Jump to content
Ultimaker Community of 3D Printing Experts

Settings - starting from scratch with the UM3


Recommended Posts

Posted (edited) · Settings - starting from scratch with the UM3

Hi guys,

 

I'm a little bit disappointed with the print quality of my UM3.

I'm new to the 3D printing topic (since start of this year) and I'm looking for some experienced UM3 professionals here. :)

 

I made some adjustments in the settings because of bad infill and other issues I have no name for.

But now I want to set everything to default and start from scratch together with your help guys.

 

I will print a testobject with default settings and make pictures to identify the problems.

Then I want to get rid of the problems one at a time.

 

My first question before we start: What test object should I use?

Edited by Dragon2781
  • Link to post
    Share on other sites
    • Replies 56
    • Created
    • Last Reply

    Top Posters In This Topic

    Top Posters In This Topic

    Popular Posts

    I just got up and having a caffeine boost. So, maybe can answer in a bit. But here are some pics with very tiny details. I am using, in this case, ColorFabb Shining Silver and Matterhackers clear. Som

    Okay so I just looked at your bench photos.  In the hull there are two slits - those look like underextrusion - either the Z moved too far for those layers or a filament tangle or...  not sure what.

    A suggestion: if it isn't a settings problem, then maybe it is a hardware problem?   @Dragon2781 Do you have another AA printcore you can swap to make your tests again? Maybe the printcore h

    Posted Images

    Posted · Settings - starting from scratch with the UM3

    I like these tests and ran them first on my printer. Well, my first was a Batman statue because, well, it was Batman!! Need I say more?

     

    Test 1

     

    Test 2

     

    Test 3

     

    Test 4

     

    They may seem redundant, but each one is different and each one told me something different about my printer and settings. The overhang tests are very good to find the limit of overhang that will print well and with different materials. Some are for thin wall tests with numbers for calibrations, bridging, etc.

     

    All should be printed without support or it will invalidate the overhangs.

  • Link to post
    Share on other sites
    Posted (edited) · Settings - starting from scratch with the UM3

    PRINT #00

    Default Cura 3.2.1 Settings

    Auto Leveling ON (Always)

    Latest Testing-Firmware installed

     

    Cube 100% scale

    Printing time 00h32min

     

    Benchy 50% scale

    Printing time 00h30min

     

    Settings.png

     

    Now I like to identify and name the problems.

    Maybe you find even more than me.

     

     

    Cube_01_Bad_Infill:

    I identified a really bad Infill. It's holey like a beehive.

    Cube_01_Bad_Infill.jpg

     

    Cube_02/03_Corners:

    All the corners arround all sides are bulging.

    Cube_02_Corners.jpg

    Cube_03_Corners.jpg

     

    Cube_04_Wobble:

    On the opposite side of the X is a strange wobble.

    Cube_04_Wobble.jpg

     

    Cube_05_Lines:

    There are two lines arround the cube. Maybe missing layers?

    Cube_05_Lines.jpg

     

    Benchy_01_Stringing:

    Some stringing, I think it gets worse when I scale it to 100%

    Benchy_01_Stringing.jpg

     

    Benchy_02_Artifacts:

    On one side there are strange artifacts. It's hard to say but I think that they are all over the Benchy.

    Benchy_02_Artifacts.jpg

     

    Benchy_03_Offset:

    The whole chimney has like a crack and is moved over.

    Benchy_03_Offset.jpg

    Edited by Dragon2781
  • Link to post
    Share on other sites
    Posted · Settings - starting from scratch with the UM3
    28 minutes ago, Dragon2781 said:

    Cube_02 / 03_Corners:

    Alle Ecken rundherum sind gewölbt.

     

    Here was the same problem

     

    Even the same part. :|

     

  • Link to post
    Share on other sites
    Posted · Settings - starting from scratch with the UM3

    Not sure on this one but i think changing the scale on benchy kinda defeats the purpose, if you scale it down then some of the details of the model that are suppose to be tested don't get printed hence why you may be seeing artifacts, plus the material doesn't get the proper amount of cooling time.

     

    The cube looks like it's picking up a lot of ringing and echo's, I haven't tried on the UM machines but can the accel and jerk be lowered? That's what I would do if this was one of my repraps. Maybe try dropping the speed over all, try a cube at 50 and see how it turns out.

  • Link to post
    Share on other sites
    Posted · Settings - starting from scratch with the UM3

    I actually printing the Benchy in 100% but it takes 2h....

  • Link to post
    Share on other sites
    Posted · Settings - starting from scratch with the UM3

    Yea, i think that's about the same time my UM3 takes on the normal profile.

  • Link to post
    Share on other sites
    Posted (edited) · Settings - starting from scratch with the UM3

    Still default settings

     

    Benchy 100% scale

    Print time 02h02min

     

    I still have this strange artifact on both sides of the ship.

     

    Benchy_04_Artifacts.jpg

     

     

     

    I have a minimum of stringing, that is ok.

    Benchy_05_Strining.jpg

     

     

    I really hate this ghosting effect. What can I do about that?

    Benchy_06_Ghosting.jpg

    Edited by Dragon2781
  • Link to post
    Share on other sites
    Posted · Settings - starting from scratch with the UM3

    Try turning down the acceleration settings, I know it's in Cura somewhere, I'm at work currently and can't tell you exactly where since i'm not in front of cura

  • Link to post
    Share on other sites
    Posted · Settings - starting from scratch with the UM3

    @pdrinkut this are the default acceleration settings. What should I do exactly?

    acceleration.png

  • Link to post
    Share on other sites
    Posted · Settings - starting from scratch with the UM3

    For the infill, which can be bad on basic settings, turn down the infill print speed. That will get rid of the honeycomb effect you mention. Try to match the wall speed(s) in genereal.

  • Link to post
    Share on other sites
    Posted · Settings - starting from scratch with the UM3
    18 minutes ago, kmanstudios said:

    For the infill, which can be bad on basic settings, turn down the infill print speed. That will get rid of the honeycomb effect you mention. Try to match the wall speed(s) in genereal.

    OK I'll do that and start a new print with the cube.

     

  • Link to post
    Share on other sites
    Posted · Settings - starting from scratch with the UM3

    On other printers I usually take my accel down to 1000 then do a test print and see what it looks like and make more changes from there.

  • Link to post
    Share on other sites
    Posted (edited) · Settings - starting from scratch with the UM3

    PRINT #01

    Lower Print speed

     

    Cube 100% scale

    Print time 00h34min

     

    Benchy 100% scale

    Print time 02h07min

    Settings.png

     

    I still have a bad infill. I think the holes are mostely gone but the stringing is huge.

    I can not say what is infill and what is strining. Why is this only on the inside?

    Cube_01_BadInfill.jpg

     

     

    The corners are still bulging, no change there. :(

    Cube_02_Corners.jpg

     

    The wobble is kind of gone but is still have waves in the surface.

    Cube_03_Corners.jpg

    Cube_04_Marks.jpg

    Cube_05.jpg

     

     

    The Infill of the Benchy looks the same as the cube. Very stringy...

    Benchy_01_BadInfill.jpg

     

    There are some diagonal lines I have no idea how to fix that.

    Benchy_02_Lines.jpg

     

    There are pimples everywhere on the ship. What is that?

    Benchy_03_Pimples.jpg

     

     

    Benchy_04.jpg

    Benchy_05.jpg

    Benchy_06.jpg

    Edited by Dragon2781
  • Link to post
    Share on other sites
    Posted (edited) · Settings - starting from scratch with the UM3

    I took a look at your settings and you should unhide the rest of the speed settings so that you get direct control over every individual speed setting. This is what my speed settings look like:

    AllSpeedSettings.thumb.jpg.4d48774806f57c02e16534116a5f5183.jpg

    You can see the highlighted area that I was referring to. If you compare your speed settings to the ones I highlighted, your infill speed is still 150% of your wall speed setting. The ones I highlighted are of equal value. This should make your infil print the same as the wall. I have piddled with most of these, though not all. As a matter of fact, the first thing I did when starting to evaluate Cura was to unhide all the settings. But, that is just me. I am kind of a control freak when it comes to my software. I do not always get it right, but it helps me understand all the relationships. It also lets me see what happens when I make one change to see what Team Cura's algorithms are adapting along with those changes. They seem to have identified a great deal of mathematical relationships, but still give you the opportunity to override them to account for different printers and materials. Even the same material, from different brands or different colors can behave differently enough that small changes can affect your print. I have PLA that prints nicely at 195°C and others between that and 220°C.

     

    Also, this may be me, but the black material is hard to really get a good look at things in certain photos. Some of it shows the flaws very well.

     

    Edit: Oh and the striping seen through the walls would be, I would bet, infill showing through the wall. But, to be honest, I have never printed a benchy. I know...heresy, right? All sorts of other tests, but never a benchy..... ¯\_(ツ)_/¯

    Edited by kmanstudios
  • Link to post
    Share on other sites
    Posted · Settings - starting from scratch with the UM3

    @kmanstudios thank you for your huge post!

    I'm the guy who wants to keep it simple. In my point of view there are two kind of settings. Settings depending on the material and settings depending on the object.

    When I'm satisfied with my settings I will save them in a custom profile and show only the settings that are object related (support, Z seam, infill etc.)

     

    I've chosen the black PLA because it is the one I had most problems with. The glance shows the problems better than dull surfaces.

     

    I will adjust my infill speed again. Your travel speed is 250. Isn't that to much? I fear the head will over shoot the position he have to go to...

  • Link to post
    Share on other sites
    Posted (edited) · Settings - starting from scratch with the UM3

    I am not sure if that is too fast. It is the default and it does not seem to give me troubles. I do adjust print speeds, but have never touched the travel speed to be honest. And again, being honest, I am not experienced enough to say whether or not it affects things as you are experiencing. But so far, I am getting very delicate parts doing ok for their geometry and orientation. I will post a pic late on of what I mean. It is 2:30 AM and I got up to take some ibuprofen for a headache. Bit, I will post in the morning.

     

    Edit: Oh, and I get that about closing it up after nailing the specifics. But I am still playing with things every now and then and trying to learn all those little controls. So many to twiddle. :) That is just me though :) I did not know how much you were familiar with all the settings so I made that image just to illustrate all the goodies that are hidden.

    Edited by kmanstudios
  • Link to post
    Share on other sites
    Posted (edited) · Settings - starting from scratch with the UM3

    PRINT #02

    Lower Acceleration

     

    Benchy 100% - 02h35min
    Cube 100% - 00h43min

     

    Settings.png

     

     

    Strange ghosting arround the X and Y of the cube.

    20180217_083133.jpg

    20180217_083148.jpg

     

    The corners are a little bit better now but still you can see the bulging.

    20180217_083156.jpg

    20180217_083214.jpg

     

    Benchy looks ok.. I think the little pimples are the Z seam at random setting.

    I will change that to the sharp corner setting

    20180217_083314.jpg

    20180217_083328.jpg

    20180217_083337.jpg

    Edited by Dragon2781
  • Link to post
    Share on other sites
    Posted · Settings - starting from scratch with the UM3

    What can I do about this ghosting?

  • Link to post
    Share on other sites
    Posted (edited) · Settings - starting from scratch with the UM3

    PRINT #03

     

    Even lower Infill Speed and even lower Acceleration

     

    Cube 100% - 00h46min
    Benchy 100% - 02h41min

    Settings.png

     

    Infill is now acceptable. When I get lower then the overall print time is slow as fu**

    20180217_084531.jpg

     

    I still have this X and Y ghosting effect. What can I do???

    20180217_101034.jpg

    20180217_101104.jpg

    20180217_101049.jpg

     

     

    On the Benchy I have the diagonal lines. The walls are thin on that part of the ship. There are no infill lines because it's filled completely.

    20180217_121522.jpg

     

    Why do I have that artifacts? This has to be with the Z seam alignement. When I set it to random then I get this pimpels everywhere.

    When I set it to sharp corner then I get this artifacts on both sides of the ship...

    20180217_121444.jpg

    20180217_121513.jpg

     

    20180217_102151.jpg

    Edited by Dragon2781
  • Link to post
    Share on other sites
    Posted (edited) · Settings - starting from scratch with the UM3

    What setting should I change?

     

    - Artifacts on both sides of the ship or pimpels everywhere when I change the Z seam alignement.

    - Ghosting effekt on the X and Y of the Cube and I think the diagonal lines on the Benchy are the same effekt.

     

     

     

    Edit: I also made a little stringing test.... I don't know, is this acceptable for a 3.6K machine?

    20180217_123311.jpg

    Edited by Dragon2781
  • Link to post
    Share on other sites
    Posted · Settings - starting from scratch with the UM3

    I just got up and having a caffeine boost. So, maybe can answer in a bit. But here are some pics with very tiny details. I am using, in this case, ColorFabb Shining Silver and Matterhackers clear. Some of the photos are not great, but you get the idea of detail. The X-Wing and Falcon are from Thingiverse. I made the Enterprise and Jupter II and the snowflake (fractal). Grey ornaments are 3" or 76.2mm at longest axis. All were printed vertically as shown here:

    Printersetup.thumb.jpg.7a741171e1fb8578d6b2bceb9fb2b7a5.jpg

    Enterprise.thumb.jpg.1dc8a955dcbca1685c13bf9c1fa10602.jpgfalcon.thumb.jpg.c39f7a6eacd7666107302f3d144385e8.jpg

    The X-Wing 'prongs' could use a little clean up, but dang, they are about the size of a toothpick. I did have to beef them up just to get them to sample during the slicing.

    xwing.thumb.jpg.e48f89c2474dbddda5756f17894780f7.jpg

    The Jupiter II was so fine that it even showed the lines in the original mesh.

    jupiter2a.thumb.jpg.42c9df48a00de0235f05daf789335e01.jpg

    The layer lines go horizontally. The circular pattern is the actual mesh. I could have made it a bit more detailed. But once it is painted, you will see neither.

    jupiter2b.thumb.jpg.9f78bc6c1c5fa066e47c6ff2645313b6.jpg

    The snowflake is so thin it actually is one wall thick on those thin parts. Some of the ornaments I have made are retraction hell. But this one was not so bad. It is about 2" or 50.8mm.

    snowflake.thumb.jpg.0321968383ab7ad2a844551199874aeb.jpg

    All prints were made with PVA supports too.

     

    Now, I posted these because they did not have much stringing and printing long thin things like the nacelles of the Enterprise and the prongs on the X-Wing are very problematic. In all of these, all I did was lower temp to 195°C, with everything else pretty much at default for PLA. Infill was the new Tri-Hexagon. It is my new Ludwig Van of infill. :)

     

    So, I am thinking that if the black is giving you the most issues, it may be the material itself. And, to be honest, I have never had the ghosting such as your pics show. That is unknown to me. Sorry.

    • Like 1
    Link to post
    Share on other sites
    Posted · Settings - starting from scratch with the UM3

    Nice results I agree :)

  • Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now

    • Our picks

      • Talking additive | The 3D printing podcast
        Why should we be the only ones asking questions? Join us and ask Jabil all your questions on September 22nd 5pm CET
          • Like
        • 3 replies
      • Ultimaker masterclass: Optimizing your Ultimaker Cura workflow
        Save your seat for either broadcast on September 23.
        What will you learn?
        · Best practices for iterative print preparation and every lesson you should learn from each print
        · The right way to use per-object settings and when they are most useful
        · Easy-to-use resources for anyone who wants to develop their own printer definitions, plugins, or print profiles
        · How to optimize print profile settings and whether to “keep” or “discard” changes
        · When is the right time to export your drawing from CAD? (Based on Ultimaker Cura’s surprising power as 3D control software)
        · And a whole lot more tips and tricks!
         
        How can I join?
        This free masterclass will take place twice:
        1. 11am CEST (5pm SGT, 5am EDT)
        2. 5pm CEST (11am EDT, 8am PDT, 11pm SGT)
          • Like
        • 0 replies
      • Do you use 3D printing at work? Let us know
        It doesn't matter if you are using 1 Ultimaker or 10, there is inspiration in everything. We're looking for ...
        • 1 reply
    ×
    ×
    • Create New...