New technique to combine quality and speed: ThinSkin. Thin layers on the outside and thicker layers on the inside. #224
Replies: 5 comments 4 replies
-
I seem to remember that Cura has the ability to print double thickness infill layers already!! But I don't think it can print thicker bottom surfaces and thin walls, or thin outer walls (with Outer Walls first) and thicker inner walls. |
Beta Was this translation helpful? Give feedback.
-
Yes, that's a bug but I think it was in the 4.13 code that my variant is based on. It should be easy enough to make it work for a future release. |
Beta Was this translation helpful? Give feedback.
-
Ok so solved in 4.20.13 Define : Infill Layer Width : 0.4 Need to be tested ... It's something for @CNCKitchen :) |
Beta Was this translation helpful? Give feedback.
-
Under-extrusion due to too high a flow rate is extremely common. I think that people believe that their extruder will work just fine up to some limit where it will suddenly not be able to deliver the expected rate. But in reality, the achieved flow rate will start reducing much earlier, it may not be a linear function but the achieved flow rate will taper off as the demanded flow rate increases. One of my printers uses a Duet (aka RepRap) controller and it has a configuration option whereby you can specify a transformation equation of the form F = af^2 + bf + c where f is the demanded flow and F is the flow actually used. I.e. it is non-linear. The effect of this transformation is to make the extruder more linear so when the demanded flow rate is doubled, say, the output really is doubled (or at least closer to being doubled). Of course, the extruder will run out of steam at some point so you can't actually achieve a better flow performance than what the extruder is physically capable of but this feature helps to linearise the actual flow achieved. |
Beta Was this translation helpful? Give feedback.
-
Not really anything helpful. We might be talking apples and oranges though.
Apples: Oranges: @john3volts3 has in interesting concept. One problem I foresee is that I consider 4 skins to be a minimum to hide the infill pattern. It's dependent on things like filament color, but the "4 top skin minimum" has been a good general number for me. This is from 4.20.13 at a 0.2 Layer Height and the Infill Layer Thickness at 3X Layer Height. I just thought it was interesting as the "catch up" layers directly below the first top skin are correctly dropped to "Layer Height" to eliminate any gap. The extra flow appears to affect the displayed line width where it should really affect the displayed layer height as without any squish the extrusion won't spread. Time for another cup of coffee. |
Beta Was this translation helpful? Give feedback.
-
To achieve a nice exterior finish, the use of thinner layers is very effective. But it slows down the printing process. So why print all the walls of the object with this thickness of layers, when it doesn't add anything to the mass because it doesn't show? My idea is very simple: we print the outer walls in thin layers and the inner walls in thicker layers. And this is quite possible. All the programmers have to do is implement this function in their slicers. In the meantime, I have been experimenting with the POC on a very simple object. All details are available on printable : https://www.printables.com/model/482817-thinskin-speed-and-quality-combined-one-more-trick
animation-1.mp4
animation-2.mp4
animation-3.mp4
g-Code-preview.mp4
https://youtu.be/oHky-r_hI2c
Beta Was this translation helpful? Give feedback.
All reactions