There is only space enough for three stepper motor drivers in the box. This is ok but it may be nice to add one more for say adding a stepper motor to the milling spindle in the vertical milling mode, which would be good for three axis CNC vertical milling, engraving etc. An extra stepper driver means a bigger box or it could be added outside at the back in some tidy manner. I have wired each stepper motor directly to the driver avoiding plugs and sockets because I thought that they could be a potential source of trouble. However, if a plug and socket is incorporated into the A drive only, it would be possible to unplug the A drive and plug it in to the Z drive motor on the vertical milling head when required. This would avoid adding a fourth stepper driver. The computer would have to be reprogrammed to suit but this in reality may only mean changing over the floppy disc and restarting the computer. This is how it could be done in Turbo CNC, with probably similar methods for other systems.
展开▼
