Best posts made by Wobi

@Wobi
Sorry, I forgot the file 'homez.g'! Now the setting is retained even after a restart.
Thank you for your support.

@Wobi
This thread can be marked as solved, thanks

@jay_s_uk
Thanks
I just saw that the Mellow CNC Tap can also be ordered here. I'll do that now and report back after the conversion.
Wolfgang

@Wobi Hello everyone,
I have now rebuilt.
The macro 'Self-levelling Gantry' and the commands 'G32' and 'G29' ran completely straight away and without repetitions, which was not possible before. The first print went as expected, without any problems, although I accidentally used a 0.6 profile with a 0.4 nozzle. Now I'm going to tackle a big part.
The optical sensor worked straight away as predicted by 'jay_s_uk' above, I only had to apply an additional 5 volt voltage.
This X-axis end stop:
https://www.printables.com/de/model/558512-mellow-cnc-tap-adapter-x-endstop-for-voron-24-and-
I had to print and screw it on.
For me, this conversion was worth it, the leveling is now done without repetitions and within a few minutes.
Externally there was only a slight change visible: when I move the print head up and down vigorously, it moves less than before, but it still moves.

Now two more questions:
Do the commands 'G32' and 'G29' have to be called before printing with a hot or cold printing plate and in exactly this order?
What do I have to enter as the start GCode and the end GCode in Prusa Slicer 2.7?

Thank you for your great help.
Wolfgang