under extrusion.
getting some under extrusion. this is the klipper PA tower. the under extrusion starts after a corner up to a point, (this point is the actual prefered PA 0.045) . then it starts underextruding after the corners. it seems to be okay at 0.045 but i dont think it should be under extruding before hand....
polymaker petg - 255c.
100mm/s 500mm/s2.
9mm3/s flow.
[extruder]
pressure_advance_smooth_time: 0.02
nozzle_diameter: 0.4 # Remember to change this if you change nozzle diameter.
dir_pin: !e_dir_pin # Remove ! in front of pin name to reverse extruder direction
#control: pid
#pid_kp: 28.413
#pid_ki: 1.334
#pid_kd: 151.300
max_temp: 350
sensor_type: PT1000
gear_ratio: 50:10 #for standard 10t motor
rotation_distance: 22.3388
[tmc2209 extruder]
interpolate: false
stealthchop_threshold: 999999
mellow libra mini with LDO-36STH17-0354AHG.
this under extrusion seems to be only PETG (no matter what brand. confused.) surely its not too wet.. i cant even hear bubbling and its in a heated filament holder.
1 Reply
using the stock sherpa mini config i get the same results.
blue arrows indicate direction of motion.
also its the same no matter what slicer. PS, orca, SS, cura.
at faster speeds the under extrusions stay for longer.
figured it out....
nozzle was probably clogged.
swapped my volc phaetus one to a v6 bondtech cht.
all problems disappeared.