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Unresolved First layer Wavy

Discussion in 'Troubleshooting' started by Toro1966, Jul 29, 2016.

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  1. Toro1966

    Toro1966 Active Member

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    Here are the latest with Geof's FFF installed. I turned the retraction up slightly to see if that fixes some of the stringing (set it from 1.4 to 2.0). I also changed the Z offset from -.74 to -.7. I am printing a new set with those settings to compare to these.
    [​IMG]
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    #61 Toro1966, Aug 10, 2016
  2. Toro1966

    Toro1966 Active Member

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    I also think I may need to adjust the extrusion multiplier based on the sides. Thoughts? I am thinking it needs to come down. It was at .98 for that print.
     
    #62 Toro1966, Aug 10, 2016
  3. Toro1966

    Toro1966 Active Member

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    Geof - Would I need to adjust any of your speeds in your FFF if I switch to High quality? Or do you have a separate FFF for that?
     
    #63 Toro1966, Aug 10, 2016
  4. Geof

    Geof Volunteer Moderator
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    Looks like your temps may be a little hot causing that melting. You could also tweak the min layer time in the cooling tab.

    I always use the same speeds regardless of layer height. Occasionally I'll need to slow it down a bit
     
    #64 Geof, Aug 10, 2016
  5. Toro1966

    Toro1966 Active Member

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    Thanks. I just dropped it a couple of degrees. We'll see how that goes. What are the symptoms of too high or too low a print speed? In other words, how do you know when you need to increase or decrease the speeds?
     
    #65 Toro1966, Aug 10, 2016
  6. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    That will cure the melty at the top issues.
     
    #66 mark tomlinson, Aug 10, 2016
  7. Geof

    Geof Volunteer Moderator
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    I determine speed by quality needs. If it doesn't look perfect for my standards I slow it down
     
    #67 Geof, Aug 10, 2016
  8. Toro1966

    Toro1966 Active Member

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    Ok - so I tried my hand at a Marvin and it has some issues. Here are the pics. It definitely has a few issues. Thoughts on what I can do to make it nicer and cleaner? The settings I used were:
    S3D
    Robo3D Strawberry filament
    Temp: 198/60
    Extrusion Multiplier: .98
    Quality: High
    Layer Height: .05
    Infill: 25%
    No Supports
    Z Offser: -.58
    Default Printing Speed: 2700mm/min
    Retraction: 2.50
    Increase fan speed for layers below 10 sec
    [​IMG]
    [​IMG]
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    [​IMG]
    [​IMG]
     
    #68 Toro1966, Aug 13, 2016
  9. Geof

    Geof Volunteer Moderator
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    It looks very hot. Id drop temp a bit and set your minimum layer time in the cooling tab.
     
    #69 Geof, Aug 13, 2016
  10. Toro1966

    Toro1966 Active Member

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    What about the holes in top and bottom?
     
    #70 Toro1966, Aug 13, 2016
  11. Geof

    Geof Volunteer Moderator
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    Start with the heat issues, print, tweak, print lol. If you change to much you may get lost
     
    #71 Geof, Aug 13, 2016
  12. Toro1966

    Toro1966 Active Member

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    Here is a video of the printing. A couple of things that I don't like but don't know how to fix.
    1: Looks like the figure is spongy - meaning when it prints a layer, it pushes down on the previous layers. Is that normal?
    2: There is a spot towards the back it doesn't seem to like to fill.

    I did change the temp to 195
    <iframe width="1280" height="720" src="" frameborder="0" allowfullscreen></iframe>
     
    #72 Toro1966, Aug 13, 2016
  13. Geof

    Geof Volunteer Moderator
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    Looks much to fast for something that small. Print 2 or 3 at a time or cut your print speed n half.
     
    #73 Geof, Aug 13, 2016
  14. Toro1966

    Toro1966 Active Member

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    So where would I change that specific speed and what would you recommend?

    Sent from my SAMSUNG-SM-G935A using Tapatalk
     
    #74 Toro1966, Aug 13, 2016
  15. Geof

    Geof Volunteer Moderator
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    Under the other tab. Default printing speed. Then set the cooling tab minimum layer time to 30 sec.
     
    #75 Geof, Aug 13, 2016
  16. Toro1966

    Toro1966 Active Member

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    Got the speed. For the cooling is the one that says adjust printing speed for layers below _? Or the one that says increase fan speed for layers below_? Because if it is the first one, it is already at 15 sec. The second one is at 20sec. It's the file you uploaded.

    Sent from my SAMSUNG-SM-G935A using Tapatalk
     
    #76 Toro1966, Aug 13, 2016
  17. Toro1966

    Toro1966 Active Member

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    Also, what should I set the speed to? I know where to enter it, just not what to put it to. It's currently at 3600mm/sec. I have also printed one at 2400mm/sec.

    Sent from my SAMSUNG-SM-G935A using Tapatalk
     
    #77 Toro1966, Aug 13, 2016
  18. Geof

    Geof Volunteer Moderator
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    Those are mm/minute. Cut the number in half. As far as cooling move that 15 to a 25 or 30. My printer has really good dual.cooling fans ducted so my minimum time req. Is very low. Stock i had to set it at between 30 and 40. Also rotate your marvin so the face is on the part fan side :)
     
    #78 Geof, Aug 13, 2016
  19. Toro1966

    Toro1966 Active Member

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    Many thanks Geof!

    Sent from my SAMSUNG-SM-G935A using Tapatalk
     
    #79 Toro1966, Aug 13, 2016
  20. Geof

    Geof Volunteer Moderator
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    No problem let me know how it goes
     
    #80 Geof, Aug 13, 2016
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