1. Got a question or need help troubleshooting? Post to the troubleshooting forum or Search the forums!

Answered Nozzle Digging Into Print (Noob)

Discussion in 'Troubleshooting' started by KingaLing, Apr 23, 2016.

  1. KingaLing

    KingaLing New Member

    Joined:
    Apr 21, 2016
    Messages:
    16
    Likes Received:
    1
    First, let me thank everyone here in this forum, as I just got my Robo + (refurb) today, and I was able to install LCD Board and E3D V6, on my own, the knowledge, and helpful guides are awesome.

    This is my first time posting on any forum, ever, so forgive me if I don't post this correctly. When I got the printer and hooked it up and tried to test print a small robot, just to see if it would work properly, it did not, and that is why I am posting here. It started with laying down a skirt, but such a thin layer, that you could barely see anything on the bed. As the print continues, it starts to lay filament, but the nozzle is digging into the print as it lays down filament. I did look up how to calibrate and what not, but it did not seem to help. I believe I set my offset correctly for Z, below will be my gcode, that I use in Cura. any assistance would be greatly appreciated, as I have been waiting a long time for this and seem bummed that It did not work out of the box.

    Oh, and the reason I put on the E3D was because the original Hex nozzle was performing the same exact way. I wasn't going to change the nozzle right away, but since it was acting up, I figured I would change it, and give it a try, and sure enough no luck.

    Installed Marlin RoboV2 and loaded correctly as well.

    Cura GCode:
    ;Basic settings: Layer height: {layer_height} Walls: {wall_thickness} Fill: {fill_density}
    ;Print time: {print_time}
    ;M190 S{print_bed_temperature} ;
    ;M109 S{print_temperature} ;
    G21 ;metric values
    G90 ;absolute positioning
    M82 ;set extruder to absolute mode
    M107 ;start with the fan off
    G28 ;Home All
    M565 Z-1.0 ; Define 1.0mm of offset, adjust this value if you're too high/low. More negative is further from the bed
    G92 E0 ;Reset Extruder count
    G1 E-5.0 ;Retract 5mm for probing to limit dots
    G29 ; Run autolevel routine
    G1 Z15.0 F{travel_speed} ;move the platform down 15mm
    G92 E0 ;zero the extruded length
    G1 F200 E3 ;extrude 3mm of feed stock
    G92 E0 ;zero the extruded length again
    G1 F{travel_speed}
    ;Put printing message on LCD screen
    M117 Printing...

    *note: I have also tried the M565 way, but same results.

    Also, if you have a better recommendation for GCode, fill free to suggest.


    Again, thanks for all the initial knowledge, look forward to some helpful insight moving forward.
     
  2. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
    Staff Member

    Joined:
    Feb 21, 2013
    Messages:
    23,526
    Likes Received:
    7,305
    Which printer model is it (exactly) and which firmware did you use (exactly)?
    The printers (the Beta, the R1, the R1+, the beta or the R1 with the Leadscrew upgrade) all have different Z steps per mm.
    Actually the R1 or Beta with the leadscrew upgrade is the same as the R1+ for Z steps...

    It is confusing and easy to get the wrong configuration installed if you manually update the firmware.

    Check your configuration.h and see what you have for this line:

    #define DEFAULT_AXIS_STEPS_PER_UNIT {80,80,800,723.38} // default steps per unit for RoBo 3D R1 +
     
  3. KingaLing

    KingaLing New Member

    Joined:
    Apr 21, 2016
    Messages:
    16
    Likes Received:
    1
    I ordered this through Robo 3D and it is a Refurbed Robo 3d R1 Plus.

    #define DEFAULT_AXIS_STEPS_PER_UNIT {80,80,800,723.38} // default steps per unit for RoBo 3D R1 +
    this is what is in my configuration.h file.
     
  4. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
    Staff Member

    Joined:
    Feb 21, 2013
    Messages:
    23,526
    Likes Received:
    7,305
    If it is an R1+ then those are the correct numbers. If it is an R1 (no +) then those are wrong.
    Those are way wrong for the normal R1 (it is almost 2.5 times as many steps and would explain your problem).
     
  5. KingaLing

    KingaLing New Member

    Joined:
    Apr 21, 2016
    Messages:
    16
    Likes Received:
    1
    I gotcha, well I paid $599 for the R1 refurb, instead of the $499 for the regular R1, reached out through email, and specifically requested R1 Plus, it had the quick release installed on the extruder, and the lead screws look course, how else would I be able to tell?
     
  6. KingaLing

    KingaLing New Member

    Joined:
    Apr 21, 2016
    Messages:
    16
    Likes Received:
    1
    Should I try a print with different software?
     
  7. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
    Staff Member

    Joined:
    Feb 21, 2013
    Messages:
    23,526
    Likes Received:
    7,305
    Can't hurt. If it is an R1+ it even has two stepper drivers for the Z (one for each stepper).
    Probably the easiest way tell is to look at the way the Z rods connect to the steppers.
    If they use couplers like these It is an R1.:

    [​IMG]


    If the Z rods directly attach to the steppers without those (in other words -- leadscrews) it is an R1+
     
  8. KingaLing

    KingaLing New Member

    Joined:
    Apr 21, 2016
    Messages:
    16
    Likes Received:
    1
    It does have both of those stepper drivers for Z rods.
     
  9. KingaLing

    KingaLing New Member

    Joined:
    Apr 21, 2016
    Messages:
    16
    Likes Received:
    1
    If it has those parts, should I try a different software, or something else?
     
  10. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
    Staff Member

    Joined:
    Feb 21, 2013
    Messages:
    23,526
    Likes Received:
    7,305
    If it has those two couplers you have the wrong Z steps in your firmware.
     
  11. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
    Staff Member

    Joined:
    Feb 21, 2013
    Messages:
    23,526
    Likes Received:
    7,305
    with the couplers your configuration.h line would be:

    #define DEFAULT_AXIS_STEPS_PER_UNIT {80,80,2267.72,723.38}
     
  12. KingaLing

    KingaLing New Member

    Joined:
    Apr 21, 2016
    Messages:
    16
    Likes Received:
    1
    That does not match what I have, I have (80,80,800,723.38)

    Should I change and test, or do you think there are other areas that may be incorrect?
     
  13. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
    Staff Member

    Joined:
    Feb 21, 2013
    Messages:
    23,526
    Likes Received:
    7,305
    If you have these on the bottom of your Z rods:

    [​IMG]

    Then 2267.72 is your correct Z steps, not 800.

    Unless you have a really old Beta (not an R1 at all) in which case it is another number :)
    You DO have a plastic cover on the bottom of the printer do you not?
     
  14. KingaLing

    KingaLing New Member

    Joined:
    Apr 21, 2016
    Messages:
    16
    Likes Received:
    1
    I do have a plastic bottom, so I am not sure, are you saying I do, or do not have an R1 Plus.
     
  15. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
    Staff Member

    Joined:
    Feb 21, 2013
    Messages:
    23,526
    Likes Received:
    7,305
    That explains why it is burying itself into the prior layers if it is only going 800 steps not 2267 :)
     
  16. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
    Staff Member

    Joined:
    Feb 21, 2013
    Messages:
    23,526
    Likes Received:
    7,305
    If you have those couplers you DO NOT have an R1+, you have an R1.
    The R1+ has leadscrews and does not have the couplers.
     
  17. KingaLing

    KingaLing New Member

    Joined:
    Apr 21, 2016
    Messages:
    16
    Likes Received:
    1
    So can you tell me which firmware I should download?
     
  18. KingaLing

    KingaLing New Member

    Joined:
    Apr 21, 2016
    Messages:
    16
    Likes Received:
    1
    Guess I have to reach out to Robo and talk to them on why they charged me for one and didn't send me the correct model, thanks for all the help so far.
     
  19. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
    Staff Member

    Joined:
    Feb 21, 2013
    Messages:
    23,526
    Likes Received:
    7,305
  20. KingaLing

    KingaLing New Member

    Joined:
    Apr 21, 2016
    Messages:
    16
    Likes Received:
    1
    I see, is there anything else I need to change though, as you can see in the picture, it is not burying the nozzle, but doesn't look good.
     

    Attached Files:

Share This Page