[BUG]:

[Deadbot1]

Mesh data gets further and further off with each probing. Mesh data should be reset between probing.

Debug Log

Screenshots

Firmware and Version Marlin 2+bugfix

I had an issue where after doing a paper level and then running the probe to get a visualized mesh it would be wildly off. Like showing 2 corners off by 2+mm. I cleared all the mesh data in firmware then disabled mesh leveling in settings before running a new probe and it reported correctly. I have now added an M420 S0 right before the actual probing occurs in the settings page for Bed Visualizer in Octoprint. This makes sure that the mesh bed leveling is not occurring while probing. Seems to have corrected the issue.

[jneilliii]

which type of leveling are you using? I'd like to update the examples here.

[Deadbot1]

I have an Ender 5 Plus with the BL touch. I am running on a custom build of Marlin from Kersey Fabrications with an SKR 1.4 Turbo board from BTT.

On Sun, Dec 6, 2020 at 12:26 PM jneilliii notifications@github.com wrote:

which type of leveling are you using? I'd like to update the examples here https://github.com/jneilliii/OctoPrint-BedLevelVisualizer/blob/master/wiki/gcode-examples.md .

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[jneilliii]

Kersey Fabrications is a new one to me. Do you have a link to their source?

[Deadbot1]

https://github.com/KerseyFabrications Is his git hub. I actually just downloaded his precompiled from a video of his for setting up dual drivers on the z axis.

On Mon, Dec 7, 2020 at 2:03 AM jneilliii notifications@github.com wrote:

Kersey Fabrications is a new one to me. Do you have a link to their source?

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[jneilliii]

Yeah, so looking at this branch here based on what you've provided it appears it's using AUTO_BED_LEVELING_BILINEAR, but the branch is 4 months old compared to some of his other branches.

https://github.com/KerseyFabrications/Marlin/branches/all?page=1

[Deadbot1]

Yeah,it's a bit dated, but it works. I'm doing more testing to try and nail this thing down. So far what I see is that if I make sure to home z before running a probe I get clean data. If I run multiple probes in a row then it starts stacking results....

I ran a series of test runs and watched the output in terminal. I had the Nozzle at 210C and the Bed at 60C. Nozzle should not affect data that I can see. I homed out and then ran a couple of runs by just updating Bed Visualizer through Octoprint. Terminal output follows....

Send: G91Recv: okSend: G28 Z0[...]Recv: X:227.00 Y:195.00 Z:11.88 E:0.00 Count X:18160 Y:15600 Z:9504Recv: okSend: G90[...]Recv: okSend: M155 S100Recv: okSend: M420 S0Recv: echo:Bed Leveling OFFRecv: echo:Fade Height OFFRecv: okSend: G29 T[...]Recv: Bilinear Leveling Grid:Recv: 0 1 2 3 4Recv: 0 -0.005 +0.029 +0.034 +0.056 +0.092Recv: 1 +0.043 +0.059 +0.044 +0.070 +0.136Recv: 2 +0.035 +0.067 +0.058 +0.083 +0.149Recv: 3 +0.005 +0.026 +0.045 +0.056 +0.173Recv: 4 +0.001 +0.015 -0.007 +0.055 +0.124Recv: Recv: X:350.00 Y:320.00 Z:11.58 E:0.00 Count X:28000 Y:25600 Z:9504Recv: okSend: M155 S3Recv: ok[...]Send: M155 S100Recv: okSend: M420 S0Recv: echo:Bed Leveling OFFRecv: echo:Fade Height OFFRecv: X:350.00 Y:320.00 Z:11.73 E:0.00 Count X:28000 Y:25600 Z:9386Recv: okSend: G29 T[...]Recv: Bilinear Leveling Grid:Recv: 0 1 2 3 4Recv: 0 -0.145 -0.116 -0.107 -0.082 -0.044Recv: 1 -0.082 -0.101 -0.102 -0.073 -0.008Recv: 2 -0.091 -0.094 -0.107 -0.068 +0.014Recv: 3 -0.118 -0.095 -0.114 -0.096 +0.033Recv: 4 -0.139 -0.145 -0.163 -0.084 -0.038Recv: Recv: X:350.00 Y:320.00 Z:11.73 E:0.00 Count X:28000 Y:25600 Z:9504Recv: okSend: M155 S3Recv: ok[...]Send: M155 S100Recv: okSend: M420 S0Recv: echo:Bed Leveling OFFRecv: echo:Fade Height OFFRecv: X:350.00 Y:320.00 Z:11.68 E:0.00 Count X:28000 Y:25600 Z:9345Recv: okSend: G29 T[...]Recv: Bilinear Leveling Grid:Recv: 0 1 2 3 4Recv: 0 -0.348 -0.319 -0.295 -0.278 -0.238Recv: 1 -0.286 -0.280 -0.292 -0.274 -0.207Recv: 2 -0.305 -0.298 -0.293 -0.253 -0.189Recv: 3 -0.334 -0.320 -0.298 -0.272 -0.162Recv: 4 -0.342 -0.333 -0.358 -0.286 -0.226Recv: Recv: X:350.00 Y:320.00 Z:11.92 E:0.00 Count X:28000 Y:25600 Z:9504Recv: okSend: M155 S3Recv: ok[...]Send: M155 S100Recv: okSend: M420 S0Recv: echo:Bed Leveling OFFRecv: echo:Fade Height OFFRecv: X:350.00 Y:320.00 Z:11.71 E:0.00 Count X:28000 Y:25600 Z:9372Recv: okSend: G29 T[...]Recv: Bilinear Leveling Grid:Recv: 0 1 2 3 4Recv: 0 -0.505 -0.483 -0.453 -0.430 -0.398Recv: 1 -0.458 -0.447 -0.451 -0.432 -0.366Recv: 2 -0.446 -0.445 -0.454 -0.420 -0.345Recv: 3 -0.483 -0.457 -0.472 -0.454 -0.329Recv: 4 -0.509 -0.504 -0.520 -0.446 -0.383Recv: Recv: X:350.00 Y:320.00 Z:12.09 E:0.00 Count X:28000 Y:25600 Z:9504Recv: okSend: M155 S3Recv: ok[...]Send: M155 S100Recv: okSend: M420 S0Recv: echo:Bed Leveling OFFRecv: echo:Fade Height OFFRecv: X:350.00 Y:320.00 Z:11.72 E:0.00 Count X:28000 Y:25600 Z:9380Recv: okSend: G29 T[...]Recv: Bilinear Leveling Grid:Recv: 0 1 2 3 4Recv: 0 -0.662 -0.625 -0.604 -0.585 -0.554Recv: 1 -0.591 -0.612 -0.607 -0.575 -0.510Recv: 2 -0.606 -0.604 -0.613 -0.571 -0.493Recv: 3 -0.639 -0.644 -0.633 -0.605 -0.479Recv: 4 -0.666 -0.662 -0.668 -0.592 -0.545Recv: Recv: X:350.00 Y:320.00 Z:12.25 E:0.00 Count X:28000 Y:25600 Z:9504Recv: okSend: M155 S3Recv: ok

Then I homed and reprobed...

Send: G91Recv: okSend: G28 Z0[...]Recv: X:227.00 Y:195.00 Z:11.88 E:0.00 Count X:18160 Y:15600 Z:9504Recv: okSend: G90Recv: ok[...]Send: M155 S100Recv: okSend: M420 S0Recv: echo:Bed Leveling OFFRecv: echo:Fade Height OFFRecv: okSend: G29 T[...]Recv: Bilinear Leveling Grid:Recv: 0 1 2 3 4Recv: 0 -0.031 -0.004 +0.015 +0.022 +0.044Recv: 1 +0.026 +0.035 +0.008 +0.018 +0.068Recv: 2 +0.033 +0.043 +0.017 +0.026 +0.086Recv: 3 -0.012 +0.001 -0.017 +0.005 +0.115Recv: 4 -0.023 -0.034 -0.063 +0.000 +0.049Recv: Recv: X:350.00 Y:320.00 Z:10.58 E:0.00 Count X:28000 Y:25600 Z:9504Recv: okSend: M155 S3Recv: ok[...]

It seems that the mesh isn't getting clean data without a fresh homing of Z. I am altering my Bed Visualizer code as follows...

M155 S100 ; set temperature reporting delay, use a value longer than the time it takes for your leveling command to complete. G28; home all axis @BEDLEVELVISUALIZER ; instruct plugin to start recording responses from printer. G29 T ; report the bed leveling mesh points. M155 S3 ; set the temperature reporting delay back to a shorter time span.

On Mon, Dec 7, 2020 at 11:28 AM jneilliii notifications@github.com wrote:

Yeah, so looking at this branch here https://github.com/KerseyFabrications/Marlin/tree/2.0.6-BTT-SKR-V1.4-Turbo-Ender5Plus-DualZ based on what you've provided it appears it's using AUTO_BED_LEVELING_BILINEAR, but the branch is 4 months old compared to some of his other branches.

https://github.com/KerseyFabrications/Marlin/branches/all?page=1

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[github-actions[bot]]

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