@gixxerfast said in BLtouch - Mesh doesnt works nice:
@xenon2008 Yes, temperature drift is absloutely a thing, which is why I don't run a permantly attached inductive probe but instead a magnetically attached mechanical switch probe (Klicky probe).
Also, it has been established that an enclosed aluminium frame moves and bends quite a lot while heated. The thermal expansion of aluminium is about 0,2 mm over a length of 300 mm with a delta T of 30° C.
Steel rails attached to aluminium extrusions will cause bending because of a diffrence in thermal expansion coefficients of the different materials.
So in order to get predictable results with an enclosed printer one has to calibrate Z with the same circumstances each time or using some automatic Z-calibration routine which is a bit more complicated.
That aside, how does your startup configuration look like? Do you have separate startup macro or do you have it in your slicer configuration?
Do you load the mesh file during print start or do you always run a G32/G29 before printing?
Have you read this bit ? https://duet3d.dozuki.com/Wiki/Using_mesh_bed_compensation specifically this part: https://duet3d.dozuki.com/Wiki/Using_mesh_bed_compensation#Section_Establish_a_Z_0_datum_using_the_Z_probe
i Load the saved Mesh through the Slicers Start Code
I understand, i also have a 2.4 Voron in Build (its finish, but i dont have time to configure it ...) and know about the klicky...
But then i must "live" with that "problem" ....
Because i dont know how i could solve that with a inductive probe, and i dont could install a klicky on my Sapphire ^^
