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.
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!