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Print Quality issue

Discussion in 'Troubleshooting' started by Shrey, Jan 10, 2018.

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  1. Shrey

    Shrey Active Member

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    Anyone know why I’m getting this gaps at the corners, I went through troubleshooting and adjusted the print speed etc to reduce the vibration at turns but I still can’t seem to figure it out.

    Could this be cause by under extrusion? Or some other issue.

    The one green I printed with brand new filament just to make sure filament wasn’t the issue.

    [​IMG][​IMG]

    IMG_3491.JPG IMG_3490.JPG IMG_3489.JPG

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    #1 Shrey, Jan 10, 2018
    Last edited: Jan 10, 2018
  2. Geof

    Geof Volunteer Moderator
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    Your prints look very hot. Can you tell us your settings? the gaps could be some partial clogging from to much heat (or not enough cooling) or retraction issues (not likely but maybe)
     
    #2 Geof, Jan 11, 2018
  3. Shrey

    Shrey Active Member

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    So blue was the Robo filament I ran at 192-195

    And green is the esun pla+ running at 205-207

    I had cooling running at 100%


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    #3 Shrey, Jan 11, 2018
  4. Shrey

    Shrey Active Member

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    Retraction is the only thing I have no idea on how to modify because when I printed hollow file there was bit of stringing in the inside


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    #4 Shrey, Jan 11, 2018
  5. OutsourcedGuru

    OutsourcedGuru Active Member

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    Yeah, I was going to say "too hot" as well. I'd try the PLA at 190 and compare.
     
    #5 OutsourcedGuru, Jan 11, 2018
  6. Shrey

    Shrey Active Member

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    Yeah I’m testing it out at 198 specially because the box recommends 205-225.

    I’m also adjusting the z offset just to make sure.


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    #6 Shrey, Jan 11, 2018
  7. OutsourcedGuru

    OutsourcedGuru Active Member

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    Well, that's likely the PLA+, right? If you're getting this at 198 I think I'd drop by 5 at least and re-try.
     
    #7 OutsourcedGuru, Jan 11, 2018
  8. Shrey

    Shrey Active Member

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    Alright I will give that a try


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    #8 Shrey, Jan 11, 2018
  9. OutsourcedGuru

    OutsourcedGuru Active Member

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    And try with a small model like Benchy so that you don't have to waste too much filament.
     
    #9 OutsourcedGuru, Jan 11, 2018
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  10. Shrey

    Shrey Active Member

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    any idea why that is happening now.

    I've already tighten everything for the cog wheel area
     
    #10 Shrey, Jan 11, 2018
  11. OutsourcedGuru

    OutsourcedGuru Active Member

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    That's... kind of odd. It looks like the carriage is moving around slower than what I'm used to. I'm guessing that blob in the front/right corner isn't wanted.

    Honestly, I'm having a hard time seeing what's going on here.

    Basics:
    * You want the first layer to be laid down as a rectangle (as seen using a magnifying glass) rather than like a blocky letter U (bed too high and the extrusion is squishing up) and also not like a rounded top (bed too low). The top of the first line laid down should be flat across its top.
    * I think I'd suggest that you dial in the Z-offset first with the standard PLA at 190 until you've got some good (small) parts and then move up from there.
     
    #11 OutsourcedGuru, Jan 11, 2018
  12. Shrey

    Shrey Active Member

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    I actually got in touch with someone at Robo and what they can assume is the issue in stepper motor for the extrusion where it’s not getting enough current through it I’m checking the plug for now and from there gonna try a reprint to see if that fixes it.



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    #12 Shrey, Jan 11, 2018
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  13. OutsourcedGuru

    OutsourcedGuru Active Member

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    Awesome. Let use know how that turns out. :)
     
    #13 OutsourcedGuru, Jan 11, 2018
  14. Shrey

    Shrey Active Member

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    it didn’t work stepper motor still make the same sound when I try to change the filament


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    #14 Shrey, Jan 11, 2018
  15. Geof

    Geof Volunteer Moderator
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    are you certain your timing pulleys are not loose? The stepper sound slike its clicking (likely because its extruding but the gantry isn't moving). Can you verify all of the set screws on all of the shafts are tight please. and thank you for the video.
     
    #15 Geof, Jan 11, 2018
  16. Shrey

    Shrey Active Member

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    I’m really not sure where they are located. If you mean the one for the cogwheel and the gear for pushing the out the filament they are right.


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    #16 Shrey, Jan 11, 2018
  17. Geof

    Geof Volunteer Moderator
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    I mean on the round shafts that the belts go on. If you move the carriage it should turn the pulley so you can see the set screws. I'm betting one of them (or more) are loose.
     
    #17 Geof, Jan 11, 2018
  18. Shrey

    Shrey Active Member

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    They are actually fairly tight, although that still should be having any issue with the Extruder when I’m trying to change the filament though


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    #18 Shrey, Jan 11, 2018
  19. Geof

    Geof Volunteer Moderator
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    if you watch them while the printer is trying to print can you see any of the axis not turning correctly? Something (either a slicer issue or mechanical) is seeming to be holding up its travel. I could be seeing that wrong in the video but that is what it looks like.
     
    #19 Geof, Jan 11, 2018
  20. Shrey

    Shrey Active Member

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    I think noticed one of the rod was slightly wobbling could that be a cause as well??


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    #20 Shrey, Jan 11, 2018
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