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| author | Julien Lirochon <julien@lirochon.net> | 2019-09-29 22:56:46 +0200 |
|---|---|---|
| committer | KevinOConnor <kevin@koconnor.net> | 2019-09-29 16:56:46 -0400 |
| commit | 0c247e55e6ec62664d28f1274c553919ce870983 (patch) | |
| tree | d84ac231b7c86304a2faf3a8655c11f15d73b40c /docs | |
| parent | 9fcd3e75cd69ba265cce41f436dc1d1187f433e6 (diff) | |
| download | kutter-0c247e55e6ec62664d28f1274c553919ce870983.tar.gz kutter-0c247e55e6ec62664d28f1274c553919ce870983.tar.xz kutter-0c247e55e6ec62664d28f1274c553919ce870983.zip | |
probe: Add range to probe accuracy results (#2015)
Signed-off-by: Julien Lirochon <julien@lirochon.net>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/Probe_Calibrate.md | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/docs/Probe_Calibrate.md b/docs/Probe_Calibrate.md index 3cb7513a..bd1fc8a1 100644 --- a/docs/Probe_Calibrate.md +++ b/docs/Probe_Calibrate.md @@ -93,22 +93,23 @@ Recv: // probe at -0.003,0.005 is z=2.506948 Recv: // probe at -0.003,0.005 is z=2.506948 Recv: // probe at -0.003,0.005 is z=2.519448 Recv: // probe at -0.003,0.005 is z=2.506948 -Recv: // probe accuracy results: maximum 2.506948, minimum 2.519448, average 2.513198, median 2.513198, standard deviation 0.006250 +Recv: // probe accuracy results: maximum 2.519448, minimum 2.506948, range 0.012500, average 2.513198, median 2.513198, standard deviation 0.006250 ``` Ideally the tool will report an identical maximum and minimum value. (That is, ideally the probe obtains an identical result on all ten -probes.) However, it's normal for the minimum/maximum distance to -differ by one Z step_distance or up to 5 microns (.005mm). So, in the -above example, since the printer uses a Z step_distance of .0125, the -results would be considered normal. +probes.) However, it's normal for the minimum and maximum values +to differ by one Z step_distance or up to 5 microns (.005mm). +The distance between the minimum and the maximum value is called the +range. So, in the above example, since the printer uses a +Z step_distance of .0125, a range of 0.012500 would be considered normal. -If the results of the test show a minimum and maximum distance that -differs by more than 25 microns (.025mm) then the probe does not have -sufficient accuracy for typical bed leveling procedures. It may be -possible to tune the probe speed and/or probe start height to improve -the repeatability of the probe. The `PROBE_ACCURACY` command allows -one to run tests with different parameters to see their impact - see +If the results of the test show a range value that is greater than +25 microns (.025mm) then the probe does not have sufficient accuracy +for typical bed leveling procedures. It may be possible to tune the +probe speed and/or probe start height to improve the repeatability +of the probe. The `PROBE_ACCURACY` command allows one to run tests +with different parameters to see their impact - see the [G-Codes document](G-Codes.md) for further details. If the probe generally obtains repeatable results but has an occasional outlier, then it may be possible to account for that by using multiple samples |