Jump to content

Losing Layer 1 On 2nd Extruder After Dual Color Merge


ffco

Recommended Posts

Posted · Losing Layer 1 On 2nd Extruder After Dual Color Merge

UM3, Cura 2.6 Release. Utilizing the included profiles within Cura (fine-0.1)

When I import each separate stl, I get brims on both models and everything looks good:

5a333c6d26f32_ScreenShot2017-06-26at12_29_27PM.thumb.png.0e61ec0a3d8b73bf59b9aae1fe07f612.png

After merging the models, I lose layer 1 on the second extruder (which includes the brim on the second extruder):

5a333c6d7208b_ScreenShot2017-06-26at12_32_08PM.thumb.png.42d5d0a110d437a9e2eddebcea9e9f63.png

5a333c6d84bf6_ScreenShot2017-06-26at12_32_28PM.thumb.png.74dd632862a74a6d6c258507f64e79f2.png

Am I missing something here or is there an issue?

5a333c6d26f32_ScreenShot2017-06-26at12_29_27PM.thumb.png.0e61ec0a3d8b73bf59b9aae1fe07f612.png

5a333c6d7208b_ScreenShot2017-06-26at12_32_08PM.thumb.png.42d5d0a110d437a9e2eddebcea9e9f63.png

5a333c6d84bf6_ScreenShot2017-06-26at12_32_28PM.thumb.png.74dd632862a74a6d6c258507f64e79f2.png

  • Link to post
    Share on other sites

    Posted · Losing Layer 1 On 2nd Extruder After Dual Color Merge

    When the models merge there must be a slight difference in height. Does everything in the model seem to line up once merged?

    You could try lowering the print into the bed about 0.3 and see if that works.

  • Link to post
    Share on other sites

    Posted · Losing Layer 1 On 2nd Extruder After Dual Color Merge

    I think if you have your two stl files set up correctly, you should not get a brim for the second model. Basically, merging two models means you get a single model which is printed with different sections having different colors... but still, a single model. That model just has one brim. In my experience, you get both extruders laying down filament at the layer 1 level (0.2mm for me) but only one brim (laid down by extruder 1). Watch the Z height during the print the height of the first instance of using extruder 2 isn't at the same height as the first instance of using extruder 1. My guess is that they are the same and you just expected (incorrectly) a brim from extruder 2.

  • Link to post
    Share on other sites

    Posted · Losing Layer 1 On 2nd Extruder After Dual Color Merge

    I think if you have your two stl files set up correctly, you should not get a brim for the second model. Basically, merging two models means you get a single model which is printed with different sections having different colors... but still, a single model. That model just has one brim. In my experience, you get both extruders laying down filament at the layer 1 level (0.2mm for me) but only one brim (laid down by extruder 1). Watch the Z height during the print the height of the first instance of using extruder 2 isn't at the same height as the first instance of using extruder 1. My guess is that they are the same and you just expected (incorrectly) a brim from extruder 2.

     

    It should provide a brim around both items but by only one extruder if they are both on the glass. even if its 2 models merged as 1.

    In the pictures above there is no brim around one item but it also didn't even print the first layer for that item.

    So it should show brim around both and a first layer around both on layer 1.

  • Link to post
    Share on other sites

    Posted · Losing Layer 1 On 2nd Extruder After Dual Color Merge

    I'm guessing it's an issue with this model, but here's the model if anyone wants to try it out on their own to see if they get similar results:

    https://www.thingiverse.com/thing:1936316/#files

    I initially was using the "dual cape_v2", but have also tried some other combinations. Seem to get similar outcome of the feet not touching. I even put supports on, and it didn't seem to build supports under the feet that were in the air which seemed weird.

  • Link to post
    Share on other sites

    Posted · Losing Layer 1 On 2nd Extruder After Dual Color Merge

    Whut wint rong....Need me uh beer..... :p

    Ok, simple fix. Here is what I found. Real quick and easy. And, shows just how a few simple fundamentals goes a loooooong way. First, I noticed in the download file there was a MAX file. Now, MAX likes to work at 0,0,0. And, all pivots should be placed there and oriented in the proper direction (Z-Up) so that it is 'bound' to the same world coordinates that Cura operates in.

    First I loaded the file and each part touched the ground and brimmed real sweet.

    Individually_AllOK.jpg

    But, when merged, they did what you experienced.

    Yup_NotWorkingRightOutOfBox.jpg

    So, I took it into MAX, and moved it all to 0,0,0 because I am very anal that way. Why? Well, it solves 90% of all problems. And, I am very routine bound, but it works, so no complaints from me. Still had the same problem as in the above image.

    So, I took a closer look and ayup, an error in the modeling. The cape actually goes BELOW the feet. So, when merged, it becomes the base and the feet float a bit above the ground plane.

    CapeIsBelowFeet.jpg

    So, back into MAX, moved the verts at the bottom of the cape to the Z Plane 0 which made it even with the feet.

    DarthFeetCapeEven.jpg

    And, now it works. Fundamentals save the day almost all the time. :)

    DarthFxed.jpg

    Now, it would be cruel to not put up the file after all that, but you should almost always assume that a downloaded model is faulty. Why? Because most people do not actually know what they are doing to make things really correctly. Usually, just 'good enough' at best, and truly horrific at worst. It is why I usually model my own stuff from scratch. In a lot of cases, it is easier. But, do not despair, there are some good models out there. Oddly, the ones that have the most lavish attention on them are the ones that are about outlandish female anatomy.

    Just remember who showed you some luv ;) LOL

    Darth Fixed

  • Link to post
    Share on other sites

    Posted · Losing Layer 1 On 2nd Extruder After Dual Color Merge

    You da man! Thanks. I will check out MAX too.

  • Link to post
    Share on other sites

    Posted (edited) · Losing Layer 1 On 2nd Extruder After Dual Color Merge

    You da man!  Thanks. I will check out MAX too.

    [

    ]Ohhh,,,uh uh uh garsh [/
    ]

    Actually, I would look at free alternatives first unless you have a great budget. Although I do like MAX, it is like having a relationship with the wife (MAX), but you hate the mother-in-law (Autodesk). And that ol' battleaxe has made me look at alternatives and start to step out. I just used it because I am most familiar with it.

    Edited by Guest
  • 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

      • S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
        (Sorry, was out of office when this released)

        This update is for...
        All UltiMaker S series  
        New features
         
        Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
          • Like
        • 0 replies
      • Ultimaker Cura 5.6 stable released
        Cura now supports Method series printers!
         
        A year after the merger of Ultimaker and MakerBotQQ, we have unlocked the ability for users of our Method series printers to slice files using UltiMaker Cura. As of this release, users can find profiles for our Method and Method XL printers, as well as material profiles for ABS-R, ABS-CF, and RapidRinse. Meaning it’s now possible to use either Cura or the existing cloud-slicing software CloudPrint when printing with these printers or materials
        • 48 replies
    ×
    ×
    • Create New...