Hi Steve,

Long time no speak (Remember me, Hemsworthlad.!!)

If you think this is good addition Get the home switch's ASAP they really are one of the best and simplist things you can add to a machine.!

If you want to expand on this script and and basicly make it full autotool setting checkout Bigtex's screenset then mod the code to suit your screen or machine if like me you don't like the MachBlue screen.
I modded my own screen and probe scripts, in the early days of tex's scripts I adapted(along with others) tweaked them so they worked with metric or imperial units checking which was being used. I also altered the code to double tap the probe differantly for some reason but can't remember why.? All I know is it wouldn't work how I wanted it.!! . . Initial fast probe then a small retract then slow accurate one. I found it far more accurate and you didn't need to mess about positioning the tool 20-30mm above the pad as the first fast probe was quick enough to probe from highup and not seem like for waiting for ever.!!

In the past I wrote(or Hacked others) and used probe scripts all the time by MDI calling macros, top of material, material edge, corner, circle centre, circle outer, parallel edge etc and they are so usefull I wouldn't have been without them thou I never took the time to fully build a custom screen to make best use of them. Then Gerry(Ger21) came along with his 2010 screen which had pritty much the same probe routines so now I just use gerry's screen.! . . . It's Mega.

The probes have saved me hours and hours in setup time and got my arse out of so much trouble it's unreal. Between the home switchs and these probes they must have literialy saved me hundreds and hundreds of pounds in lost material and lost work when shit happens. ..!! (often)
With probes and home switchs I can be back in absolute position in less than a minute, no loss of position, Either start code from beggining or use "run from here" if half way thru a job say after a tool break or something.!!
Job setup time is reduced to less than a minute, imagine having to manualy align accurately the metrial edge parallel to an Axis or the spindle or find centre of hole or centre of circler boss.?
Normally this would involve setting up dial indicator and either indicating off the axis or putting in the spindle then indicating along the edge. .
With the parallel edge probe script I just tell it the distance between 2 points along the edge to probe the distance to retract off the edge and away it goes and reports back the angle, difference distance positive or negative so a quick tap here and there and I have a perfectly parallel edge all done in seconds and perfectly accurate no guess work. .!! . . Same with centre of circle.!! Stick tool some where near centre click and watch it find centre in seconds

To be honest Playing with screens and scripts is good run and quite rewarding but honestly for £20 I'd just buy Gerry's screen because it does everything.!!