Jump to content
Ultimaker Community of 3D Printing Experts
MissDeliana

Outer wall - gap between end and start points?

Recommended Posts

So what I thought was a layer change issue turned out to be an outer wall issue.
I am well aware of the fact that getting rid of the "z seam" is just not going to happen, but surely there has to be a way to make it less noticeable. I've successfully printed with a much less noticeable seam wtih S3D and Slic3r, but there seems to be something about how cura moves from inner walls to the outer wall that just messes it up.

SO here's what I am experiencing. A sort of gap between where the perimeter ends and where it starts. And I experience this issue much mroe severly with Cura than with any other slicer I've tried. I seem to recall that I didn't have this issue in much earlier versions of Cura either, so I wonder if this is caused by the default value of a specific setting that might have been introduced a few versions back?

 

I feel like I've tried everything related to retraction, combing, wall printing order, coasting and wiping and gawd knows what. I'd hate to switch from my favorite slicer just because of this one specific issue. There's gotta be a way to make the end and the start points sorta overlap? I'd much prefer a bit of a blob over this ditch, especially when printing with a nice looking filament that I don't intend to sand and paint afterwards.

 

 

(Sorry for the blurry pic, but it's not easy to get the camera to focus on such small details! Printed with layer height 0.2 so it's not really _that_ tiny, but still!)

seam.png

Share this post


Link to post
Share on other sites
5 hours ago, MissDeliana said:

So what I thought was a layer change issue turned out to be an outer wall issue.
I am well aware of the fact that getting rid of the "z seam" is just not going to happen, but surely there has to be a way to make it less noticeable. I've successfully printed with a much less noticeable seam wtih S3D and Slic3r, but there seems to be something about how cura moves from inner walls to the outer wall that just messes it up.

SO here's what I am experiencing. A sort of gap between where the perimeter ends and where it starts. And I experience this issue much mroe severly with Cura than with any other slicer I've tried. I seem to recall that I didn't have this issue in much earlier versions of Cura either, so I wonder if this is caused by the default value of a specific setting that might have been introduced a few versions back?

 

I feel like I've tried everything related to retraction, combing, wall printing order, coasting and wiping and gawd knows what. I'd hate to switch from my favorite slicer just because of this one specific issue. There's gotta be a way to make the end and the start points sorta overlap? I'd much prefer a bit of a blob over this ditch, especially when printing with a nice looking filament that I don't intend to sand and paint afterwards.

 

 

(Sorry for the blurry pic, but it's not easy to get the camera to focus on such small details! Printed with layer height 0.2 so it's not really _that_ tiny, but still!)

seam.png

There was a similar albeit different question asked in another thread to which I shared I read an earlier post that discussed being able to alter the layer starting points so as to curtail the ugly vertical line.

 

Here is a excerpt from that thread;

 

“It is a setting within the Shell settings group, called Z Seam alignment”

 

Here is information from Ultimaker Cura

 

https://ultimaker.com/en/resources/52343-shell

 

I hope you find success as I agree; you should not have to do corrective post printing work for a vertical ditch furthermore, anything you do will detract from the finished print.

Edited by Shadowman
Additional

Share this post


Link to post
Share on other sites

The issue occurrs once per layer at the starting/ending point of the outermost wall, wether it is all in the same position or not. 

 

It is not at layer change, I suspect it has to do with how it moves from the inner wall to the outer wall somehow.

 

I hope this makes it more clear what I mean, as I don't know how to better describe it. 

Share this post


Link to post
Share on other sites
8 minutes ago, MissDeliana said:

Well, yes, in a way you re right as I intentionally chose to put the seam all in one spot to easier be able to see the issue when tweaking settings to get rid of the issue. 

 

 

Understood; you purposely did this with default settings so as present your concern. 

 

Have you since changed the seam alignment settings and if yes; what are the results?

Share this post


Link to post
Share on other sites

Gotcha

 

As shared; I recall the earlier thread within which folks shared that Cura was “not” good about this when compared to other slicers. The inference was that changes were being made because, like yourself, it is very troubling.

 

You mentioned printing with nice looking materials and want the finish to be as when printed; this I understand and want too. Particularly as I begin using the CC Print Cores and associated materials.

 

Again, I hope that someone from Ultimaker Cura joins this thread.

Share this post


Link to post
Share on other sites
4 hours ago, smartavionics said:

Hello @MissDeliana, could you please save that project (File -> Save) and attach the .3mf file to this thread so I can look at the settings used. Thanks.

 

Hey there! This isn't the same file, I've made a couple of tweaks to suit something else I printed inbetween, but the base issue remains. 

cylinder.3mf

Share this post


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

    • Introducing Ultimaker Cura 3.6 | Beta
      Ultimaker Cura 3.6 | Beta is available. It comes with new features, bug fixes, and UX improvements. We would really like to have your feedback on it to make our stable release as good as it can be. As always, you can download the beta for free from our website, for Windows, MacOS, and Linux.
        • Like
      • 92 replies
    • Print Core CC | Red for Ruby
      Q: For some users, abrasive materials may be a new subject matter. Can you explain what it is that makes a material abrasive when you are not sure which print core to use?
      A: Materials which are hard in a solid piece (like metals, ceramics and carbon fibers) will generally also wear down the nozzle. In general one should assume...
        • Like
      • 30 replies
    • "Back To The Future" using Generative Design & Investment Casting
      Designing for light-weight parts is becoming more important, and I’m a firm believer in the need to produce lighter weight, less over-engineered parts for the future. This is for sustainability reasons because we need to be using less raw materials and, in things like transportation, it impacts the energy usage of the product during it’s service life.
        • Like
      • 12 replies
×

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!