Mesh bed leveling problem
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@fcwilt said in Mesh bed leveling problem:
And, just out of curiosity, why are you doing two G30s in your homing code? Two speed probing is already a feature of the firmware.
Yes, but only recently. This was the common way to do it before now.
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@fcwilt Hello two speeds are where in firmware please?
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@phaedrux Any simple gcode for leveling? I edit G28 gcode too.
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@petr-k said in Mesh bed leveling problem:
@fcwilt Hello two speeds are where in firmware please?
From the docs:
From RRF 3.3 you can provide two F parameters instead of one, where the second is lower than the first, for example F1000:500. When doing a plain G30 command, an additional probe will be done using the first speed to establish the approximate bed position, before one or more additional probes are done using the second speed. The first speed will not be used when probing at a defined point or when mesh bed probing.
Frederick
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@fcwilt In M558 doesn't work
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@petr-k said in Mesh bed leveling problem:
@fcwilt In M558 doesn't work
Could you elaborate a bit on that?
Frederick
Printers: A FT-5 with the 713 upgrade bits, a custom MarkForged style, a small Utilmaker style, a small CoreXY from kit and a E3D MS/TC setup. Various hotends. Using Duets (2 and 3) running 3.4.6
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@petr-k said in Mesh bed leveling problem:
@phaedrux Any simple gcode for leveling? I edit G28 gcode too.
Do you mean to level the bed, or to create the mesh for the surface?
Maybe this helps to explain
https://duet3d.dozuki.com/Wiki/Using_the_manual_bed_levelling_assistant -
@fcwilt G32 works fine, but G29 has problem, so mesh.g
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@phaedrux Level the bed, I mean G29 settings
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That looks pretty good. Are you still getting the error about the offset?
Have you done a test print with it active to see if it's working as expected? -
@phaedrux Looks good, but what about the four points in corners? I started printing yesterday and first layer looks good. Object was in the center of bed and has diameter 150 mm.
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@petr-k said in Mesh bed leveling problem:
@phaedrux Looks good, but what about the four points in corners? I started printing yesterday and first layer looks good. Object was in the center of bed and has diameter 150 mm.
A 5 by 5 mesh grid can give a false impression of the bed surface.
I use a 20 by 20 mesh grid.
Perhaps create a new height map using more points.
Frederick
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Thanks guys, I fix it.
