distance28

Hey Guys, I have been having under extrusion issues and pinned down the issue to something I found in the GCode that cura compiles. The two GCodes below represent two different models loaded into cura, but with all of the same material and printer settings, the only difference is the file that was opened in cura. If you look at the first bit when it prints the prime tower, it has all the same x and y values, but the extrusion amounts for the second file (the one I need to print..) are almost a magnitude smaller than the one that prints normally. Any ideas as to what causes this or how to fix? The file I am trying to print did come from Netfabb if that has any effect. First File (prints normally) ;START_OF_HEADER ;HEADER_VERSION:0.1 ;FLAVOR:Griffin ;GENERATOR.NAME:Cura_SteamEngine ;GENERATOR.VERSION:3.6.0 ;GENERATOR.BUILD_DATE:2018-11-12 ;TARGET_MACHINE.NAME:Ultimaker 3 ;EXTRUDER_TRAIN.0.INITIAL_TEMPERATURE:215 ;EXTRUDER_TRAIN.0.MATERIAL.VOLUME_USED:5104 ;EXTRUDER_TRAIN.0.MATERIAL.GUID:532e8b3d-5fd4-4149-b936-53ada9bd6b85 ;EXTRUDER_TRAIN.0.NOZZLE.DIAMETER:0.4 ;EXTRUDER_TRAIN.0.NOZZLE.NAME:AA 0.4 ;EXTRUDER_TRAIN.1.INITIAL_TEMPERATURE:100 ;EXTRUDER_TRAIN.1.MATERIAL.VOLUME_USED:1339 ;EXTRUDER_TRAIN.1.MATERIAL.GUID:86a89ceb-4159-47f6-ab97-e9953803d70f ;EXTRUDER_TRAIN.1.NOZZLE.DIAMETER:0.4 ;EXTRUDER_TRAIN.1.NOZZLE.NAME:BB 0.4 ;BUILD_PLATE.TYPE:glass ;BUILD_PLATE.INITIAL_TEMPERATURE:60 ;PRINT.TIME:12198 ;PRINT.SIZE.MIN.X:9 ;PRINT.SIZE.MIN.Y:6 ;PRINT.SIZE.MIN.Z:0.27 ;PRINT.SIZE.MAX.X:213 ;PRINT.SIZE.MAX.Y:207 ;PRINT.SIZE.MAX.Z:4 ;END_OF_HEADER ;Generated with Cura_SteamEngine 3.6.0 T0 M82 ;absolute extrusion mode G92 E0 M109 S215 G0 F15000 X9 Y6 Z2 G280 G1 F1500 E-6.5 ;LAYER_COUNT:50 ;LAYER:0 M107 M204 S625 M205 X6 Y6 G0 F5000 X163.408 Y36.634 Z0.27 M204 S500 M205 X5 Y5 ;TYPE:SKIRT G1 F1500 E0 G1 F1200 X163.56 Y36.036 E0.01097 G1 X164.128 Y34.163 E0.04576 G1 X164.382 Y33.463 E0.059 G1 X164.649 Y32.907 E0.06996 G1 X165.575 Y31.175 E0.10487 G1 X165.96 Y30.538 E0.1181 G1 X166.328 Y30.047 E0.12901 G1 X167.569 Y28.534 E0.1638 G1 X168.071 Y27.985 E0.17702 G1 X168.531 Y27.571 E0.18802 G1 X170.046 Y26.328 E0.22286 G1 X170.646 Y25.888 E0.23608 G1 X171.175 Y25.575 E0.24701 G1 X172.907 Y24.649 E0.28192 G1 X173.581 Y24.333 E0.29515 G1 X174.164 Y24.128 E0.30614 G1 X176.038 Y23.56 E0.34095 G1 X176.761 Y23.383 E0.35418 G1 X177.37 Y23.295 E0.36512 G1 X179.322 Y23.103 E0.39998 G1 X180.065 Y23.07 E0.4132 G1 X180.679 Y23.103 E0.42413 G1 X182.63 Y23.295 E0.45898 G1 X183.365 Y23.408 E0.4722 G1 X183.961 Y23.56 E0.48313 G1 X185.835 Y24.128 E0.51794 G1 X186.535 Y24.382 E0.53118 G1 X187.092 Y24.649 E0.54216 G1 X188.824 Y25.575 E0.57707 G1 X189.461 Y25.96 E0.5903 G1 X189.952 Y26.328 E0.60121 G1 X191.465 Y27.569 E0.63599 G1 X192.014 Y28.071 E0.64922 G1 X192.428 Y28.531 E0.66022 G1 X193.671 Y30.046 E0.69505 G1 X194.111 Y30.646 E0.70828 G1 X194.424 Y31.175 E0.71921 G1 X195.35 Y32.907 E0.75412 G1 X195.666 Y33.581 E0.76735 G1 X195.871 Y34.163 E0.77832 G1 X196.439 Y36.036 E0.81311 G1 X196.616 Y36.759 E0.82634 G1 X196.703 Y37.365 E0.83723 G1 X196.896 Y39.316 E0.87208 Second file (under extrudes) ;START_OF_HEADER ;HEADER_VERSION:0.1 ;FLAVOR:Griffin ;GENERATOR.NAME:Cura_SteamEngine ;GENERATOR.VERSION:3.6.0 ;GENERATOR.BUILD_DATE:2018-11-12 ;TARGET_MACHINE.NAME:Ultimaker 3 ;EXTRUDER_TRAIN.0.INITIAL_TEMPERATURE:215 ;EXTRUDER_TRAIN.0.MATERIAL.VOLUME_USED:433 ;EXTRUDER_TRAIN.0.MATERIAL.GUID:532e8b3d-5fd4-4149-b936-53ada9bd6b85 ;EXTRUDER_TRAIN.0.NOZZLE.DIAMETER:0.4 ;EXTRUDER_TRAIN.0.NOZZLE.NAME:AA 0.4 ;EXTRUDER_TRAIN.1.INITIAL_TEMPERATURE:100 ;EXTRUDER_TRAIN.1.MATERIAL.VOLUME_USED:1119 ;EXTRUDER_TRAIN.1.MATERIAL.GUID:86a89ceb-4159-47f6-ab97-e9953803d70f ;EXTRUDER_TRAIN.1.NOZZLE.DIAMETER:0.4 ;EXTRUDER_TRAIN.1.NOZZLE.NAME:BB 0.4 ;BUILD_PLATE.TYPE:glass ;BUILD_PLATE.INITIAL_TEMPERATURE:60 ;PRINT.TIME:4501 ;PRINT.SIZE.MIN.X:9 ;PRINT.SIZE.MIN.Y:6 ;PRINT.SIZE.MIN.Z:0.27 ;PRINT.SIZE.MAX.X:213 ;PRINT.SIZE.MAX.Y:207 ;PRINT.SIZE.MAX.Z:4.12 ;END_OF_HEADER ;Generated with Cura_SteamEngine 3.6.0 T0 M82 ;absolute extrusion mode G92 E0 M109 S215 G0 F15000 X9 Y6 Z2 G280 G1 F1500 E-6.5 ;LAYER_COUNT:42 ;LAYER:0 M107 M204 S625 M205 X6 Y6 G0 F5000 X163.408 Y36.634 Z0.27 M204 S500 M205 X5 Y5 ;TYPE:SKIRT G1 F1500 E0 G1 F1200 X163.56 Y36.036 E0.00203 G1 X164.128 Y34.163 E0.00847 G1 X164.382 Y33.463 E0.01093 G1 X164.649 Y32.907 E0.01296 G1 X165.575 Y31.175 E0.01942 G1 X165.96 Y30.538 E0.02187 G1 X166.328 Y30.047 E0.02389 G1 X167.569 Y28.534 E0.03033 G1 X168.071 Y27.985 E0.03278 G1 X168.531 Y27.571 E0.03482 G1 X170.046 Y26.328 E0.04127 G1 X170.646 Y25.888 E0.04372 G1 X171.175 Y25.575 E0.04574 G1 X172.907 Y24.649 E0.05221 G1 X173.581 Y24.333 E0.05466 G1 X174.164 Y24.128 E0.05669 G1 X176.038 Y23.56 E0.06314 G1 X176.761 Y23.383 E0.06559 G1 X177.37 Y23.295 E0.06761 G1 X179.322 Y23.103 E0.07407 G1 X180.065 Y23.07 E0.07652 G1 X180.679 Y23.103 E0.07854 G1 X182.63 Y23.295 E0.085 G1 X183.365 Y23.408 E0.08744 G1 X183.961 Y23.56 E0.08947 G1 X185.835 Y24.128 E0.09592 G1 X186.535 Y24.382 E0.09837 G1 X187.092 Y24.649 E0.1004 G1 X188.824 Y25.575 E0.10687 G1 X189.461 Y25.96 E0.10932 G1 X189.952 Y26.328 E0.11134 G1 X191.465 Y27.569 E0.11778 G1 X192.014 Y28.071 E0.12023 G1 X192.428 Y28.531 E0.12226 G1 X193.671 Y30.046 E0.12871 G1 X194.111 Y30.646 E0.13116 G1 X194.424 Y31.175 E0.13319 G1 X195.35 Y32.907 E0.13965 G1 X195.666 Y33.581 E0.1421 G1 X195.871 Y34.163 E0.14413 G1 X196.439 Y36.036 E0.15058 G1 X196.616 Y36.759 E0.15303 G1 X196.703 Y37.365 E0.15504 G1 X196.896 Y39.316 E0.1615

Smithy, My filament seems to look normal, no grinding present. I cleaned the nozzle using the atomic method that UM website outlines. I also disassembled the printcore and checked to make sure there were no obstructions either and everything looked clean. I just pulled some small wispy strands from the fan but it didn't visibly or audibly make a difference on the fan speed. However, running the print again it does seem to be doing better, and the filament is sticking to the plate evenly now. The line width still seems to be thinner than expected. When printing the brim, the lines are suppose to touch right? mine are printing just thin enough where there is a small gap in between each line.

Hey Guys, I've been struggling with under extrusion with my ultimaker 3 for a couple weeks now. Whenever I start a print, it lays down the filament fine for the first 20 seconds or so, then the line width becomes thinner and eventually stops sticking to the build plate. I have done the active and manual leveling, cleaned out the nozzle, and verified the nozzle and bed temps. I would appreciate some help and advice for how to fix the solution. I've attached a picture showing the progression of the first couple passes. Thanks!

@goldblam Did you ever find a fix to your problem? I am experiencing the same issue with my UM3.