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| BillTodd:
Thanks. Just tried UBL with a 3 x 3 mesh and... Zilch My probe off-set is -5.4 which homes perfectly to 0.00 at bed centre. G29 P1 T prints a nice couple of nice 'maps' with only the home position dimensioned at -4.995 then stops at the second 2/9 spot with [ ] and prints ok as if finished If I try to use the LCD and spinwheel : It lowers the Z to 0.000 which is actually about 3mm about the bed , after winding the knob down 3000 um (WFT is the res so fine?) on each of the nine positions the F*********** starts over again and get caught in a loop : :doh: Tried again with a 3x4 mesh and got two measurements (apparently , iit does not probe points it cannot get to - whatever that means) , third try with 5x7 mesh... |
| BillTodd:
OK I kinda see wahts happening here, although the Z height thing is confusing. It is missing all points on the periphery because they are inaccessible (must be something to do with probe off-set but????) My 5x7 resulted in: ( 5,235) (115,235) 0 1 2 3 4 6 | . . . . . | 5 | . -4.950 -4.980 [-4.965] . | 4 | . -4.945 -4.995 -4.990 . | 3 | . -4.945 -4.915 -4.985 . | 2 | . -4.980 -4.955 -4.880 . | 1 | . -4.995 -4.990 -4.980 . | 0 | . . . . . 0 1 2 3 4 ( 5, 5) (115, 5) which looks consistent, but I don't think it actually touched down on any of those points . Aha It drops close to bed with probe retracted and them extends probe to test , then does a proper touch later. I do not understand why the reference is about -5,although I believe I set the min_Z to -5.0. The Z homes to +5.4 and BED top is actually Z=0.00 |
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