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Solved First few layers not printing correctly

Discussion in 'Troubleshooting' started by Greg Howard, Dec 7, 2016.

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  1. Greg Howard

    Greg Howard Member

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    First 2 layers after firmware corrected/updated. Same issue. Here is my gcode for the printer:
    Start (I added the Z5 because the extruder would sometimes drag across the plate)

    G28 X0 Y0 Z0 ; home all axes
    G1 Z5 F5000 ; lift nozzle
    M109 S[temperature] ; set the extruder temp and wait
    G28 X0 Y0 Z0 ; Home Z again in case there was filament on nozzle
    G29 ; probe the bed
    G1 Z5

    End
    M104 S0 ; turn off temperature
    G1 X10 Y200
    M84 ; disable motors
     
    #41 Greg Howard, Jan 5, 2017
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    You are missing the M565 (which explains the dragging):

    G28 ; home all axes
    M565 Z-1.0 ; set the offset for auto-leveling mechanism
    G29 ; run auto-level

    You will need to experiment to find the best value for the M565. -1.0 is the default, start there.
     
    #42 mark tomlinson, Jan 5, 2017
  3. Greg Howard

    Greg Howard Member

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    What does the M565 z-10 offset do? does a '-' bring the nozzle up or down?
     
    #43 Greg Howard, Jan 5, 2017
  4. Greg Howard

    Greg Howard Member

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    I changed the offset to 0.5 and it appears to make a big difference. Ok, very big difference between the old and new settings.

    2017-01-05 14.20.54.jpg
     
    #44 Greg Howard, Jan 5, 2017
  5. Greg Howard

    Greg Howard Member

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    Just printed a new part, it does not have that weird fillet. I can fine tune the offset a bit more and get it near perfect.

    Fixed!

    Again, Thanks Mike!
     
    #45 Greg Howard, Jan 5, 2017
  6. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    More negative offsets are further from the bed. Less negative are closer to the bed. Glad you got it working.

    Sent from my SAMSUNG-SM-G930A using Tapatalk
     
    #46 mark tomlinson, Jan 5, 2017
  7. WheresWaldo

    WheresWaldo Volunteer ( ͠° ͟ʖ ͡°)
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    It still looks like it is under-extruding to me, here is a video that can help:
     
    #47 WheresWaldo, Jan 6, 2017
  8. Rigmarol

    Rigmarol Well-Known Member

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    WIN_20170106_20_08_35_Pro.jpg I know you said you have it resolved but I said I would print out your file to see how it comes out on my Robo and here it is:. I've been sick with the flu or I'd have done it sooner.

    I printed it on edge and on it's face just to see how it did. I used a raft on both.
     
    #48 Rigmarol, Jan 6, 2017
    mark tomlinson likes this.
  9. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    On edge it needed a RAFT.
    :)
     
    #49 mark tomlinson, Jan 6, 2017
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