Okay, I'm very new to CNC. I recently purchased a "hobby" 3 axis 24"x40"chinese-made machine with an add-on 4 axis rotary table. All axis' are calibrated and working great in Mach3. I will be using this machine to make small 3d model parts out of wax, foam, or plaster. Tool paths are being generated with DeskPronto.
Here is what I need help with... Axis A needs to be mounted to to table. Right now my home location for XY and Z is set in one of the back corners of the table.
Do I need a new home location after I mount the 4th axis?
Also, what is the best way to calibrate Z depth and start position for 4 axis milling?
Do I need to dig deeper into Mach 3?
Any help, suggestions, links or reading info would be very much appreciated!