curasurf
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Posts posted by curasurf
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Is it possible to specify a cutom profile to "Modify settings for overlaps"? Either with v4 or v5. Thanks!
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@ahoeben OK. Thank you!
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Cura v.4.8.0. Thank you!
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I have several custom profiles with different Support Overhang Angle. When I switch profiles, the overhang red mark does not update immediately. To force it update, I need to modify the Support Overhang Angle to a new value.
It would be great if the overhang red mark would update automatically after switching custom profiles. Thanks!
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On 3/9/2021 at 7:00 PM, fvrmr said:Quote
My guess is: Infill Layer Thickness is always rounded to be a multiple of the transient layer height. Is this correct?
Hi @curasurf
That's correct!
Hi @fvrmr My test seems to suggest that that's wrong. In the mode of adaptive layers, Infill Layer Thickness seems to be is always a fixed times of the transient layer height, but NOT rounded to be a multiple of the transient layer height. Are you sure?
For example,
Layer Height (set, fixed) = 0.2mm
Infill Layer Thickness (set, fixed) = 0.5mm
ROUND(0.5/0.2, 0)=3
When the transient layer height is 0.3mm,
the transient Infill Layer Thickness = 0.3mm×3 = 0.9
In other words, the TIMES (3), or the number of combined infill layers, would be kept constant for all the layers! This causes certain serious problem for the layers for biggest layer height.
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Could you experts tell me in what language the formulas are defined in fdmprinter.def and other .cfg files? Python? Thank you!
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10 minutes ago, CarloK said:
Do you have to adapt the default settings often? And when you change them, what's your motivation for deviating?
Topography Size is adjusted often. The smaller Topography Size, the better quality, the smaller layer height, the longer printing time.
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1 hour ago, nallath said:
Cura assumes that Z is up, but this is not the case for some CAD software.
Until now, when I use S3D (and many other STL-handing tools) to import STL files exported from some CAD software, I never found the STL models displaced. This seems to mean that for most STL files exported by most CAD softwares, the position and orientation can be handled correctly.
There might be something wrong for STL models exported by 10% (?) CAD softwares. But if it's OK for 90% STL models, it's seems be wortwhile to do something.
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7 hours ago, CarloK said:
Since you use it often, what do you think of the default settings for the Adaptive Layers?
In my understanding,
1. Layer Height ± Maximum Variation
The range of layer height need to be defiine according to the overhang condition of a model
2. Variation Step Size
This is only for the transition of different layer heights. It can simply be set at the default value.
3. Topography Size
This is the key setting. It means the distance at which every two neighboring layers are shifted from each other in the X/Y plane. It determines the quality of all the overhang walls. The smaller Topography Size, the better quality, the smaller layer height, the longer printing time.
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I tried to calibrate settings for printing overhang walls and found something difficult to understand.At Layer Height = 0.2 and Line Width = 0.4, the LARGER Top/Bottom Layers value is, solid layers would appear along tilt walls of LOWER overhang angle.Could you kindly explain how Cura engine handles this? Hope I made the question clear enough. Thank you!
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1 hour ago, nallath said:
Please post feature requests on github. It's a bit hard for us to keep track of it otherwise.
I'm sorry to say it's problematic for me to access github. Thanks
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1 hour ago, nallath said:
Because STL doesn't define what the 0,0,0 point is with respect to the build plate.
In my understanding, STL does have a definite 0,0,0 point. I suggest Cura add a button to "restore" the original "postion" and "transformation" of STL models. All the information is there, amd what need to be done is adpating it to the buildplate coordinate system. This would definitely make many new users easier to start their Cura journey.
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After I get enough understanding of exactly how Adaptive Layers works, it became almost immediately indispensable for me --- only this one funcionality is enough to make Cura the ONLY slicer for FDM.
It seems to be odd that there are very few discussions about adaptive layers and it's still put in the experimental section.
I wonder how many people use adaptive layers in their daily printing jobs. Thanks a lot for sharing!
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34 minutes ago, mariocoppola said:
Hi all,
do you guys know why cura changes the position of a stl file? I export from Rhino and it is perfectly centrated in the 0,0,0 point, but in Cura it will go in another point of the plate. Why??
No why. That is the way Cura works.
In most cases Cura simply forgets the absolute position in a stl file. Fortunately, the function Merge Models can restore the relative positions of several models imported from different stl files.
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In my models, I generally need to set Top/Bottom Layers = 3 to make the overhang walls to be without gaps. But I don't need the topmost solid layers, and hope the models to be open at the top with infill stucture exposed.
I tried using a modifier mesh and set it to Top/Bottom Layers=0, but new solid layers would be generatated immediately below the modifier mesh.
Is there any workround or trick to replace the topmost solid layers with infill?
Is it possible to add a post-processing script to simply stop printing upon starting to print the topmost solid layers.
Thank a lot for your suggestions!
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To speark frankly, sometimes it's really painful to read these color schemes. The color bar is really too short and too crowded.
Hope it can be improved. Thanks!
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@ahoeben Are you its creator? Thank you!
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16 hours ago, fvrmr said:
Hi @curasurf
That's correct!
Hi @fvrmr Sorry for another question:
In most profiles, Infill Layer Thickness is calculated to be equal to Layer Height.
In my understanding, the calculation above happens ONLY at the start of printing. If Use Adaptive Layer is enabled, on each layer, Infill Layer Thicknes is still fixed at the initial value, and the transient infill layer thickness is from rounding the initial value of Infill Layer Thickness, but not the transient layer height.
Is this correct? Thank you!
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@fvrmr Thank you for your confirmation!
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have a look at this file:
C:\Program Files\Ultimaker Cura 4.8.0\resources\definitions\fdmprinter.def
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How would Cura handle it when Use Adaptive Layers is enabled and Infill Layer Thickness is set to a fixed value (not calculated by formula)?For example, Line Height = 0.2 mm, Infill Layer Thickness=0.4mm, Adaptive Layers height = 0.1~0.3mmMy guess is: Infill Layer Thickness is always rounded to be a multiple of the transient layer height. Is this correct?Thank you!
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2 hours ago, nallath said:
You can also enable the backup plugin. It's shipped with Cura by default.
@nallath Yes. It's a cloud-based functionaility. Thank you!
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16 minutes ago, ahoeben said:
The local solution would be backing up %APPDATA%\cura\4.8 as you indicated.
@ahoeben OK. Thank you!
Is it possible to specify a cutom profile to "Modify settings for overlaps"?
in UltiMaker Cura
Posted
@ahoeben Thank you for your patient answer!