Good day to you,
I would like to ask your help. I read all related posts and the ones I could found by google search. I was able to apply almost all useful suggestions and thanks to that, using Bambu lab PA6-GF I was able to get from a completely useless print result to an almost perfect one.
In details, I am:
- using glue on build plate,
- lowered speed to ~ 60
- layer height 0.12
- initial layer height 0.2
- wall loops 6
- internal solid infill rectilinear pattern
- sparse infill density: 90%
- sparse infill adaptive cubic pattern
- ironing top surfaces with rectilinear pattern
- precise wall enabled
- precise Z height enabled
- support on built plate and critical regions only with remove small overhangs
- raft layers 5
- raft contact Z distance 0.1
- support raft base Bambu lab PA6-GF (same as object)
- support raft interface Bambu lab PA Support material
- interface rectilinear pattern
- support top z distance 0.3
- support object xy distance 0.3
- skirt loops 1
- no brim
- nozzle temp 270 Celsius constant
- build plate 110 Celsius (textured PEI) constant
- chamber temp 65 Celsius constant
- no cooling for the first 5 layers
- drying 12+ hours at 70 Celsius constant while rotating
- cooling down after printing, gradually
Thanks to this:
- i have super great surface quality
- perfect layer adhesion
- perfect bed adhesion
- easy support/raft removal
BUT with larger/longer models (smaller ones are perfect):I have 1.5-2mm warping at the 2 edges. Important, that the bed adhesion is perfect, so warping occurs by lifting up the edges of the magnetic plate from the bed.
I also tried different layer heights, but the change was only to sacrifice the quality, while warping still occurred.
I ran out of ideas what more I could do, except 1 crazy thing I read somewhere: printing the model lifted to 45% angle having support only at the small portion touching the bed. But I am very skeptical bout this, as warping would occur anyway in my understanding, so why would that help and having this angle would cause (again just assumption) surface issue as well as no ironing would be possible I guess.
May I ask if you could help me with any concrete idea I could try as you had success with it ?
Many thanks in advance for your time and help!