Bed Mesh Issues for 500mm V-core
@beany As mentioned before the head is nearly colliding with the bed and I'm unsure what the issue may be. The mesh is indeed correct from what I've seen with the larger prints, so I'm thinking this could be mechanical or software related.
49 Replies
quickest-silver•2y ago
ok a couple of starting things to check, first turn on "Scale gradient" then we can see the range of the mesh
Is this the mesh made by the START_PRINT macro? or are you manually meshing?
dependent-tan•2y ago
dependent-tan•2y ago
Manually meshing.
I can also see the mesh in the printer.cfg file
dependent-tan•2y ago
quickest-silver•2y ago
have you changed this to False?
variable_calibrate_bed_mesh: True
dependent-tan•2y ago
yes
quickest-silver•2y ago
For shits and giggles, set it back to True and try a print. Then while it's printing watch this box, the Z value should change as the toolhead moves across the plate. Both these steps will confirm that the correct mesh is being loaded and that it's being used by Klipper to change the Z in motion
dependent-tan•2y ago
Cool I'll try that. Before redoing the full bed mesh though, wouldn't it also show up while running the currently loaded mesh?
quickest-silver•2y ago
yes, I'm trying to kill two birds with one stone, in case it's loading the incorrect mesh, the values will change but the mesh is incorrect
also if it's actually hitting the bed, to stop it hitting the bed, you may want to change the Z offset so it's printing too high all over the bed - for now
dependent-tan•2y ago
Ah understood, I'll give it a try.
quickest-silver•2y ago
side note, it's strongly recommended to mesh before every print, to account for all the variables that can change between prints, from heat expansion to the build plate being put back in a slightly different position - that's why I recommend the PAM mod to people, because the main reason people turn off the pre-bed mesh is to save time, PAM does that by only meshing the area that the print will take place in 🙂 so you get both a mesh AND save time!
dependent-tan•2y ago
Full 15x15 mesh too?
quickest-silver•2y ago
yep for now
dependent-tan•2y ago
Ahhhh understood, do you have a reference for the PAM? That would be a total life saver
quickest-silver•2y ago
GitHub
GitHub - HelgeKeck/pam: PAM for RatOS
PAM for RatOS. Contribute to HelgeKeck/pam development by creating an account on GitHub.