# Dismissable probing data points for meshes

**URL:** <https://klipper.discourse.group/t/dismissable-probing-data-points-for-meshes/6029>\
**Category:** Features\
**Created:** [January 18, 2023, 5:29pm UTC](https://klipper.discourse.group/t/dismissable-probing-data-points-for-meshes/6029 "2023-01-18T17:29:22Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Seriosha](https://avatars.discourse-cdn.com/v4/letter/s/ba9def/32.png) [@Seriosha](https://klipper.discourse.group/u/Seriosha)\
**Post date:** [January 18, 2023, 5:29pm UTC](https://klipper.discourse.group/t/dismissable-probing-data-points-for-meshes/6029/1 "2023-01-18T17:29:22Z")

</div>

I discovered a weird Problem with inconsistencies of the first up to three probes when doing a PROBE\_ACCURACY or Mesh. After a couple of probes (usually from the second on), it stabilises at ± 1 ADC Step around a certain value. This occurs after every x/y/z movement except the consecutive multi-probing z moves.

Since this introduces quite a high deviation in the mesh points, i would like to somehow discard for example the first value(s), and only use the rest for the mesh. The amount of discarded probes should be configurable.

I am using a Super P.I.N.D.A. on a SKR Mini E3 V3 in a RatRig V-Minion running RatOS (Klipper ofc) and as an example for the problem i append a part of the console output so the problem might be clarified.

Logo  
Minion  
​  
Send code…  
20:09  
Klipper state: Ready  
20:58  
G28  
20:58  
echo: Homing Z  
20:58  
PROBE\_ACCURACY  
20:58  
PROBE\_ACCURACY at X:90.000 Y:90.000 Z:15.000 (samples=10 retract=0.700 speed=15.0 lift\_speed=15.0)  
20:58  
probe at 90.000,90.000 is z=1.245000  
20:58  
probe at 90.000,90.000 is z=1.313750  
20:58  
probe at 90.000,90.000 is z=1.317500  
20:58  
probe at 90.000,90.000 is z=1.318750  
20:58  
probe at 90.000,90.000 is z=1.320000  
20:58  
probe at 90.000,90.000 is z=1.322500  
20:58  
probe at 90.000,90.000 is z=1.321250  
20:58  
probe at 90.000,90.000 is z=1.317500  
20:58  
probe at 90.000,90.000 is z=1.318750  
20:58  
probe at 90.000,90.000 is z=1.321250  
20:58  
probe accuracy results: maximum 1.322500, minimum 1.245000, range 0.077500, average 1.311625, median 1.318750, standard deviation 0.022333  
20:58  
PROBE\_ACCURACY  
20:58  
PROBE\_ACCURACY at X:90.000 Y:90.000 Z:2.021 (samples=10 retract=0.700 speed=15.0 lift\_speed=15.0)  
20:58  
probe at 90.000,90.000 is z=1.323750  
20:58  
probe at 90.000,90.000 is z=1.326250  
20:58  
probe at 90.000,90.000 is z=1.325000  
20:58  
probe at 90.000,90.000 is z=1.327500  
20:58  
probe at 90.000,90.000 is z=1.327500  
20:58  
probe at 90.000,90.000 is z=1.327500  
20:58  
probe at 90.000,90.000 is z=1.328750  
20:58  
probe at 90.000,90.000 is z=1.328750  
20:58  
probe at 90.000,90.000 is z=1.330000  
20:58  
probe at 90.000,90.000 is z=1.328750  
20:58  
probe accuracy results: maximum 1.330000, minimum 1.323750, range 0.006250, average 1.327375, median 1.327500, standard deviation 0.001807  
20:59  
PROBE\_ACCURACY  
20:59  
PROBE\_ACCURACY at X:90.000 Y:90.000 Z:2.029 (samples=10 retract=0.700 speed=15.0 lift\_speed=15.0)  
20:59  
probe at 90.000,90.000 is z=1.331250  
20:59  
probe at 90.000,90.000 is z=1.330000  
20:59  
probe at 90.000,90.000 is z=1.330000  
20:59  
probe at 90.000,90.000 is z=1.331250  
20:59  
probe at 90.000,90.000 is z=1.330000  
20:59  
probe at 90.000,90.000 is z=1.328750  
20:59  
probe at 90.000,90.000 is z=1.330000  
20:59  
probe at 90.000,90.000 is z=1.330000  
20:59  
probe at 90.000,90.000 is z=1.330000  
20:59  
probe at 90.000,90.000 is z=1.330000  
20:59  
probe accuracy results: maximum 1.331250, minimum 1.328750, range 0.002500, average 1.330125, median 1.330000, standard deviation 0.000673  
20:59  
G91  
G1 Z+10 F1500  
G90  
20:59  
G91  
G1 X-10 F6000  
G90  
20:59  
PROBE\_ACCURACY  
20:59  
PROBE\_ACCURACY at X:80.000 Y:90.000 Z:12.030 (samples=10 retract=0.700 speed=15.0 lift\_speed=15.0)  
20:59  
probe at 80.000,90.000 is z=1.270000  
20:59  
probe at 80.000,90.000 is z=1.322500  
20:59  
probe at 80.000,90.000 is z=1.322500  
20:59  
probe at 80.000,90.000 is z=1.323750  
20:59  
probe at 80.000,90.000 is z=1.326250  
20:59  
probe at 80.000,90.000 is z=1.326250  
20:59  
probe at 80.000,90.000 is z=1.327500  
20:59  
probe at 80.000,90.000 is z=1.327500  
20:59  
probe at 80.000,90.000 is z=1.328750  
20:59  
probe at 80.000,90.000 is z=1.328750  
20:59  
probe accuracy results: maximum 1.328750, minimum 1.270000, range 0.058750, average 1.320375, median 1.326250, standard deviation 0.016938  
20:59  
PROBE\_ACCURACY  
20:59  
PROBE\_ACCURACY at X:80.000 Y:90.000 Z:2.029 (samples=10 retract=0.700 speed=15.0 lift\_speed=15.0)  
20:59  
probe at 80.000,90.000 is z=1.332500  
20:59  
probe at 80.000,90.000 is z=1.331250  
20:59  
probe at 80.000,90.000 is z=1.330000  
20:59  
probe at 80.000,90.000 is z=1.330000  
20:59  
probe at 80.000,90.000 is z=1.330000  
20:59  
probe at 80.000,90.000 is z=1.331250  
20:59  
probe at 80.000,90.000 is z=1.331250  
20:59  
probe at 80.000,90.000 is z=1.330000  
20:59  
probe at 80.000,90.000 is z=1.330000  
20:59  
probe at 80.000,90.000 is z=1.330000  
20:59  
probe accuracy results: maximum 1.332500, minimum 1.330000, range 0.002500, average 1.330625, median 1.330000, standard deviation 0.000839  
21:02  
PROBE\_ACCURACY  
21:02  
PROBE\_ACCURACY at X:80.000 Y:90.000 Z:2.030 (samples=10 retract=0.700 speed=15.0 lift\_speed=15.0)  
21:02  
probe at 80.000,90.000 is z=1.331250  
21:02  
probe at 80.000,90.000 is z=1.330000  
21:02  
probe at 80.000,90.000 is z=1.330000  
21:02  
probe at 80.000,90.000 is z=1.331250  
21:02  
probe at 80.000,90.000 is z=1.330000  
21:02  
probe at 80.000,90.000 is z=1.332500  
21:02  
probe at 80.000,90.000 is z=1.331250  
21:02  
probe at 80.000,90.000 is z=1.332500  
21:02  
probe at 80.000,90.000 is z=1.332500  
21:02  
probe at 80.000,90.000 is z=1.330000  
21:02  
probe accuracy results: maximum 1.332500, minimum 1.330000, range 0.002500, average 1.331125, median 1.331250, standard deviation 0.001038  
21:02  
G91  
G1 Z+10 F1500  
G90  
21:02  
PROBE\_ACCURACY  
21:02  
PROBE\_ACCURACY at X:80.000 Y:90.000 Z:12.030 (samples=10 retract=0.700 speed=15.0 lift\_speed=15.0)  
21:02  
probe at 80.000,90.000 is z=1.265000  
21:02  
probe at 80.000,90.000 is z=1.325000  
21:02  
probe at 80.000,90.000 is z=1.321250  
21:02  
probe at 80.000,90.000 is z=1.322500  
21:02  
probe at 80.000,90.000 is z=1.323750  
21:02  
probe at 80.000,90.000 is z=1.323750  
21:02  
probe at 80.000,90.000 is z=1.323750  
21:02  
probe at 80.000,90.000 is z=1.323750  
21:02  
probe at 80.000,90.000 is z=1.325000  
21:02  
probe at 80.000,90.000 is z=1.325000  
21:02  
probe accuracy results: maximum 1.325000, minimum 1.265000, range 0.060000, average 1.317875, median 1.323750, standard deviation 0.017660  
21:02  
G91  
G1 X-10 F6000  
G90  
21:03  
PROBE\_ACCURACY  
21:03  
PROBE\_ACCURACY at X:70.000 Y:90.000 Z:2.025 (samples=10 retract=0.700 speed=15.0 lift\_speed=15.0)  
21:03  
probe at 70.000,90.000 is z=1.327500  
21:03  
probe at 70.000,90.000 is z=1.326250  
21:03  
probe at 70.000,90.000 is z=1.325000  
21:03  
probe at 70.000,90.000 is z=1.325000  
21:03  
probe at 70.000,90.000 is z=1.326250  
21:03  
probe at 70.000,90.000 is z=1.326250  
21:03  
probe at 70.000,90.000 is z=1.326250  
21:03  
probe at 70.000,90.000 is z=1.325000  
21:03  
probe at 70.000,90.000 is z=1.325000  
21:03  
probe at 70.000,90.000 is z=1.325000  
21:03  
probe accuracy results: maximum 1.327500, minimum 1.325000, range 0.002500, average 1.325750, median 1.325625, standard deviation 0.000829  
21:03  
G91  
G1 Y+10 F6000  
G90  
21:03  
PROBE\_ACCURACY  
21:03  
PROBE\_ACCURACY at X:70.000 Y:100.000 Z:2.025 (samples=10 retract=0.700 speed=15.0 lift\_speed=15.0)  
21:03  
probe at 70.000,100.000 is z=1.346250  
21:03  
probe at 70.000,100.000 is z=1.341250  
21:03  
probe at 70.000,100.000 is z=1.341250  
21:03  
probe at 70.000,100.000 is z=1.340000  
21:03  
probe at 70.000,100.000 is z=1.340000  
21:03  
probe at 70.000,100.000 is z=1.340000  
21:03  
probe at 70.000,100.000 is z=1.338750  
21:03  
probe at 70.000,100.000 is z=1.338750  
21:03  
probe at 70.000,100.000 is z=1.338750  
21:03  
probe at 70.000,100.000 is z=1.338750  
21:03  
probe accuracy results: maximum 1.346250, minimum 1.338750, range 0.007500, average 1.340375, median 1.340000, standard deviation 0.002169  
21:03  
G28  
21:03  
echo: Homing Z
