I print a lot of Bambu ABS. The stock profile with a maxed out bed temp works really well for me. Heat up the camber before hand with the bed on max, at the top and the aux fan at 100%. The bed (PEI textured/high temp) needs to be really clean. If I start to have adhesion issues the bed gets washed with dish soap and hot water. I find parts stick really really well this way. On the largest parts I add a brim.
Those layer defects are a direct result of poor adhesion. The edges are curling up. Get your adheasion figured out and the issues that youâre seeing will go away.
You are printing at a lower than normal temperature for Bambu ABS. Did you lower your nozzle temp?
That wall surface isnât normal. Over extrusion can cause this. What percentage of infill and how many walls are you printing? Have you calibrated the filament?
I have higher values cause this is ABS and its taking some punishment when in use. Even with these higher wall and infill settings, with a moderate amount of force it snaps across the horizontal direction. Still stronger then PLA though.
Think the higher wall count or infill is hurting here? @JonRaymond
Adjusting the X & Y belt and then adjusting the Z belt seemed to help, but then after one print everything seems to be worse off and mis-aligned even more nowâŚ
Not to sure what the issue at this point. I feel as though the torsion spring for the Z axis seems to be a little week as well.
If you havenât performed a good cleaning of your running gear maybe itâs time for a good cleaning.
I always take out the build plate before starting because your going to splash IPA everywhere. Clean the carbon rods till no more black comes off. Make sure you clean the lidar lense also.
If your printing ABS/ASA you want to keep your printer as clean as possible. At least once a month.
And then do a full calibration after all of that cleaning.
As @Barryg41 mentioned, stay on top of the cleaning. ABS\ASA are notorious for shitting barely visible residue everywhere.
Clean carbon rods, and Y-axis rods, lube them, and re-tension XY gantry.
Also, you have to keep the chamber very hot, at least 50C in the chamber, and keep 100C for the build plate (for textured PEI). P1 and X1 donât have any insulation in them, so they are quite bad at heat retention and protection against drafts, despite being âenclosedâ printers.
If you havenât performed a good cleaning of your running gear maybe itâs time for a good cleaning.
Did this while performing the other maintenance.
lube them
Need to due this but donât have any of what ever lube is needed. Thoughts? I doubt just lube is the issue but will do this once I find out what lube is needed.
chamber heat
I made some posts on a few other threads about chamber heat, I have been working on a heater and some insulation to help get me to 60 C from 45 C. 60 C would be the absolute highest anyone would be able to go I would imagine.
Recently discovered that if I want to get a perfect ABS print, then Iâll take the hit on time and stick it in silent mode!!! Stock profile with no part cooling and 100 degree bed. On P1S
Someone on YouTube did some experiments with seams âalignedâ and seams ârandomâ,
his conclusion was that when using âalignedâ the start/end point was made in the corner, and makes it a weak point for warping, warping was less with random seams.
That may be the case but random seems make parts look like garbage unless you are using fuzzy skin. I print a lot of abs and find the best thing to avoid warping is to make sure the chamber temp is warmed up before I start the print.