I did see gerrys screen and nearly bought it but decided to have a go at writing my own scripts as it did seem that without a z axis homing switch gerrys screen would not work.

Do like the look of the screen compared to the std mach layout and thinking about it now it would have probably been quicker to get that and fit a home switch.

Ok, just talked myself into it, with a bit of help from you.... Just off to the workshop to fit a homing switch. Will order gerrys screen now.