Jump to content

Spiralize - Z seam - Geometry dependant


greens83

Recommended Posts

Posted · Spiralize - Z seam - Geometry dependant

Im really hoping some of the very knowledgeable and helpful people I've come across on here before might be able to help me out with a problem I keep encountering with spiralize.

 

I do a lot of single wall printing using surfaces as geometry and the spiralize setting. Works really well 95% of the time. However on certain models I still get a z seam using spiralize. At first I thought this was the same issue as a previously identified X,Y, small travel inserted on each layer but that is now resolved in Cura.

 

This is definitely related to Z seam (If I tell cura where I want the z seam this issue goes there). It only appears on some models. Plain cylinders for instance never produce this. Here's a screen shot of what I'm talking about:

722175248_Screenshot2022-03-3113_51_46.thumb.png.139f4974357cec5c245b44f363cff9e3.png

 

Smooth contour does something but it still is visible after printing.

1107382379_Screenshot2022-03-3114_22_22.thumb.png.0748a5f9d34417436b4345119b66cfb2.png

 

Things I've observed:

 

It seems to occur more on shorter prints more (i.e. low z height).

 

If I stretch the same model up it will reduce the z seam and eventually disappear when it gets tall enough.

 

However really short cylinders don't produce this problem at all. So its not just the height that creates it.

 

Resolution of mesh has no effect on it.

bezel push fit 2.stl

none of the z seam options get rid of it. (but will move it)

 

Smooth outer contour doesn't get rid of it.

 

 

Any suggestions or input would be hugely appreciated. I need to eradicate the issue as I'm trying to start a business selling products that are heavily dependant on using Cura and spiralize. I am considering trying some other slicers but I don't really want to If I can avoid it.

 

Thanks in advance for anyone who can chime in with suggestions or any experience of this same issue.

 

Also attached is g-code and stl shown.

 

 

UM2E_bezel push fit 2.gcode

  • Link to post
    Share on other sites

    Posted · Spiralize - Z seam - Geometry dependant

    @ahoeben thank you for your reply. Interesting I've not seen this manifold info. I'm not sure this is the problem though. There's no geometry within geometry, its just a symmetrical revolved surface. If I make a cylindrical surface the same dimensions as the part I've previously shown I don't get the same problem.

     

    131197698_Screenshot2022-04-0109_57_01.thumb.png.dbf2eafc30cf8b276dd3535dbf588326.png

  • Link to post
    Share on other sites

    Posted · Spiralize - Z seam - Geometry dependant

    I've also just tried making the geometry a water tight volume/solid rather than a revolved surface. Still the same problem with the z seam. So its not down to it being a surface or non-manifold. Thank you for the suggestion though.1020884701_Screenshot2022-04-0111_14_27.thumb.png.7d03cea74cfea5ee5a7cbdb44bcc6529.png

     

  • 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

      • UltiMaker Cura 5.3 stable released
        In this stable release, Cura 5.3 achieves yet another huge leap forward in 3D printing thanks to material interlocking! As well as introducing an expanded recommended print settings menu and lots of print quality improvements. Not to mention, a whole bunch of new printer profiles for non-UltiMaker printers!
          • Thanks
          • Like
        • 56 replies
      • Here it is. The new UltiMaker S7
        The UltiMaker S7 is built on the success of the UltiMaker S5 and its design decisions were heavily based on feedback from customers.
         
         
        So what’s new?
        The obvious change is the S7’s height. It now includes an integrated Air Manager. This filters the exhaust air of every print and also improves build temperature stability. To further enclose the build chamber the S7 only has one magnetically latched door.
         
        The build stack has also been completely redesigned. A PEI-coated flexible steel build plate makes a big difference to productivity. Not only do you not need tools to pop a printed part off. But we also don’t recommend using or adhesion structures for UltiMaker materials (except PC, because...it’s PC). Along with that, 4 pins and 25 magnets make it easy to replace the flex plate perfectly – even with one hand.
         
        The re-engineered print head has an inductive sensor which reduces noise when probing the build plate. This effectively makes it much harder to not achieve a perfect first layer, improving overall print success. We also reversed the front fan direction (fewer plastic hairs, less maintenance), made the print core door magnets stronger, and add a sensor that helps avoid flooding.
         

         
        The UltiMaker S7 also includes quality of life improvements:
        Reliable bed tilt compensation (no more thumbscrews) 2.4 and 5 GHz Wi-Fi A 1080p camera (mounted higher for a better view) Compatibility with 280+ Marketplace materials Compatibility with S5 project files (no reslicing needed) And a whole lot more  
        Curious to see the S7 in action?
        We’re hosting a free tech demo on February 7.
        It will be live and you can ask any questions to our CTO, Miguel Calvo.
        Register here for the Webinar
          • Like
        • 18 replies
      • UltiMaker Cura Alpha 🎄 Tree Support Spotlight 🎄
        Are you a fan of tree support, but dislike the removal process and the amount of filament it uses? Then we would like to invite you to try this special release of UltiMaker Cura. Brought to you by our special community contributor @thomasrahm
         
        We generated a special version of Cura 5.2 called 5.3.0 Alpha + Xmas. The only changes we introduced compared to UltiMaker Cura 5.2.1 are those which are needed for the new supports. So keep in mind, this is not a sneak peek for Cura 5.3 (there are some really cool new features coming up) but a spotlight release highlighting this new version of tree supports.  
          • Like
        • 29 replies
    ×
    ×
    • Create New...