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Posted · Printing off the table

I have been using Cura 4.4.0 since Dec. on my Ender 3 with no problem.. I upgraded to 4.4.6 and now my prints are off the table in the left front corner.  Stumped.

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    Posted · Printing off the table

    A picture is worth a thousand words.  Do you mean it's angled off the bed somehow?  Air printing in the left front?

    If the bed is level I don't understand how it could do that.  I installed 4.6 and now 4.6.1 and there haven't been any issues with the 3 Pro.

    Create a gcode file of any model using - Cura 4.6, .2 layer height, with a skirt for bed adhesion.  Open the file in Notepad and scroll down until you find a Z value.  It should look something like this:

     

    G1 F300 Z0.4
    G0 F4500 X75.844 Y52.594 Z0.4
    ;TYPE:SKIRT
    G1 F300 Z0.2       ;This line is the "drop down" to the working height.

    G1 F1500 E0
    G1 F3000 X76.798 Y52.659 E0.03254

     

    I had a situation where it appeared that my bed had warped.  It turned out that I had been adjusting the left front and right rear screws excessively and the bed had become bowed from the uneven pressure of the leveling screws.  I took the glass off the bed and using a small block under the nozzle (about 5mm high), I leveled the bed with no build surface on it.  That fixed it.

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    Posted · Printing off the table

    Greg, thanks for the reply.  I will try your suggestion this morning.  My description wasn't adequate. Last night I remembered I also have Prusa slicer on my computer so I sliced the same object wih it and the printing location was normal in the center of the bed. I also reloaded Cura 4.4.o and now have the same problem when slicing with 4.6. 

    When using 4.6 the printer lays down a strip of filament very near the left edge of the bed and then comes back to the left front corner and start printing my object.  The Z position appears to be normal but the object is partially printed on the corner of the bed and partly in the air to the left of the bed.

     

    Start of my g-code file

    ;FLAVOR:Marlin
    ;TIME:2209
    ;Filament used: 1.35208m
    ;Layer height: 0.2
    ;MINX:-7.739
    ;MINY:-34.097
    ;MINZ:0.2
    ;MAXX:7.739
    ;MAXY:34.097
    ;MAXZ:6.2
    ;Generated with Cura_SteamEngine 4.4.0
    M140 S60
    M105
    M190 S60
    M104 S200
    M105
    M109 S200
    M82 ;absolute extrusion mode
    M201 X500.00 Y500.00 Z100.00 E5000.00 ;Setup machine max acceleration
    M203 X500.00 Y500.00 Z10.00 E50.00 ;Setup machine max feedrate
    M204 P500.00 R1000.00 T500.00 ;Setup Print/Retract/Travel acceleration
    M205 X8.00 Y8.00 Z0.40 E5.00 ;Setup Jerk
    M220 S100 ;Reset Feedrate
    M221 S100 ;Reset Flowrate

    G28 ;Home

    G92 E0 ;Reset Extruder
    G1 Z2.0 F3000 ;Move Z Axis up
    G1 X10.1 Y20 Z0.28 F5000.0 ;Move to start position
    G1 X10.1 Y200.0 Z0.28 F1500.0 E15 ;Draw the first line
    G1 X10.4 Y200.0 Z0.28 F5000.0 ;Move to side a little
    G1 X10.4 Y20 Z0.28 F1500.0 E30 ;Draw the second line
    G92 E0 ;Reset Extruder
    G1 Z2.0 F3000 ;Move Z Axis up

    G92 E0
    G92 E0
    G1 F1500 E-6.5
    ;LAYER_COUNT:31
    ;LAYER:0
    M107
    ;MESH:TX Tray Latch v1.stl
    G0 F6000 X-5.763 Y4.303 Z0.2
    ;TYPE:WALL-INNER
    G1 F1500 E0
    G1 F1200 X5.761 Y4.303 E0.38329
    G1 X5.763 Y4.303 E0.38336
    G1 X5.763 Y0.892 E0.49681
    G1 X5.763 Y-4.303 E0.66959
    G1 X-5.761 Y-4.303 E1.05288
    G1 X-5.763 Y-4.303 E1.05295
    G1 X-5.763 Y4.303 E1.33919
    G0 F6000 X-5.363 Y3.903
    G1 F1200 X5.363 Y3.903 E1.69593
    G1 X5.363 Y-3.903 E1.95556
    G1 X-5.363 Y-3.903 E2.31231
    G1 X-5.363 Y3.903 E2.57194
    G0 F6000 X-4.963 Y3.503

    I sent the whole file to a friend who has the same p;rinter and is using 4.6 and I will hear from him this morning.

     

    CE3_TX Tray Latch v1.gcode

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    Posted (edited) · Printing off the table

    In Cura - check the machine settings for your printer and make sure the build plate size is correct.  It should be 235 x 235 x 250.

     

    Oh, and in Cura 4.4 you couldn't select an Ender 3 Pro as a printer, but in the new versions you can.  If you haven't done it already, in Monitor use Add a Printer and under Creality you can select the Ender 3Pro.  It will come in with the correct settings for your printer.

    Edited by GregValiant
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    Posted · Printing off the table

    Greg- I set Cura 4.6.1 to the parameters you suggested and below is the result. I will try to run this on my machine in a few minutes.

    Sid

    ==============================

    M105
    M190 S60
    M104 S210
    M105
    M109 S210
    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 X0.1 Y20 Z0.3 F5000.0 ; Move to start position
    G1 X0.1 Y200.0 Z0.3 F1500.0 E15 ; Draw the first line
    G1 X0.4 Y200.0 Z0.3 F5000.0 ; Move to side a little
    G1 X0.4 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
    G92 E0
    G92 E0
    G1 F1500 E-6.5
    ;LAYER_COUNT:31
    ;LAYER:0
    M107
    G0 F6000 X7.294 Y-44.486 Z0.2
    ;TYPE:SKIRT
    G1 F1500 E0
    G1 F1200 X8.196 Y-44.433 E0.03005
    G1 X9.089 Y-44.301 E0.06008
    G1 X9.967 Y-44.09 E0.09011
    G1 X10.823 Y-43.802 E0.12015
    G1 X11.65 Y-43.44 E0.15018
    G1 X12.442 Y-43.005 E0.18023
    G1 X13.193 Y-42.503 E0.21027
    G1 X13.896 Y-41.936 E0.24031
    G1 X14.546 Y-41.309 E0.27035

     

    P1020980.JPG

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    Posted · Printing off the table

    Hold on.  There are a bunch of negative Y numbers in there and the X values are all near the left edge.  Don't bother to print that yet.  It looks like the machine has been set up with "0" in the middle of the build plate.

    In Cura, select Monitor / {Your Printer} / Manage Printers / Machine settings and make sure that "Origin at Center" is NOT checked.  Then slice it again.

     

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    Posted · Printing off the table

    You are right it is checked. I changed it when I first had the trouble yesterday and thought I had unchecked it. Below is unchecked version and photo of my printer setting.  You said to use 235 but mine has always been at 200. After uncheck.

    P1020983.thumb.JPG.508132c7f7e2c381ca61bc7d508fa2f4.JPG

    ;FLAVOR:Marlin
    ;TIME:1585
    ;Filament used: 1.02285m
    ;Layer height: 0.2
    ;MINX:81.843
    ;MINY:54.703
    ;MINZ:0.2
    ;MAXX:118.157
    ;MAXY:145.297
    ;MAXZ:6.2
    ;Generated with Cura_SteamEngine 4.6.1
    M140 S60
    M105
    M190 S60
    M104 S210
    M105
    M109 S210
    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 X0.1 Y20 Z0.3 F5000.0 ; Move to start position
    G1 X0.1 Y200.0 Z0.3 F1500.0 E15 ; Draw the first line
    G1 X0.4 Y200.0 Z0.3 F5000.0 ; Move to side a little
    G1 X0.4 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
    G92 E0
    G92 E0
    G1 F1500 E-6.5
    ;LAYER_COUNT:31
    ;LAYER:0
    M107
    G0 F6000 X107.294 Y55.514 Z0.2
    ;TYPE:SKIRT
    G1 F1500 E0
    G1 F1200 X108.196 Y55.567 E0.03005
    G1 X109.089 Y55.699 E0.06008
    G1 X109.967 Y55.91 E0.09011
    G1 X110.823 Y56.198 E0.12015

     

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    Posted · Printing off the table

    I just sliced again and I don't know much about G-code but I think this one may be right. The "x" values seem better to me.

     

    ;Generated with Cura_SteamEngine 4.6.1
    M140 S60
    M105
    M190 S60
    M104 S210
    M105
    M109 S210
    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 X0.1 Y20 Z0.3 F5000.0 ; Move to start position
    G1 X0.1 Y200.0 Z0.3 F1500.0 E15 ; Draw the first line
    G1 X0.4 Y200.0 Z0.3 F5000.0 ; Move to side a little
    G1 X0.4 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
    G92 E0
    G92 E0
    G1 F1500 E-6.5
    ;LAYER_COUNT:31
    ;LAYER:0
    M107
    G0 F6000 X107.294 Y55.514 Z0.2
    ;TYPE:SKIRT
    G1 F1500 E0
    G1 F1200 X108.196 Y55.567 E0.03005
    G1 X109.089 Y55.699 E0.06008
    G1 X109.967 Y55.91 E0.09011
    G1 X110.823 Y56.198 E0.12015
    G1 X111.65 Y56.56 E0.15018
    G1 X112.442 Y56.995 E0.18023
    G1 X113.193 Y57.497 E0.21027
    G1 X113.896 Y58.064 E0.24031
    G1 X114.546 Y58.691 E0.27035
    G1 X115.138 Y59.373 E0.30039
    G1 X115.668 Y60.104 E0.33042
    G1 X116.13 Y60.88 E0.36046
    G1 X116.523 Y61.693 E0.39049
    G1 X116.841 Y62.538 E0.42052
    G1 X117.084 Y63.408 E0.45056
    G1 X117.249 Y64.296 E0.4806

     

     

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    Posted (edited) · Printing off the table

    That is much closer.

    Now, go back into Machine Settings and change the width and depth of the build plate to 225 x 225.

    Then on your machine, do Auto Home.

    After it is home, move the X axis 4mm.  Move the Y axis 8mm.  Z must remain at 0 so make sure the bed is low so the nozzle doesn't drag.

    Back up to the Prepare screen and click on "Set Home Offsets"

    You should be good to go.  To double check - raise the Z a bit and move the print head to X112.5, Y112.5 and it should be right in the middle of the build plate.

    Edited by GregValiant
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    Posted · Printing off the table

    I will your suggestions tomorrow.  It is now printing in the center of the build plate.  Thanks

    Sid

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