Compensate for Z-Offset Inconsistencies?
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Despite using mechanical bed auto leveling (with two independent Z steppers) and mesh bed leveling, I find the right side of my bed is "closer" to the nozzle than the left side as I print.
After some investigation, I have found my z-offset to my probe is about .2-.3 mm less on the right side than the left side. I'm not sure why - I use a dual linear rail system so there is little to no "jog" in the head, but it's clearly happening as I believe the data.
A thought occurred to me though - is there a way (or could there be a way) to take a series of known z-offset values and apply those to the mesh grid to compensate for z-offset inconsistencies? While such a process would take manual guidance at initial setup, it feel like it would take auto bed leveling to the next level as it would help with printers that are not 100% consistent in their build (much like how auto bed leveling itself helps with printers not 100% consistent in their build surface).
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can you post a picture of your mesh bed level result?
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It sounds like you're describing effector tilt.
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@phaedrux Maybe! I’m going to check it out!
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that is for delta printers.
you might have a tilt as well but that wont work on Cartesian printers. -
@veti said in Compensate for Z-Offset Inconsistencies?:
that is for delta printers.
you might have a tilt as well but that wont work on Cartesian printers.I was wondering about that as I was reading about it just now. I wonder why the equivalent isn't available for cartesian printers?
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@veti Here you go,
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You can see this offset difference clearer in this photo. On the left side the line of the ring is very narrow, and on the right it's smooshed down into the glass. 0,0 is the upper right BTW.
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What kind of probe are you using?
On a side note, I personally went from dual steppers to just 2 leadscrews off one belt and have been really happy with the result. IMO, independent steppers are only worth it if you have 3 of them and can have a rigid bed mount.
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@mike BLTouch
I have it do a tilt level before each print just to be safe.
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I have a similar problem with one of my Ormerods and hadn't considered nozzle axis to bed normal alignment or more the the point variation.
Thanks! I will focus on my custom with a v-slot x-arm from now on and 'fix' the sloppy x-carriage another time.
