Jump to content
Ultimaker Community of 3D Printing Experts
mechamecha

Target specific areas of model for adaptive layers

Recommended Posts

I've been really impressed with Cura's development over the past year or so. It has become my default slicer because it gives me so much control over just about every print setting, and its GUI is so much more intuitive than its competitors.

 

Adaptive layers has been a great new feature, but I've found that its usefulness is limited to fairly symmetrical models without a lot of detail, or if detailed areas are isolated to their own vertical spaces within a model. Adaptive layers would be so much more useful if there could be a way to target specific areas on a model for Cura to include in calculating the step-down of layer thickness. (Or, conversely, to target specific areas for Cura to exclude when it calculates that.)

 

The way that the new "support blocker" tool works seems pretty nice; maybe "adaptive layer include/exclude" could work in a similar manner?

Share this post


Link to post
Share on other sites

There is definitely a visible difference between 0.05 mm layers vs. 0.25 mm, and banding is quite evident when very thin layers are unnecessarily added to fairly straight vertical surfaces. Also, I'd prefer not to waste valuable printing time adding very thin layers to details that are less important to me on a model. I'd be very surprised if I were the only person wishing that the adaptive layers feature had slightly more versatility.

 

377952559_ScreenShot2018-05-23at4_11_22PM.thumb.png.ef1a3a30899491e98af68d28711fa1ef.png

 

For example, if I were much more concerned about eliminating the visible banding on the exterior of this very simple object than having the arched opening printed as nicely as possible, it certainly would be nice to tell Cura to ignore the arched opening when calculating adaptive layers. It would reduce the print time as well. Obviously the problem is exacerbated on more complex models.

Edited by mechamecha
Comments added to posted screen capture

Share this post


Link to post
Share on other sites

Boy, you completely misunderstood me.

 

The difference I referred to in my previous comment is the difference of 2D print parts (including infill, shell and etc) between layers. In other words, the parts in each layers must be exact the same if you want to merge two layers in adaptive layers algorithm.

 

Adaptive layers are for:

  • saving print time
  • prevent slicing from missing key feature due to numerical error when slicing layers

 

Share this post


Link to post
Share on other sites

Regardless of the implementation of other slicer, to merge two layers you must make sure the parts (inset and infill) must be the same. Otherwise, they can't be merged it together.

 

You can't do it by human eyes. Neither do you want to pick which layers to merge manually. It is a nightmare.

Share this post


Link to post
Share on other sites

Adaptive layers is to let slicer figure out the variable layer height based on the print content of each layer. It is undesirable for majority users to figure out which two layers are the same and then merge them. I don't think it is intended to solve your banding problem. Find a smaller nozzle that may have a finer print to solve the banding problem you mentioned.

 

I wrote a matplotlib part viewer tool here, which draw islands layer by layer from the intermediate output I extract from Cura 15.04. You can take a quick look of UI and imagine how bad it is when you make your merging choices for a tall print, where might contain thousands of layers. 

 

 

part_on_layer.png

Edited by Ricky

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.
      • 5 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!