Jump to content
Ultimaker Community of 3D Printing Experts
  • Sign Up
Sign in to follow this  

strange perimeter problem

Recommended Posts

Posted · strange perimeter problem

so after 5hrs printing my first organic shape object and first time I got support to actually work.. I get this..

http://i177.photobucket.com/albums/w228 ... 000009.jpg

curiously the object is symmetric but this is the other side..

http://i177.photobucket.com/albums/w228 ... 000010.jpg

before another 5hr print, I'm trying to understand what went wrong.. I'd love to hear any theories.. so far I've got:

1) I was printing at 120mm/s - this doesn't really explain the weird pattern or inverse on the other side very well, but Joergen did mention that perimeters suffer at speed, I wonder if this is what he meant..

2) I foolishly set the print order sequence to 'perimeter loops infill'

3) the organic shape has curves more accurate than can be sliced by Cura so rounding errors lead to this effect. This might explain the vertical symmetry. I've never had anything else print with this poor quality an edge but most of what I print has sharp polygonal edges.

4) belts not tight enough, or perhaps some are tighter than others? does it matter if one side is tighter than the other as long as they all sing? do they have to sing the same note?

5) bed not level. but i don't think this would cause this effect.

love to hear your views on this subject - I don't really want to print much slower unless i have to, because 5hrs is already a very long print so 50mm/s is a whole day printing!

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
Sign in to follow this  

  • 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
      • 2 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...