Solved Z Reset After G29 ROBO R1 PLUS Marlin

I'm using BLTouch sensor for probing. I got everything set in the Configuration.h file.
Everything works, but right at the last point of G29, it resets Z to zero and carries on with it, and so it prints in the air. Help!

Anyone successfully got the servo switch probe working for Robo 3D printer?
It is the same concept.

 

Fixed!
Thank you for all the replies.

It was actually not resetting the Z to 0. It was just changing the position from compensating for the probe's location from the extruder. When that happens the Z will turn into a different value. This had me thinking it was resetting the Z to 0. I was wrong.

So now to make it print on the bed and not on the air, set this value in Configuration.h to 0.

#define Z_PROBE_OFFSET_FROM_EXTRUDER 0

In the startup code add G92 to adjust Z offset.

G28 ;home X, Y, Z
G29 ;run autolevel
G92 Z2 ;Z offset lower = Z pos, lift = Z neg

*Note: Your Z value after G92 will be different, it depends on how far your BLTouch is from the extruder in Z direction.

 

Hi, do you have any tips on getting the bltouch to work, as in what to change in the .h files? I cant seem to find it online and I'm new to arduino

Thanks!

 

"Hi, do you have any tips on getting the bltouch to work, as in what to change in the .h files? I cant seem to find it online and I'm new to arduino"​

Thanks!

Welcome,
Not sure it will help but I found this:


You might want to begin a new thread on this topic.

 

Thanks, yeah I'll start a new thread, will probably be useful to some others as well