Jump to content
Ultimaker Community of 3D Printing Experts

Strange lines mid-print from finished model when printing one-at-a-time

Recommended Posts

I am using freshly-downloaded Cura 3.4.1.
Trying to slice the 31-day spiral pillbox by LoboCNC (https://www.thingiverse.com/thing:2533058/files), printing one at a time on an Anet A8.

In layer view, on layer 585 (which is one of the layers in the third and final part) I see some really strange lines being drawn from the first part printed to the origin (0,0).
Then on the next layer they disappear?? Only to reappear at layer 601 after all the parts are finished. They are the only thing to happen in layer 601, but for some reason the print says it has 864 layers, although NOTHING gets printed after layer 601.

As I drag the layer view, the lines spontaneously disappear and reappear.
They're highlighted in all sorts of different line types- some are helpers, some are travel, some are inner wall or infill or shell.

What the heck is going on?

(Images attached show the lines, also show that absolutely nothing changes between layers 601 and 826).




Share this post

Link to post
Share on other sites

Well, it's happened again, on a different computer. This time I saved the project file.
Closing and reopening doesn't seem to solve it- when I slice the models again, the weird lines are still there and there are still way more layers than there should be.
I'll just print it all at once, but I should probably report this as a bug, right?
Thanks in advanced



Share this post

Link to post
Share on other sites

Hi @Noga, it looks like it is a bug in the layer view, I see those weird lines too. When I save the gcode and look in another gcode viewer I cannot see those lines. There is still a possible problem with your end gcode because you have G28 X0 Y0 which in the gcode viewer I used shows the nozzle being returned to the left hand front corner straight through the large printed part! Hope this helps.

Share this post

Link to post
Share on other sites

I am not on the version you are on. Try going back a version because this is what I got and it seems to be what you are looking for.



If that has solved it, then it is a bug.


Or, what @smartavionics said.....he is much more knowledgeable than I.

Edited by kmanstudios

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

    • How to 3D print with reinforced engineering materials
      Ultimaker is hosting a webinar where we explain how you can achieve and maintain a high print success rate using these new reinforced engineering materials. Learn from Ultimaker's Product Manager of Materials and top chemical engineer Bart van As how you can take your 3D printing to that next level.
      • 0 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!