Suggest you look on the Mach3 support site where I'm sure this question has come up many times.Ĭorrection If the RAM is greater than 4Gb then you can use 64-bit and 32-bit(32bit os will allow you using only 3gb ram). I think there is an option to install Win7 on a 32 bit PC, and M3 probably will work on that. It is easy and cheap to buy a used 32 bit PC with XP, so if you want to continue to use the parallel port this is the best route. If you have a 64 bit PC you need to use a separate motion controller, preferably through an Ethernet interface. Mach3 will only drive the parallel port on a 32 bit Windows machine. (Although in 32-bit mode you will usually only see about 3.5Gb) If the RAM is under 4Gb then you can use 32-bit or 64-bit. If the RAM is greater than 4Gb then it is only 64-bit. Plenty about and plenty cheap enough, people are giving those away now. Pays to stick with XP for a controller PC. Yes, parallel port will run under W7 but only 32 bit. Last time I thought of doing this I found that needed an adapter board to go with the 64 bit machine-is it still the same? Its XP and going to replace it with a Window 7 machine.
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