Hi all! I’ve been scratching my head for a while now trying to get this figured out. I’ve got Klipper installed on my Elegoo Neptune 3 Pro, and I’ve never had perfect bed meshes. The back left is still too close, the back right is still too far.
The images show the difference between the corners (My Z-Offset was too close on this run so it’s squishing too much all over, but the difference is still visible).
I recently installed kyleisah’s Adaptive Meshing & Purging in hopes of this being a better solution, and I’ve put my tension up to 0.5, but have gotten marginal improvements. I’ve also attached my printer.cfg. The Bed Mesh values at the bottom can be ignored, since the adaptive meshing gets a new mesh every print.
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Range is 0.7. Not great but not as horrible as it looks in the display.
I’m not familiar with the Neptune and how, if at all, you adjust the bed screws but getting that range nearish to your layer size should do wonders.
Is this the one that doesn’t have adjustable bed springs? I had a bed that wouldn’t level on the neptune pro with no adjustable springs and software couldn’t compensate outside of small prints.
I had to take the bed apart partially and use little shims (in my case tinfoil) to even the bed to the point where mesh leveling could handle the remaining flaws.
Yeah, no bed screws on this one. I’ll need to upgrade this bed at some point, that’s for sure. The foil is a good idea, I could put it under the PEI sheet in the front right to bring it up the smallest amount. I’d be able to bring my z-offset up a bit and have a semi-consistent first layer that way
I put the foil in larger squares to fit under the silver metal tubes used as offsets for the heated bed. I’m not sure if foil under the pei will work, my worry would be making the bed uneven vs just adjusting the position. I just remember getting under the silver tube things was a massive pain in the ass so I do hope the pei sheet idea works tho lol
So far foil seems to be smoothing things out. Not great, it will take some fiddling with, but it’s working!
I know this is a couple days old, but I have a heavily modified Neptune 3 (non pro) and it needed the bed springs that replaced the plastic spacers. It was very uneven within a month or two of owning it and was constantly shifting.
Bought a pack of springs for maybe 10 bucks on Amazon and, while not as permanent as solid metal spacers and maybe loctite, it lasts much longer than the plastic spacers between needing a relevel, and being able to fine tune it with a screwdriver is a must.
