0.005mm skipped at each probe
I just installed a genuine BL-Touch in replacement of an inprecise chinese clone.
It seem to be very precise but the bed is coming up by 0.005mm increment at each probe and I don't understand what can cause this error. When I move multiple times up and down from UI here is no glitch (piece of paper between bed and nozzle).
Here are my Z-Probing parameters
// #################### Z-Probing #####################
#define Z_PROBE_Z_OFFSET 0
#define Z_PROBE_Z_OFFSET_MODE 0
#define UI_BED_COATING 0
#define FEATURE_Z_PROBE 1
#define EXTRUDER_IS_Z_PROBE 0
#define Z_PROBE_DISABLE_HEATERS 0
#define Z_PROBE_BED_DISTANCE 10
#define Z_PROBE_PIN ORIG_Z_MIN_PIN
#define Z_PROBE_PULLUP 1
#define Z_PROBE_ON_HIGH 1
#define Z_PROBE_X_OFFSET -36
#define Z_PROBE_Y_OFFSET 0
#define Z_PROBE_WAIT_BEFORE_TEST 0
#define Z_PROBE_SPEED 10
#define Z_PROBE_XY_SPEED 350
#define Z_PROBE_SWITCHING_DISTANCE 6
#define Z_PROBE_REPETITIONS 1
#define Z_PROBE_USE_MEDIAN 0
#define Z_PROBE_HEIGHT 3.31
#define Z_PROBE_DELAY 0
#define Z_PROBE_START_SCRIPT "M340 P0 S647"
#define Z_PROBE_FINISHED_SCRIPT "M340 P0 S1473"
#define Z_PROBE_RUN_AFTER_EVERY_PROBE ""
#define Z_PROBE_REQUIRES_HEATING 0
#define Z_PROBE_MIN_TEMPERATURE 150
#define FEATURE_AUTOLEVEL 1
#define FEATURE_SOFTWARE_LEVELING 0
#define Z_PROBE_X1 20
#define Z_PROBE_Y1 20
#define Z_PROBE_X2 290
#define Z_PROBE_Y2 20
#define Z_PROBE_X3 20
#define Z_PROBE_Y3 290
#define BED_LEVELING_METHOD 1
#define BED_CORRECTION_METHOD 0
#define BED_LEVELING_GRID_SIZE 7
#define BED_LEVELING_REPETITIONS 5
Here is a log output of multiple G30
19:28:56.131: Slow command added:G28
19:28:56.131: N19 G28
19:28:56.134: ok 19
19:29:10.254: busy:processing (7)
19:29:10.344: X:-4.00 Y:-3.00 Z:0.000 E:0.0000
19:29:34.368: wait (25)
19:29:35.216: N20 G1 Z7 X155 Y155 F18000
19:29:35.220: ok 20
19:29:39.403: wait (4)
19:29:40.031: N21 G30 P1
19:29:40.033: ok 21
19:29:42.032: Z-probe:6.995 X:155.00 Y:155.00
19:29:43.032: wait (2)
19:29:43.743: N22 G30 P1
19:29:43.749: ok 22
19:29:45.379: Z-probe:6.990 X:155.00 Y:155.00
19:29:46.407: wait (2)
19:29:46.740: N23 G30 P1
19:29:46.743: ok 23
19:29:48.369: Z-probe:6.985 X:155.00 Y:155.00
19:29:49.393: wait (2)
19:29:49.761: N24 G30 P1
19:29:49.766: ok 24
19:29:51.458: Z-probe:6.980 X:155.00 Y:155.00
19:29:52.453: wait (2)
19:29:53.115: N25 G30 P1
19:29:53.121: ok 25
19:29:54.784: Z-probe:6.975 X:155.00 Y:155.00
19:29:55.784: wait (2)
19:29:56.061: N26 G30 P1
19:29:56.066: ok 26
19:29:57.770: Z-probe:6.975 X:155.00 Y:155.00
19:29:58.769: wait (2)
19:29:59.684: N27 G30 P1
19:29:59.687: ok 27
19:30:01.289: Z-probe:6.970 X:155.00 Y:155.00
19:30:02.288: wait (2)
19:30:02.483: N28 G30 P1
19:30:02.489: ok 28
19:30:04.086: Z-probe:6.965 X:155.00 Y:155.00
19:30:04.086: wait
19:30:05.016: N29 G30 P1
19:30:05.020: ok 29
19:30:06.618: Z-probe:6.955 X:155.00 Y:155.00
19:30:06.618: wait
19:30:07.242: N30 G30 P1
19:30:07.245: ok 30
19:30:08.842: Z-probe:6.955 X:155.00 Y:155.00
19:30:08.842: wait
19:30:09.482: N31 G30 P1
19:30:09.485: ok 31
19:30:11.079: Z-probe:6.945 X:155.00 Y:155.00
19:30:11.079: wait
19:30:12.053: N32 G30 P1
19:30:12.058: ok 32
19:30:13.651: Z-probe:6.940 X:155.00 Y:155.00
19:30:13.651: wait
19:30:14.499: N33 G30 P1
19:30:14.528: ok 33
19:30:16.117: Z-probe:6.940 X:155.00 Y:155.00
19:30:16.121: wait
19:30:16.416: N34 G30 P1
19:30:16.481: ok 34
19:30:18.075: Z-probe:6.935 X:155.00 Y:155.00
19:30:18.075: wait
19:30:18.096: N35 G30 P1
19:30:18.099: ok 35
19:30:19.673: Z-probe:6.930 X:155.00 Y:155.00
19:30:19.673: wait
19:30:19.702: N36 G30 P1
19:30:19.705: ok 36
19:30:21.174: N37 G30 P1
19:30:21.295: Z-probe:6.925 X:155.00 Y:155.00
19:30:21.295: ok 37
19:30:22.477: N38 G30 P1
19:30:22.884: Z-probe:6.915 X:155.00 Y:155.00
19:30:22.884: ok 38
19:30:22.977: N39 G30 P1
19:30:23.375: N40 G30 P1
19:30:23.702: N41 G30 P1
19:30:23.935: N42 G30 P1
19:30:24.191: N43 G30 P1
19:30:24.406: N44 G30 P1
19:30:24.523: Z-probe:6.910 X:155.00 Y:155.00
19:30:24.523: ok 39
19:30:24.605: N45 G30 P1
19:30:24.799: N46 G30 P1
19:30:25.008: N47 G30 P1
19:30:25.192: N48 G30 P1
19:30:26.104: Z-probe:6.905 X:155.00 Y:155.00
19:30:26.104: ok 40
19:30:26.104: N49 G30 P1
19:30:27.665: Z-probe:6.900 X:155.00 Y:155.00
19:30:27.665: ok 41
19:30:27.665: N50 G30 P1
19:30:29.229: Z-probe:6.900 X:155.00 Y:155.00
19:30:29.229: ok 42
19:30:29.230: N51 G30 P1
19:30:30.786: Z-probe:6.895 X:155.00 Y:155.00
19:30:30.790: ok 43
19:30:30.790: N52 G30 P1
19:30:32.346: Z-probe:6.890 X:155.00 Y:155.00
19:30:32.347: ok 44
19:30:32.347: N53 G30 P1
19:30:33.903: Z-probe:6.880 X:155.00 Y:155.00
19:30:33.907: ok 45
19:30:33.907: N54 G30 P1
19:30:35.460: Z-probe:6.880 X:155.00 Y:155.00
19:30:35.463: ok 46
19:30:35.464: N55 G30 P1
19:30:37.016: Z-probe:6.875 X:155.00 Y:155.00
19:30:37.016: ok 47
19:30:37.016: N56 G30 P1
19:30:38.634: Z-probe:6.865 X:155.00 Y:155.00
19:30:38.634: ok 48
19:30:38.634: N57 G30 P1
19:30:40.207: Z-probe:6.865 X:155.00 Y:155.00
19:30:40.207: ok 49
19:30:40.207: N58 G30 P1
19:30:41.759: Z-probe:6.860 X:155.00 Y:155.00
19:30:41.760: ok 50
19:30:41.760: N59 G30 P1
19:30:43.308: Z-probe:6.855 X:155.00 Y:155.00
19:30:43.308: ok 51
19:30:43.308: N60 G30 P1
19:30:44.942: Z-probe:6.850 X:155.00 Y:155.00
19:30:44.943: ok 52
19:30:44.943: N61 G30 P1
19:30:46.491: Z-probe:6.845 X:155.00 Y:155.00
19:30:46.491: ok 53
19:30:48.039: Z-probe:6.840 X:155.00 Y:155.00
19:30:48.039: ok 54
19:30:49.657: Z-probe:6.830 X:155.00 Y:155.00
19:30:49.657: ok 55
19:30:51.218: Z-probe:6.825 X:155.00 Y:155.00
19:30:51.218: ok 56
19:30:52.762: Z-probe:6.825 X:155.00 Y:155.00
19:30:52.762: ok 57
19:30:54.302: Z-probe:6.815 X:155.00 Y:155.00
19:30:54.302: ok 58
19:30:55.842: Z-probe:6.815 X:155.00 Y:155.00
19:30:55.842: ok 59
19:30:57.378: Z-probe:6.805 X:155.00 Y:155.00
19:30:57.378: ok 60
19:30:58.914: Z-probe:6.800 X:155.00 Y:155.00
19:30:58.918: ok 61
19:31:00.451: Z-probe:6.795 X:155.00 Y:155.00
Comments
Please try the dev version. Have lately fixed some autoleveling issues and hope that was part of it.