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Unresolved Printed Object Different Height That 3d Model

Discussion in 'Troubleshooting' started by CEchols, Jan 22, 2015.

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  1. CEchols

    CEchols Member

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    Ok so I have flashed the firmware with the version from the link you provided for the 8mm rod. That seems to have fixed the height issue, but now the printer is acting strange when it comes to support material. The image below shows something I printed and it printed support material for the first overhang that comes out 90 degrees from the side, but not for the second one where you see all of the drooping. I have played with the overhang threshold with no luck. Any idea what could have happened? Is this a firmware issue? It seems like it would be an issue related to Matter Control or the MatterSlicer.

    Link to image...

    https://drive.google.com/file/d/0B2v9a8uJWOQRUk80VGVPNEY3VzlvZjBBNFpwYlN2ZzZRSm5N/view
     

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    #21 CEchols, Jan 27, 2015
    Last edited by a moderator: Jan 27, 2015
  2. Mike Kelly

    Mike Kelly Volunteer

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    Can't see the picture but I would suggest using Slic3r or Cura Engine.

    Make sure it's set to make support everywhere
     
    #22 Mike Kelly, Jan 27, 2015
  3. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Not likely a firmware issue.

    Try different slicers. The ability of a slicer to generate usable support material varies -- a lot.
    Some of the free slicers are better at certain types and models than others.
     
    #23 mark tomlinson, Jan 27, 2015
  4. CEchols

    CEchols Member

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    Sorry I should have mentioned that this is my second time printing one of these. I printed the first with Matter Slicer before the firmware change and it printed support material where needed.
     
    #24 CEchols, Jan 27, 2015
  5. Mike Kelly

    Mike Kelly Volunteer

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    Support has nothing to do with firmware.
     
    #25 Mike Kelly, Jan 27, 2015
    3 people like this.
  6. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Your changes in height have affected the slicer.
    Your height is now correct, and the slicer problems are just showing up now :)

    All of these things interact.
     
    #26 mark tomlinson, Jan 27, 2015
  7. CEchols

    CEchols Member

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    So there is no setting in matter control I could tweek? I am printing another copy of this item with sli3cer now to see how that does.
     
    #27 CEchols, Jan 27, 2015
  8. CEchols

    CEchols Member

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    Ok quick update I printed this model with slic3r and honestly it is terrible. There are boogers and stringers everywhere and it added some strange peices to what printed out that I cannot figure out why it would have done so...
     
    #28 CEchols, Jan 27, 2015
  9. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Can't personally speak for either of those although I did use slicer for quite a while, it never generated reliable and removable supports.

    edit: and at that time when I tried Cura it just welded the supports to the model
     
    #29 mark tomlinson, Jan 27, 2015
  10. CEchols

    CEchols Member

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    That is the experience I am having right now. I wonder what the deal is with that it seems like if that is just how they work the if supports are needed then they are unuseable...
     
    #30 CEchols, Jan 27, 2015
  11. CEchols

    CEchols Member

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    What does Overhang Threshold mean? It is set to 40 degrees currently.
     
    #31 CEchols, Jan 27, 2015
  12. CEchols

    CEchols Member

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    Actually I think I found the issue... The Support Everywhere box was unchecked. I checked it and the supports are showing up again!
     
    #32 CEchols, Jan 27, 2015
  13. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Pretty much. For anything complicated I had to use Simplify to get working supports. They are an order of magnitude better.
    Hopefully you can get supports that are acceptable for your work.
     
    #33 mark tomlinson, Jan 27, 2015
  14. Mike Kelly

    Mike Kelly Volunteer

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    I've found Cura generates the best supports of the free software
     
    #34 Mike Kelly, Jan 27, 2015
  15. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    With the recent builds of Cura I heartily concur and that is a huge change from earlier releases where it cheerfully made bricks using the support material. ;)
     
    #35 mark tomlinson, Jan 27, 2015
  16. Mike Kelly

    Mike Kelly Volunteer

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    Eh I kinda like the bricks, but then again I print support with HIPS :)
     
    #36 Mike Kelly, Jan 27, 2015
  17. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Hah! On the Robo I am stuck using fingers to remove them.
    Do have a Replicator 2 here that we use dissolvable filament for supports.
    That is for more complicated stuff, but it does work nice.
     
    #37 mark tomlinson, Jan 27, 2015
  18. Mike Kelly

    Mike Kelly Volunteer

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    Yeah I don't dissolve it out anymore. Just breaks away cleanly and if i need to dissolve it I can, but generally it's not needed.
     
    #38 Mike Kelly, Jan 27, 2015
  19. CEchols

    CEchols Member

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    Ok so the hight issue is resolved. I have noticed another size issue though. Ive designed a part in CAD where it is in essence an arch where the side are 2.1 mm apart. The printed part's sides are only 1.7 mm from each other Is this an unrealistic expectation, or do I have another setting issue?
     
    #39 CEchols, Jan 29, 2015
  20. Mike Kelly

    Mike Kelly Volunteer

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    Coluld be from ribbing causing inaccuracy. Picture would be appreciated
     
    #40 Mike Kelly, Jan 30, 2015
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