Re: Setup and bed levelling

Well, it's been another few hours, but things are looking sane. The validation mesh adheres to the bed all over... more or less. I'm going to call it a day at this stage.

SENDING:G29 S3
Mesh saved in slot 3
Done.
SENDING:G29 T
Bed Topography Report:
(0,4)                           (4,4)
(1,187)                        (179,187)
 -0.350   -0.385   -0.460   -0.670   -0.940

 -0.300   -0.245   -0.225   -0.455   -0.715

[-0.421]  -0.300   -0.260   -0.400   -0.630

 -0.480   -0.465   -0.485   -0.610   -0.890

 -1.000   -0.850   -0.855   -1.095   -1.180
(1,1)                            (179,1)
(0,0)                             (4,0)

Tomorrow I'll try and print something.

A couple of notes though:
Marlinfw.org says that G26 K takes a boolean operator. The comments in G26_Mesh_Validation_Tool.cpp do not
O and P read differently, but sound like they try to achieve the same thing.

I tried to use G29 B but it didn't appear to offset my measurements by the feeler gauge thickness. But that was hours ago, and I might have just missed it.
The P3 smart fill option did not behave quite as expected. See notes in a previous post.
P4 has the following comment:

Quote

* You are editing the Mesh Points.
* If you have too little clearance and not much plastic was extruded in an area, you want to
* LOWER the Mesh Point at the location. If you did not get good adheasion, you want to
* RAISE the Mesh Point at that location.

This is obtuse. As I understand it, the mesh describes the offset of a point on the bed from the z-stop. (At least in my case, with no probe)
My z-stop is just above the bed, therefore all of my mesh points are negative. More negative = larger downward offset = lower bed. Therefore, to RAISE the mesh point, you must DECREASE it's value.