Manual Grid Mesh Levelling
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I am having an issue with my Z pobe for auto leveling. so I want to generate a Mesh Grid Manually with just feeling paper tension on a 4x4 grid on my bed.
Is there any function to make this easy to do that will go to each probe point and I can just babystep up or down as needed. and then it will record the point into the hightmap.csv file.
Similar to how the Marlin function available.
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Hi,
Please post your config.g file and your homing files using the </> tag.
I'd rather get your z probe working but you can do what you ask by changing your M558 command.
From the docs regarding the P parameter:
P0 indicates that no Z probe is present. Whenever Z probing is commanded, you will be prompted to jog the Z axis until the nozzle is just touching the bed and then signal completion.
Frederick
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@Adamfilip said in Manual Grid Mesh Levelling:
I am having an issue with my Z pobe for auto leveling. s
what issue do you have?
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using 3x Piezo sensors under my bed. and its less sensitive towards the back of the bed, and often doesnt pickup probe points on all areas..
but really I'm hoping to get manual mesh setup figured out
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@Adamfilip said in Manual Grid Mesh Levelling:
using 3x Piezo sensors under my bed. and its less sensitive towards the back of the bed, and often doesnt pickup probe points on all areas..
but really I'm hoping to get manual mesh setup figured out
Getting those to work an be a pain - I guess you have a delta?
In any case read my other post which tells you about what you want to do.
Frederick
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No delta, I have a Fixed Bed CoreXY machine
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@Adamfilip said in Manual Grid Mesh Levelling:
No delta, I have a Fixed Bed CoreXY machine
And you are trying to use sensors under the bed? Curious.
Have you considered using a add-on z probe that connects to the extruder assembly?
Those are going to be much easier to get working well - particularly when probing a grid.
Frederick
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Yes I have previously had BLtouch that got ripped off from a loose print.. then replaced it and it it died from a head crash, I had a Duet IR Sensor, same fate. so I tried Piezo and it worked for a while but isn't reliable.
https://www.youtube.com/watch?v=JniUZn85Sb8
So now I'm going back to just a optical homing switch, and manual mesh levelling
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@Adamfilip said in Manual Grid Mesh Levelling:
using 3x Piezo sensors under my bed. and its less sensitive towards the back of the bed, and often doesnt pickup probe points on all areas..
that sounds like its not working well
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@Veti exactly why im going back to a simple setup with manual mesh levelling
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Probe type P0 will work in a pinch.
Even stall detection on Z may work for you if you meet a few requirements.
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@Adamfilip said in Manual Grid Mesh Levelling:
Yes I have previously had BLtouch that got ripped off from a loose print.. then replaced it and it it died from a head crash, I had a Duet IR Sensor, same fate. so I tried Piezo and it worked for a while but isn't reliable.
Wow. That is a one streak of bad luck.
How about an inductive sensor - they are quite sturdy - and if you don't use a bed with any sort of magnets they work very well.
Frederick
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I am using Spring Steel spring bed with magnets underneath
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@Adamfilip said in Manual Grid Mesh Levelling:
I am using Spring Steel spring bed with magnets underneath
Yeah - so am I - really like it but it means no more inductive sensor - back to the noisy BLTouch.
Frederick
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I didnt realize the magnets interfered with inductive sensors, how does prusa get away with it?
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@Adamfilip said in Manual Grid Mesh Levelling:
I didnt realize the magnets interfered with inductive sensors, how does prusa get away with it?
Perhaps they arrange the probe points to be away from the magnets?
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@dc42 said in Manual Grid Mesh Levelling:
Perhaps they arrange the probe points to be away from the magnets?
Precisely this.
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So going back to my original ask.
to setup Grid Mesh leveling Manually. is there an easy way to do this?
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@Adamfilip said in Manual Grid Mesh Levelling:
So going back to my original ask.
to setup Grid Mesh leveling Manually. is there an easy way to do this?
Easy? That depends on what you consider easy.
My first reply to you covered how to set the Z probe configuration to allow bed probing when there is no Z probe.
Frederick
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Setting m558 P0 and then using g29 as normal will ask you to manually jog the nozzle to touch the bed at each point.
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@Adamfilip said in Manual Grid Mesh Levelling:
It works - I used to do it before I went ahead and installed a Z probe.
Have you considered a removable Z probe - then it cannot get damaged during normal operations.
Frederick
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this one is very cheap and works well on my delta
https://de.aliexpress.com/item/32838312776.html -
with this, look like you need to run the hotend, cold I assume.
an interesting idea -
@fcwilt havent really but definately something to consider
but so gar the G29 manual is working for me.Thank you for your help with this.
