New problem : Probe samples exceed tolerance. Retrying…

Sovol SV08
1

Been printing happy after replacing the parts that were damaged after the nozzle got pushed out until yesterday a new problem popped up.

Whenever the Z calibration or gantry leveling is started the printer start measuring all four corners like it should, but I see a lot of retries and eventually an error in the log of the printer.
I’ve checked belt tension with the gates app and adjusted where needed but sadly that wasn’t the solution.

Can the bed be warped of the motor driver be an issue ? Z-sensor maybe ?

1 Like
2

08:44
Too many retries
08:44
Too many retries
08:44
Too many retries
08:44
Retries: 5/5 Probed points range: 0.733125 tolerance: 0.050000
08:44
Making the following Z adjustments:
stepper_z = 0.373546
stepper_z1 = -0.779530
stepper_z2 = 0.839961
stepper_z3 = -0.433977
08:44
Average: 8.045772
08:44
Actuator Positions:
z: 7.672226 z1: 8.825302 z2: 7.205810 z3: 8.479748
08:44
Gantry-relative probe points:
0: 7.859944 1: 8.397132 2: 7.664007 3: 8.280882
08:44
probe at 346.000,10.000 is z=1.713493
08:44
probe at 346.000,10.000 is z=1.724743
08:44
probe at 346.000,320.000 is z=2.332243
08:44
probe at 346.000,320.000 is z=2.339743
08:44
Probe samples exceed tolerance. Retrying…
08:44
probe at 346.000,320.000 is z=2.347243
08:44
probe at 346.000,320.000 is z=2.364118
08:44
Probe samples exceed tolerance. Retrying…
08:44
probe at 346.000,320.000 is z=2.373493
08:44
probe at 346.000,320.000 is z=2.399743
08:44
probe at 36.000,320.000 is z=1.599118
08:44
probe at 36.000,320.000 is z=1.606618
08:44
probe at 36.000,10.000 is z=2.137243
08:44
probe at 36.000,10.000 is z=2.142868
08:44
Probe samples exceed tolerance. Retrying…
08:44
probe at 36.000,10.000 is z=2.140993
08:44
probe at 36.000,10.000 is z=2.157868
08:44
Retries: 4/5 Probed points range: 0.337500 tolerance: 0.050000
08:44
Making the following Z adjustments:
stepper_z = 0.086308
stepper_z1 = 0.156655
stepper_z2 = -0.411618
stepper_z3 = 0.168655
08:44
Average: 7.876057
08:44
Actuator Positions:
z: 7.789750 z1: 7.719402 z2: 8.287676 z3: 7.707402
08:44
Gantry-relative probe points:
0: 7.778630 1: 7.806755 2: 8.091755 3: 7.754255
08:44
probe at 346.000,10.000 is z=2.245745
08:44
probe at 346.000,10.000 is z=2.245745
08:44
Probe samples exceed tolerance. Retrying…
08:44
probe at 346.000,10.000 is z=2.255120
08:44
probe at 346.000,10.000 is z=2.273870
08:44
probe at 346.000,320.000 is z=1.906370
08:44
probe at 346.000,320.000 is z=1.910120
08:44
Probe samples exceed tolerance. Retrying…
08:44
probe at 346.000,320.000 is z=1.919495
08:44
probe at 346.000,320.000 is z=1.941995
08:44
probe at 36.000,320.000 is z=2.189495
08:44
probe at 36.000,320.000 is z=2.196995
08:44
Probe samples exceed tolerance. Retrying…
08:44
probe at 36.000,320.000 is z=2.204495
08:44
probe at 36.000,320.000 is z=2.223245
08:43
probe at 36.000,10.000 is z=2.213870
08:43
probe at 36.000,10.000 is z=2.228870
08:43
Retries: 3/5 Probed points range: 0.600938 tolerance: 0.050000
08:43
Making the following Z adjustments:
stepper_z = -0.055210
stepper_z1 = -0.200729
stepper_z2 = 0.646683
stepper_z3 = -0.390745
08:43
Average: 7.987283
08:43
Actuator Positions:
z: 8.042492 z1: 8.188012 z2: 7.340600 z3: 8.378028
08:43
Gantry-relative probe points:
0: 8.095171 1: 8.056734 2: 7.661109 3: 8.262046
08:43
probe at 346.000,10.000 is z=1.733266
08:43
probe at 346.000,10.000 is z=1.742641
08:43
Probe samples exceed tolerance. Retrying…
08:43
probe at 346.000,10.000 is z=1.744516
08:43
probe at 346.000,10.000 is z=1.783891
08:43
Probe samples exceed tolerance. Retrying…
08:43
probe at 346.000,10.000 is z=1.847641
08:43
probe at 346.000,10.000 is z=1.888891
08:43
probe at 346.000,320.000 is z=2.340766
08:43
probe at 346.000,320.000 is z=2.337016
08:43
Probe samples exceed tolerance. Retrying…
08:43
probe at 346.000,320.000 is z=2.352016
08:43
probe at 346.000,320.000 is z=2.378266
08:43
probe at 36.000,320.000 is z=1.935766
08:43
probe at 36.000,320.000 is z=1.950766
08:43
probe at 36.000,10.000 is z=1.903891
08:43
probe at 36.000,10.000 is z=1.905766
08:43
Retries: 2/5 Probed points range: 1.674375 tolerance: 0.050000
08:43
Making the following Z adjustments:
stepper_z = -1.222641
stepper_z1 = 0.634171
stepper_z2 = -1.043689
stepper_z3 = 1.632159
08:43
Average: 7.556669
08:43
Actuator Positions:
z: 8.779310 z1: 6.922498 z2: 8.600358 z3: 5.924509
08:43
Gantry-relative probe points:
0: 8.223069 1: 7.433694 2: 7.914632 3: 6.548694
08:43
probe at 346.000,10.000 is z=3.447556
08:43
probe at 346.000,10.000 is z=3.455056
08:43
Probe samples exceed tolerance. Retrying…
08:43
probe at 346.000,10.000 is z=3.468181
08:43
probe at 346.000,10.000 is z=3.494431
08:43
probe at 346.000,320.000 is z=2.078806
08:43
probe at 346.000,320.000 is z=2.091931
08:43
probe at 36.000,320.000 is z=2.564431
08:43
probe at 36.000,320.000 is z=2.568181
08:43
Probe samples exceed tolerance. Retrying…
08:43
probe at 36.000,320.000 is z=2.586931
08:43
probe at 36.000,320.000 is z=2.607556
08:43
probe at 36.000,10.000 is z=1.773181
08:43
probe at 36.000,10.000 is z=1.780681
08:43
Probe samples exceed tolerance. Retrying…
08:43
probe at 36.000,10.000 is z=1.791931
08:43
probe at 36.000,10.000 is z=1.816306
08:43
Retries: 1/5 Probed points range: 1.746563 tolerance: 0.050000
08:43
Making the following Z adjustments:
stepper_z = 1.502230
stepper_z1 = -0.418365
stepper_z2 = 0.315566
stepper_z3 = -1.399431
08:43
Average: 8.005648
08:43
Actuator Positions:
z: 6.503418 z1: 8.424013 z2: 7.690081 z3: 9.405078
08:43
Gantry-relative probe points:
0: 7.082505 1: 8.026567 2: 8.044380 3: 8.829067
08:43
probe at 346.000,10.000 is z=1.169995
08:43
probe at 346.000,10.000 is z=1.171870
08:43
probe at 346.000,320.000 is z=1.951870
08:43
probe at 346.000,320.000 is z=1.959370
08:43
Probe samples exceed tolerance. Retrying…
08:43
probe at 346.000,320.000 is z=1.961245
08:43
probe at 346.000,320.000 is z=1.979995
08:43
Probe samples exceed tolerance. Retrying…
08:43
probe at 346.000,320.000 is z=1.991245
08:43
probe at 346.000,320.000 is z=2.009995
08:42
probe at 36.000,320.000 is z=1.970620
08:42
probe at 36.000,320.000 is z=1.976245
08:42
probe at 36.000,10.000 is z=2.911870
08:42
probe at 36.000,10.000 is z=2.923120
08:42
Retries: 0/5 Probed points range: 0.694688 tolerance: 0.050000
08:42
Making the following Z adjustments:
stepper_z = -0.115675
stepper_z1 = 0.370261
stepper_z2 = 0.333534
stepper_z3 = -0.588120
08:42
Average: 8.105301
08:42
Actuator Positions:
z: 8.220976 z1: 7.735041 z2: 7.771767 z3: 8.693421
08:42
Gantry-relative probe points:
0: 8.261375 1: 7.858250 2: 7.942625 3: 8.552938
08:42
probe at 346.000,10.000 is z=1.442375
08:42
probe at 346.000,10.000 is z=1.451750
08:42
Probe samples exceed tolerance. Retrying…
08:42
probe at 346.000,10.000 is z=1.449875
08:42
probe at 346.000,10.000 is z=1.519250
08:42
probe at 346.000,320.000 is z=2.053625
08:42
probe at 346.000,320.000 is z=2.061125
08:42
Probe samples exceed tolerance. Retrying…
08:42
probe at 346.000,320.000 is z=2.057375
08:42
probe at 346.000,320.000 is z=2.074250
08:42
Probe samples exceed tolerance. Retrying…
08:42
probe at 346.000,320.000 is z=2.081750
08:42
probe at 346.000,320.000 is z=2.106125
08:42
probe at 36.000,320.000 is z=2.138000
08:42
probe at 36.000,320.000 is z=2.145500
08:42
probe at 36.000,10.000 is z=1.736750
08:42
probe at 36.000,10.000 is z=1.740500
08:42
Probe samples exceed tolerance. Retrying…
08:42
probe at 36.000,10.000 is z=1.748000
08:42
probe at 36.000,10.000 is z=1.764875
08:41
Bed heating…
08:41
The bed target temperature was not reached!
08:41
Check Heating!

3

You may have to pre heat the bed before running the bed leveling. If that fail rerun it just after, that should works. If that continues to fail, contact the sovol support.
If you fixed it but that continues to fail too frequently, there are more advanced parameters… But firstly make it works with regular features to exclude any mechanical damages

4

Last week I did some more diagnostics and I printed an M12 probe holder to try that.
When switching the probe I noticed the sovol probe made a rattling noise. I opened it up and found that the ferrite core around the spools has snapped in half. This is probably caused by the nozzle crash I had earlier.

IMG_20241011_090037
IMG_20241011_0900371920×2560 244 KB

This explains the varying reading as the resonance of the coil was changing with the loose piece of ferrite moving around in the casing.

With the M12 probe the problem disappeared.
I got in contact with sovol and they will send me a replacement.