Autobedlevelling with 0.92.9
I am kind of running into a tiny problem here. I am doing autoleveling with an inductive sensor through 3mm glass. I am doing a G32 s2 everytime before a print, because I have a removable glass plate with a fixed bed and I want to be sure that i get it correct everytime. No my problem is that I have changed the points the probe is probing. It probes with this sequence: Bottom left, Bottom righ, middle top of the bed and forms a triange. The examples on the Zprobing page show a different seuqence. Bottom left, Bottom right and Top left. Is this a problem?
I am asking because although it gets quite close to being perfect, whenever it moves to the right side of the glassbed, it raises the z axis for about 0.1mm. The prints still are ok, but it still bothers me not beiing perfect. I am seeing the leadscrew turning, although there isnt actually a need.
Is the way I have my probing points setup a problem, or does the firmware compute the plane either way?
Do I have to input a Gcode after g32 s2 to make it work better?
the problem is consistent and I will try the bending correction and report back.
thanks for the tip about bending correction. It sure helped. Tricky to align, but worked.
It probably has to do with what you said about probing the center of the washers.
However I have also another problem.
I am using a Malzi board and have disabled z min endstop and connected the probe at z min endstop.
Now I have a certain probe distance set, however I am not sure how I can set my Z min position. Everytime my printer starts, it thinks its at z0, which makes sense. If I do a g28 x0 y0, it zeroes xy correctly. If I start to probe however and then start to print, my nozzle is in the air.
To my understanding, when doing a g32 and probing, z0 is set and should be equal to the height the probe is triggered minus the probe height in the eeprom. Isnt that the case?
If i turn the printer on and the probe is 2-3 mm over the bed, it prints on the air.
Anyone can make sense of that?