I’m just going to post this pic. Will tell more then words. This happens with abs and pla.
jonathan9573
@jonathan9573
Posts made by jonathan9573

Getting poor extrusion on some layers.

RE: Printer printing at 36mm of print bed
Ok so my homing position is x10,y10,z235. Homing to max.
Here is the GCode that I exported from the slice....
; Software Leveling Applied
; Generated with MatterSlice 2.19.6
; filamentDiameter = 1.68
; extrusionWidth = 0.4
; firstLayerExtrusionWidth = 0.56
; layerThickness = 0.3
; firstLayerThickness = 0.3
; automatic settings before start_gcode
G21 ; set units to millimeters
M107 ; fan off
M104 T0 S210 ; start heating extruder 1
T0 ; set the active extruder to 0
; settings from start_gcode
G28 ; home all axes
G1 Z27.51 F5000
; automatic settings after start_gcode
M109 T0 S210 ; Finish heating extruder1
T0 ; set the active extruder to 0
G90 ; use absolute coordinates
G92 E0 ; reset the expected extruder position
M82 ; use absolute distance for extrusion
; Layer count: 3
; Layer Change GCode
; LAYER:0
; LAYER_HEIGHT:0.3
; TYPE:FILL
M400
M107
G1 X0 Y0 Z7.81 F5400
G1 X4.05 Y2.08 Z7.79
G1 X8.11 Y4.17 Z7.77
G1 X12.16 Y6.25 Z7.75
G1 X16.21 Y8.34 Z7.74
G1 X20.26 Y10.42 Z7.72
G1 X24.32 Y12.5 Z7.7
G1 X28.37 Y14.59 Z7.68
G1 X32.42 Y16.67 Z7.66
G1 X36.47 Y18.76 Z7.65
G1 X40.53 Y20.84 Z7.63
G1 X44.58 Y22.92 Z7.61
G1 X48.63 Y25.01 Z7.59
G1 X52.69 Y27.09 Z7.58
G1 X56.74 Y29.18 Z7.56
G1 X60.79 Y31.26 Z7.54
G1 X64.84 Y33.34 Z7.52
G1 X68.9 Y35.43 Z7.51
G1 X72.95 Y37.51 Z7.49
G1 X77 Y39.6 Z7.47
G1 X81.05 Y41.68 Z7.45
G1 X85.11 Y43.77 Z7.43
G1 X89.16 Y45.85 Z7.42
G1 X93.21 Y47.93 Z7.4
G1 X97.26 Y50.02 Z7.38
G1 X101.32 Y52.1 Z7.36
G1 X105.37 Y54.19 Z7.35
G1 X109.42 Y56.27 Z7.33
G1 X113.48 Y58.35 Z7.31
G1 X117.53 Y60.44 Z7.29
G1 X121.58 Y62.52 Z7.28
G1 X125.63 Y64.61 Z7.26
G1 X129.69 Y66.69 Z7.24
G1 X133.74 Y68.77 Z7.22
G1 X137.79 Y70.86 Z7.2
G1 X141.84 Y72.94 Z7.19
G1 X145.9 Y75.03 Z7.17
G1 X149.95 Y77.11 Z7.15
G1 X154 Y79.19 Z7.13
G1 X158.06 Y81.28 Z7.12
G1 X162.11 Y83.36 Z7.1
G1 X166.16 Y85.45 Z7.08
G1 X170.21 Y87.53 Z7.06
G1 X174.27 Y89.61 Z7.05
G1 X178.32 Y91.7 Z7.03
G1 X182.37 Y93.78 Z7.01
G1 X186.42 Y95.87 Z6.99
G1 X190.48 Y97.95 Z6.98
G1 X194.53 Y100.03 Z6.96
G1 X198.58 Y102.12 Z6.94
G1 X202.64 Y104.2 Z6.92
G1 X206.69 Y106.29 Z6.9
G1 X210.74 Y108.37 Z6.89
G1 X214.79 Y110.45 Z6.87
G1 X218.85 Y112.54 Z6.85
G1 X222.9 Y114.62 Z6.83
G1 X226.95 Y116.71 Z6.82
G1 X231 Y118.79 Z6.8
G1 X235.06 Y120.88 Z6.78
G1 X239.11 Y122.96 Z6.76
G1 X243.16 Y125.04 Z6.75
G1 X247.21 Y127.13 Z6.73
G1 X251.27 Y129.21 Z6.71
G1 X255.32 Y131.3 Z6.69
G1 X259.37 Y133.38 Z6.67
G1 X263.43 Y135.46 Z6.66
G1 X267.48 Y137.55 Z6.64
G1 X271.53 Y139.63 Z6.62
G1 X275.58 Y141.72 Z6.6
G1 X279.64 Y143.8 Z6.59
G1 X283.69 Y145.88 Z6.57
G1 X287.74 Y147.97 Z6.55
G1 X291.79 Y150.05 Z6.53
G1 X295.85 Y152.14 Z6.52
G1 X299.9 Y154.22 Z6.5
G1 X299.9 Y160.61 Z6.46
G1 X299.9 Y166.99 Z6.42
G1 X297.3 Y166.99 Z6.42
; TYPE:SKIRT
G1 F7200
G1 X297.94 Y165.92 Z6.43 E0.095 F1500
G1 X298.59 Y164.84 Z6.43 E0.189
G1 X299.23 Y163.77 Z6.44 E0.284
G1 X300.35 Y162.27 Z6.45 E0.426
G1 X301.46 Y160.76 Z6.46 E0.568
G1 X302.3 Y159.83 Z6.46 E0.663
G1 X303.14 Y158.91 Z6.46 E0.757
G1 X303.98 Y157.98 Z6.47 E0.852
G1 X304.91 Y157.14 Z6.47 E0.947
G1 X305.83 Y156.3 Z6.48 E1.042
G1 X306.76 Y155.46 Z6.48 E1.137
G1 X308.27 Y154.35 Z6.49 E1.279
G1 X309.77 Y153.23 Z6.49 E1.421
G1 X310.84 Y152.59 Z6.49 E1.516
G1 X311.92 Y151.94 Z6.5 E1.61
G1 X312.99 Y151.3 Z6.5 E1.705
G1 X314.69 Y150.5 Z6.5 E1.847
G1 X316.38 Y149.7 Z6.5 E1.989
G1 X317.56 Y149.28 Z6.51 E2.084
G1 X318.73 Y148.85 Z6.51 E2.179
G1 X319.91 Y148.43 Z6.51 E2.274
G1 X321.73 Y147.98 Z6.51 E2.416
G1 X323.54 Y147.52 Z6.51 E2.558
G1 X324.78 Y147.34 Z6.51 E2.653
G1 X326.01 Y147.15 Z6.51 E2.747
G1 X327.25 Y146.97 Z6.51 E2.842
G1 X328.5 Y146.91 Z6.51 E2.937
G1 X329.75 Y146.85 Z6.51 E3.031
G1 X331 Y146.79 Z6.5 E3.126
G1 X332.25 Y146.85 Z6.5 E3.221Obviously not all of it but I just grabbed what I thought was important.
This is the output from MatterControl as it started to print....'
ok 1
SelectExtruder:0
FlowMultiply:100
M114
ok 1
X:5.00 Y:35.00 Z:27.290 E:0.0000
G90
ok 1
G92 E0
ok 1
M82
ok 1
M400
ok 1
M107
ok 1
G1 X4.38 Y30.63 Z24.85 F5400
ok 1
X:5.00 Y:35.00 Z:27.290 E:0.0000
G1 X3.75 Y26.25 Z22.42
ok 1
G1 X3.13 Y21.88 Z19.98
X:5.00 Y:35.00 Z:27.290 E:0.0000
ok 1
G1 X2.5 Y17.5 Z17.55
X:5.00 Y:35.00 Z:27.290 E:0.0000
ok 1
G1 X1.88 Y13.13 Z15.11
X:5.00 Y:35.00 Z:27.290 E:0.0000
ok 1
G1 X1.25 Y8.75 Z12.68
X:5.00 Y:35.00 Z:27.290 E:0.0000
ok 1
G1 X0.63 Y4.38 Z10.24
X:5.00 Y:35.00 Z:27.290 E:0.0000
ok 1
G1 X0 Y0 Z7.81
X:5.00 Y:35.00 Z:27.290 E:0.0000
ok 1
G1 X9.21 Y36.7 Z27.27
X:5.00 Y:35.00 Z:27.290 E:0.0000
ok 1
G1 X13.43 Y38.41 Z27.26
ok 1
G1 X17.64 Y40.11 Z27.24
ok 1
G1 X21.85 Y41.81 Z27.22
ok 1
G1 X26.06 Y43.52 Z27.21
ok 1
G1 X30.28 Y45.22 Z27.19
ok 1
G1 X34.49 Y46.92 Z27.18
ok 1
G1 X38.7 Y48.63 Z27.16
ok 1
G1 X42.92 Y50.33 Z27.15
ok 1
G1 X47.13 Y52.03 Z27.13
ok 1
G1 X51.34 Y53.73 Z27.12
ok 1
G1 X55.55 Y55.44 Z27.1
ok 1
G1 X59.77 Y57.14 Z27.08
ok 1
G1 X63.98 Y58.84 Z27.07
ok 1
G1 X68.19 Y60.55 Z27.05
ok 1
G1 X72.41 Y62.25 Z27.04
ok 1
G1 X76.62 Y63.95 Z27.02
ok 1
G1 X80.83 Y65.66 Z27.01
ok 1
G1 X85.04 Y67.36 Z26.99
ok 1
G1 X89.26 Y69.06 Z26.98
ok 1
G1 X93.47 Y70.77 Z26.96
ok 1
G1 X97.68 Y72.47 Z26.94
ok 1
G1 X101.9 Y74.17 Z26.93
ok 1
G1 X106.11 Y75.88 Z26.91
ok 1 
RE: Printer printing at 36mm of print bed
I am using the mattercontrol slicer which has been working fine until a month ago or so.
So when I want to print something I create the part, slice it with mattercontrol. Then hit print. It homes the printer (homes to the top) and goes to the hot end warm up position. As soon as it is to temp it goes to the xy position but does not drop the z axis.
I’ll try and post some gcode later.

RE: Printer printing at 36mm of print bed
Well I tried that and it did the same thing. Homed the printer, G90, resliced and print. Nothing changed.

RE: Printer printing at 36mm of print bed
Thank you so much for the help. I will try it and let you know what the outcome is.

RE: Printer printing at 36mm of print bed
What is this going to do and is it something I will have to do every time or just this once?

RE: Printer printing at 36mm of print bed
My printer is home made and I have been running it for quite some time. It seemed to start doing this out of the blue. I examined the issue in a little more detail and what happens is when it goes to the heating extruded position (No matter where I make it) as soon as it is done heating it goes directly to the XY position and starts printing. Does not move in the z axis. It is written this way in the gcode.

Printer printing at 36mm of print bed
As the title says........I turn the printer on and connect to it, it will print at bed level but if I have to restart the print for any reason it starts printing at 36 mm in the air. I’m at a loss.

Printing in mid air.
So I just recently am having an issue with my printer not lowering to the print bed from the point where it is warming up the heater which is about 25mm above the bed at the corner. The head just goes straight over and starts printing at 25mm above the bed. It seems like on some print it works just fine, then other prints it doesn’t. I have used files I made in autocad, in mattercontrol, and from Thingiverse. Think I have had problem with each.

RE: PLA clogging after 23 layer.
So I found out that the ptfe lined heatbreak was in fact not actually ptfe lined. I was getting heat creep up the filament. Swapped it for a ptfe lined heatbreak and all is well. Thank you everyone for your replies.