Prints super slow no matter what I adjust
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@Blaidd said in Prints super slow no matter what I adjust:
Cura
check your settings in cura, sometimes it has g-code for changing the speed etc in mm/sec. (or look in the sliced file if thats easier)
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That was the first thing I checked, and everything looks right. It was based on one of the Chep Ender 3 profiles and modified as I did my tests. It's not letting me upload my Cura profile so here it is in text form.
[general] version = 4 name = Custom 0.2 definition = creality_base [metadata] intent_category = default quality_type = standard type = quality_changes position = 0 setting_version = 15 [values] clean_between_layers = True coasting_enable = False cool_fan_speed = =100.0 if cool_fan_enabled else 0.0 fill_outline_gaps = True infill_line_distance = =0 if infill_sparse_density == 0 else (infill_line_width * 100) / infill_sparse_density * (2 if infill_pattern == 'grid' else (3 if infill_pattern == 'triangles' or infill_pattern == 'trihexagon' or infill_pattern == 'cubic' or infill_pattern == 'cubicsubdiv' else (2 if infill_pattern == 'tetrahedral' or infill_pattern == 'quarter_cubic' else (1 if infill_pattern == 'cross' or infill_pattern == 'cross_3d' else 1)))) infill_pattern = ='lines' if infill_sparse_density > 50 else 'cubic' infill_sparse_density = 15 material_flow = 93.5 material_flow_layer_0 = 95 material_print_temperature = 185 retract_at_layer_change = True retraction_amount = 1.5 retraction_extrusion_window = 2 retraction_speed = 40 roofing_layer_count = 1 skirt_brim_speed = =speed_layer_0 speed_equalize_flow_enabled = True speed_layer_0 = 25.0 speed_travel_layer_0 = =100 if speed_layer_0 < 20 else 150 if speed_layer_0 > 30 else speed_layer_0 * 5 speed_wall_x = =speed_wall support_brim_enable = False top_bottom_thickness = 1.4 travel_compensate_overlapping_walls_0_enabled = True wall_0_material_flow = =wall_material_flow wall_0_wipe_dist = 0.4 wall_line_width = =line_width wall_thickness = 1.2 wipe_retraction_enable = False z_seam_corner = z_seam_corner_inner z_seam_type = sharpest_cornerOh, and I suppose I should mention, it's white "3D Best-Q" brand PLA (found it on Amazon), although that shouldn't affect not being able to go up to the requested speed. It was printing decently before I started tweaking it.
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I'm not familiar with cura since I don't use it, but on kisslicer there is a parameter named Maximum Extruder Flow, which is intended to limit the printer speed to whatever plastic volume the extruder is capable of pushing in order to avoid under extrusion.
I'd look for a similar parameter in cura and try to adjust it.
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@Blaidd said in Prints super slow no matter what I adjust:
and everything looks right.
start g-code? thats usaully where some profiles have settings to control speed/accl/jerk
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I never touched the start and end g-code, but here they are anyway just in case:
Start G-Code:
G92 E0 ; Reset Extruder G28 ; Home all axes G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed G1 X1.0 Y20 Z0.3 F5000.0 ; Move to start position G1 X1.0 Y200.0 Z0.3 F1500.0 E15 ; Draw the first line G1 X1.4 Y200.0 Z0.3 F5000.0 ; Move to side a little G1 X1.4 Y20 Z0.3 F1500.0 E30 ; Draw the second line G92 E0 ; Reset Extruder G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed G1 X5 Y20 Z0.3 F5000.0 ; Move over to prevent blob squishEnd G-Code:
G91 ;Relative positioning G1 E-2 F2700 ;Retract G1 E-2 Z0.2 F2400 ;Retract and raise Z G1 X5 Y5 F3000 ;Wipe out G1 Z5 ;Raise Z more G90 ;Absolute positionning G1 X0 Y225 ;Present print M106 S0 ;Turn-off fan M104 S0 ;Turn-off hotend M140 S0 ;Turn-off bed M84 X Y E ; Turn off X, Y, and Extruder motors -
do you have speed and acceleration control enabled in the cura profile?
that could be another source
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@Veti No, I set them in the config.g file and turned them off in the slicer.
Correction, I have "speed" set at 25 for first layer and 50 for all other layers. I have acceleration and jerk (instantaneous speed change) set in config.g file and turned off in the slicer.
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open the generated g code and look for M201 M203 or M204.
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@Veti There aren't any in the code.
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@Blaidd said in Prints super slow no matter what I adjust:
M92 X160.00 Y160.00 Z800.00 E93.75 ; set steps per mm
did you buy 0.9 steppers? otherwise you are off by 2 here
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@Veti Yes, sorry. I forgot to mention that. I was upgrading the stepper motors (something got spilled on 2 of them and to be safe I just replaced them all) and accidentally bought 0.9 instead of 1.8, then decided to just go with it instead of trying to deal with the hassle of returning them. It was working fine, until suddenly everything slowed down to a crawl.
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post the beginning of your g code file with the first couple of print moves
also try prusaslicer to test
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@Veti said in Prints super slow no matter what I adjust:
post the beginning of your g code file with the first couple of print moves
;TIME:2425 ;Filament used: 1.41972m ;Layer height: 0.2 ;MINX:96.5 ;MINY:96.5 ;MINZ:0.2 ;MAXX:138.5 ;MAXY:138.5 ;MAXZ:20 ;Generated with Cura_SteamEngine mb-master-20200822 T0 M190 S60 M104 S185 M109 S185 M82 ;absolute extrusion mode ; Ender 3 Custom Start G-code G92 E0 ; Reset Extruder G28 ; Home all axes G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed G1 X1.0 Y20 Z0.3 F5000.0 ; Move to start position G1 X1.0 Y200.0 Z0.3 F1500.0 E15 ; Draw the first line G1 X1.4 Y200.0 Z0.3 F5000.0 ; Move to side a little G1 X1.4 Y20 Z0.3 F1500.0 E30 ; Draw the second line G92 E0 ; Reset Extruder G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed G1 X5 Y20 Z0.3 F5000.0 ; Move over to prevent blob squish M83 ;relative extrusion mode G1 F2400 E-1.5 ;LAYER_COUNT:100 ;LAYER:0 M107 G0 F7500 X99.698 Y99.764 Z0.2 ;TYPE:SKIRT G1 F2400 E1.5 G1 F1500 X100.386 Y99.127 E0.0277 G1 X101.126 Y98.551 E0.0277 G1 X101.912 Y98.039 E0.02771And then after the skirt finishes, here's the beginning of the first layer:
;MESH:20mm_calibration_cube.stl G0 F7500 X126.5 Y126.5 ;TYPE:WALL-INNER G1 F2400 E1.5 G1 F1500 X108.5 Y126.5 E0.53178 G1 X108.5 Y108.5 E0.53178@Veti said in Prints super slow no matter what I adjust:
also try prusaslicer to test
It just so happens that I have PrusaSlicer, I just stopped using it because the Chep-Cura setup was (usually) working better, but I did not set up the settings I recently got from all the tests I ran. That said, it did appear to run full speed (only did first 2 layers to test).
ETA: Okay, now I'm even more confused. Just out of curiosity, I resliced the test cube without making any changes to my Cura settings and ran it... and it's running perfectly. So at this point the only thing I can think of is maybe a corrupt download of the file, somehow? Or maybe a random setting from all the testing got left in memory, and it finally dropped out?
ETA2: False alarm. I accidentally uploaded the same file a second time, instead of the new one. It's still not going above 10mm/s with the Cura file.
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did you change cura to reprap flavour?
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@Veti That was one of the first things I did when I installed the Duet, and it worked for over a year. I did not change it recently.
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Well, we've established the problem is not with the Duet (or, more accurately, the settings I adjusted on my Duet). So I'll just delete my Cura custom profile and start over with the Chep profile that I know functions properly. I'll have to spend a few hours calibrating stuff all over again, but half the stuff (the ones I saved in Duet config.g) is already done.
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Did you happen to have a really high minimum layer time set?
Your X Y jerk is set a bit low. M566 X360.00 Y360.00
