@alankilian Thank you for the reply. Seems the issue is with the PWM signal that gets generated. I have gone and started playing around with the PWM's Hz parameter on the declaration and that does change the amount of grinding - although I am beginning to think that it is just luck...
Anybody any other ideas perhaps?
Hi all,
After a lot of battling with my servo used in the z probe, I have decided to go back to the old normal Z end stop method without bed mesh for printing rectification.
Now the 1000 $ question, which I don't know how...
I have defined the Zmin end stop, as similar to my X and Y; as they both work.
However, it does not seem to trigger the printer to stop once I keep on lowering the gantry. It compresses the micro switch and keeps on going down further.
In the 'Z-Probe' section of config.g; I have put M558 P0 - but I am not sure if this is the right way.
Any/all help appreciated (if possible, with a sample declaration or whatever may be the case....)
Rgds
Tinus
@dc42 Also I don't know if this is by chance, but if I use Q50 in the declaration, then the grinding noise is still there, but of a shorter duration.
@dc42 I have soldered a 6.6k resistor in the wiring for the pwm signal - same thing still....
Hi all,
Is there any way to easily backup files from the web interface? I see I can backup the 'sys' folder, but not the filaments/macros/etc.
Or is the only way to take the microSD out and manually do a backup that way on my PC?
Rgds
Tinus 
Ok I solved it. I mistakenly declared my Z probe incorrectly. Changed it to P5 and now it work as expected....
Thanks, working. Thought it would automatically deploy the probe upon start of G29?