Windows 7.
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Yep, Mach3 own high priority driver takes care of that. I'm not sure it can work with Win7 and 8. Although I've read some people use it under Win7.
As for the coordinates of the machine, my personal opinion is that the near left corner relative to the operator's most convenient position should be assigned X0/Y0. It does not matter which axis is the longest one. Thus you maintain correspondence to the CAD and CAM software. Setting work zero is another thing and depends on where you fix the material on the table. For long machining sequences I zero the machine by means of home switches (Mach3) and then write down the real (machine) coordinates of the work zero. Just in case something goes wrong I am able to reposition with acceptable accuracy.
The current version requires full blown boraland 7 (which can be had at <http://vetusware.com/download/Pascal%207.01/?id=3724>. I don't remember the reason Turbopascal won't work, but that is what the authors told me. V7 and windows7 won't cooperate either, so you will need to run that in a virtual box.
There are also more recent compilers out there that should work but I haven't tried them yet.