Yes, the theory is good, but in practice I had to keep altering settings when cutting different height materials. Also with no home switches the X/Y =0 position is not repeatable. You have to guess the table centre. No good if you're using jig fixtures. If it's working for you, great.
I still have no home/limit switches, but I do plan on adding them. I also stopped using the softlimits. I visually place the cutter where I want to start. Then reference all axis home before starting the program run. I've had no problems with overtravel YET, but I would like a repeatable reference position.
Regards Terry.....
http://www.terry-is.f2s.com/