mkoic
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3D Prints
Posts posted by mkoic
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During startup, it seems like message that shows up the longest is about Cura "loading machines". Is this the process of loading profiles for every 3D printer in the database, or are the "machines" something different? If the former, it would be nice if you could choose which machine(s) it loads so that you only have to wait while the machine(s) you care about are loaded.
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You may be able to fix this by reducing your temperature a bit.
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3 hours ago, GregValiant said:
I made a feature request back in April of last year. It was deferred. You could push it forward again. I still think it would be a good idea.
Thank you. Done. 🙂
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This seems like a simple request. How do I go about making this suggestion in a way that is more visible/productive?
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On 4/21/2021 at 3:46 PM, csterlin said:
I also would like to know the Z-Axis height, especially with the implement of Adaptive Layers, which makes even using a calculator makes it impossible to know.
Good point, @csterlin! I haven't used Adaptive Layers yet, but that would certainly make calculating height manually impossible.
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I wanted to repost this since it never received a response and I think this would be a very useful and simple to implement addition for a future version of Cura. Many time I want to be sure that the Z-height of my part is printed as designed. Currently, to verify that I would have to calculate BOTTOM LAYER HEIGHT + (n-2)*LAYER HEIGHT + TOP LAYER HEIGHT, usually tweaking either the layer height or the top layer height so that my total height equals the intended height. Having the layer slider on the right show not only the layer number but also the cumulative height would save time.
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14 hours ago, oparrott said:
So how DO we use Adaptive Layers Topography Size?
Definition in Cura says "Target horizontal distance between two adjacent layers. Reducing this setting causes thinner layers to be used to bring the edges of the layers closer together."
How are there adjacent layers horizontally? I thought there was only one layer at each Z height? I'm doing multi-color printing with UM3 but wasn't familiar with this way of talking about it.
Thanks!
Every layer is adjacent to the one below it (except for the first layer) and the one above it. Maybe a better term would have been “sequential”. -
12 hours ago, ViperZ said:
I've set the Z-seam alignment to random, but it often prints from the same corner over several layers.
I would like to make sure that adjacent layers do not print from the same corner.Thank you.
Random can give repeats. It’s probably just because that’s the way random numbers work.
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9 hours ago, aag said:
...that alerts me of a problem (e.g. run out of filament, pause, or else) by push notification? Because without that, the app is very-close-to-useless.
Great idea. You should write a plugin for that. 😉
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16 hours ago, csterlin said:
As for me making a gcode file to demonstrate this, it will surely be beyond of my understanding of the coding. I could modify an existing file, perhaps. I will look into this.
My question about this was actually for @burtoogle -
On 12/26/2019 at 7:54 AM, burtoogle said:
A user of my Cura builds asked about reducing the chance of resonance when printing areas of skin with short lines. I have therefore added a new setting "Avoid Frequency" that, when non-zero, specifies the resonant frequency to avoid. Skin, infill and support interface lines using the Lines and zig zag patterns that would be printed using hot end motion within +-/20% of that frequency will be slowed to move away from that frequency band.
Here's an example showing the speed reductions in the narrow(er) skin regions...
So if anyone uses a printer that has resonance issues and are willing to try out this feature, I would be grateful if you could give it a go and report back whether it is beneficial or not. Obviously, you will need to determine a suitable value for Avoid Frequency and that is going to be printer specific.
It may be that my simplistic approach to just avoiding frequencies within 20% of the specified value is not good enough and it may require either a bandwidth setting adding or upper and lower frequency limits.
As ever, my builds can be found at https://www.dropbox.com/sh/s43vqzmi4d2bqe2/AAADdYdSu9iwcKa0Knqgurm4a?dl=0.
Please read the README.md file there. All feedback is welcome.
Thanks.
would you be able to develop a gcode file that could step the printer through different frequencies that we could run to help determine our specific printer’s resonance? It could display the frequency on the screen at each step change. -
Nobody has an opinion on this?
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Under “Shell” there is a setting called “Hole Horizontal Expansion” that can do exactly what you are looking for.
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Since you can set a gap distance from the part to the brim, it seems like skirt controls could just be eliminated. This would streamline the settings some, and I would assume it would clean up the code as well? Is there any reason to keep skirt?
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Check out this thread.
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Interesting.
Does anyone know what the maximum volumetric flow rate is for an Ender 3 Pro with stock hot end? I guess this would vary depending on nozzle size, material, printing temp … ?
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5 hours ago, ahoeben said:
It would be helpful if you could give some examples.
Fair enough:
- Infill Layer Thickness (When should I consider using this?)
- Retract at Layer Change (What's recommended? Why would I want it or not want it?)
- Regular Fan Speed
- Maximum Fan Speed
- Regular/Maximum Fan Speed Threshold (Why would I want to have different values for Regular and Maximum? When would I need this?)
- Extensive Z Offset Processing (If it's recommended to leave it off, why does it exist and why/when would I want to consider using it?)
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My biggest issue is that sometimes the flyout descriptions for the various parameters give no indication of WHY one might use them. It would be nice if more detail was provided to help the user make more informed adjustments.
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3 hours ago, GregValiant said:
This is one of the reasons I find myself designing things with one eye on the slicing software. Sometimes you have to fool Cura into doing what you want.
Without the option you described (call it Last Layer Height) and in the situation you described, adjusting the Initial Layer Height to .6 (or .2) would adjust the top layer to end up at 25mm.
Setting the layer heights to .403 would get really close to 25mm.
But what if the model has a second feature below the top level (Ex: a step) that needs to be held to a tight tolerance as well?
I haven't played with Adaptive Layers much. Maybe that would be work for multiple features.
I’ll have to look into Adaptive Layers some.
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Forgive me if the following feature is already in Cura, but I haven't found a way to do this yet. For example, when printing a 25mm test cube with a 0.8mm nozzle and 0.4mm layer height, the last layer printed is 24.8mm, not 25mm, because Cura only works in full layers. Why wouldn't there at least be an option to print the final layer at whatever height is required to reach the full height of the object? It seems like this would be a nice improvement and an easy feature to add. In order to avoid potentially having to print the last layer at just 0.1mm thick, perhaps the feature could be to adjust the last "x" number of layers to achieve the full height?
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7 hours ago, ahoeben said:
The Initial Layer Height will affect how much material is extruded. If you make a "thicker" layer, more material will be extruded to "fill" that layer. A thinner layer results in less material being used for that first layer. Changing the initial layer height will not "squish" the print more or less into the buildplate.
The Z Offset does not affect how much material is extruded, but only how close the first layer is printed to the buildplate. A negative Z Offset will squish the print into the buildplate. A positive Z Offset can make it easier to remove a print from the buildplate, while increasing the risk of the print coming loose during the print.
The initial layer height is used to compensate for a buildplate that is not entirely flat or well leveled. The Z Offset is used to increase or decrease buildplate adhesion. They are two different tools for different goals.
Thank you for that very clear explanation. Very helpful.
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I use 0.8mm nozzles frequently and often use a 0.3mm or 0.4mm layer height. On some materials, a brim this thick can be difficult to remove cleanly without a lot of effort. I would be interested in being able to set the brim thickness independently from the initial layer thickness. Similarly, at times on parts/materials that are warping, it might be helpful to increase the brim thickness.
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Is there a difference between what the Initial Layer Height setting does and what the Z-offset plugin can do? Is there a situation where one should be used vs. the other?
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There is a z-offset plugin in the marketplace that can allow your first layer to be closer to or further away from the bed to help with first layer adhesion.
What is Cura doing when it is "loading machines"?
in UltiMaker Cura
Posted
Nice! Thanks!