Dual Z Axis Configuration, Independent

[anver]

(using google translator) I have a 3 axis CNC for woodworking, I intend to put 2 spindle motors on the Z axis to work independently with 2 different cutters, let's say, the first spindle would mill the part and the second spindle would cut, both working in sequence , question is, what changes do I need to make in mach3? should I use pneumatic drive in conjunction with the ball screw? any help is welcome

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[ger21]

You can do it any way you want. You just need to write your M6 macro to switch axis during the tool change.

[anver]

could you tell me how to configure this?

[anver]

You can do it any way you want. You just need to write your M6 macro to switch axis during the tool change.

you provide this kind of advice, I need to hire someone who knows how to instruct me in these steps. thanks

[ger21]

It depends on your mechanical design.

What you do, is during a tool change, determine which spindle will be used, and do a G52 offset to make the current spindle aligned with the part.
If using pneumatic cylinders to raise and lower the spindles, then you simply raise and lower the appropriate spindles.
If using separate motors and screws, you might consider using Mach3's Swap Axis command to make the current spindle the Z axis.

[anver]

It depends on your mechanical design.

What you do, is during a tool change, determine which spindle will be used, and do a G52 offset to make the current spindle aligned with the part.
If using pneumatic cylinders to raise and lower the spindles, then you simply raise and lower the appropriate spindles.
If using separate motors and screws, you might consider using Mach3's Swap Axis command to make the current spindle the Z axis.

The machine today has only 1 cutting motor on the z axis, I intend to add another cutting motor, this one working with a pneumatic system, using the same wax spindle as the first cutting motor. so there would only be 1 command on the z axis with stepper motor and 1 pneumatic