Getting started with Linux, LinuxCNC and CNC

Thanks for this, I will try it out. Will it work woth just one sensor, or two of them are mandatory?

Got it all working, thanks to Tom and John-100 from cnczone.
For future reference, if someone uses ITR8102 opto with common China 5 axis BOB (documents enclosed) following schematics for opto sensors will work.

Also, I found this post on g71 and g72 subroutines, but I cant clearly understand how to implement them?

forum.linuxcnc.org/forum/40-subroutines-...etc-etc?limitstart=0


and this g33 program for knurling looks interesting, but, again, how to use it?

forum.linuxcnc.org/forum/show-your-stuff...-using-g33-emco-120p

I have replced the electronicsand the steppers on my Emco yesterday. Got a slightly better performance than before (mainly due to low voltage power source) bit thats something to work on.

I have few other questions. I used simple china 5axis bob. Got the e stop working properly. My main switch is killing the power to the swittchung supply and the bob.
How can I make linux not to ask me to home it every time I turn the machine off and then on?
How can I make linuxcnc to "turn off" (to dim the power button" when I turn off the main switch?
Because g54 and similar commands wont work when its not homed. And if I turn off the lathe on the main switch, and linuxcnc keeps runing, the position changes I make on it doesnt affect the tool position when I turn the lathe on again.
For instance, if I position the cutter to 0,0 and turn off the lathe, if I move the position in linuxcnc (that is still running) to 10,10, when I turn the machine back on, cutter stays in same position, but it reads 10,10 (and not 0,0 like when I turend it off).
Oh, and one more thing - I dont see the cutter image on preview, when I load the tool with m6 g43 command.
And cancI just copy the tool table fromcthe old setup, I havent made any changes on them physically?
Thanks

Thanks Andy - got it on homing, and tool table is all set up.
As for GPIO, I ll have to work on that, but its doable.

solved