Then you will configure the following parameters:
Quality
Walls
top or bottom
Stuffed
Infill density: 0.0 %
Material
Speed
Displacement
Enable Retraction: Disabled
Después vas a buscar «offset overlaps de pared» y lo vas a deactivateIf it does not appear in the list you can search for it in the search bar and disable it.
Once the cube is printed, you must take the measurements of all the walls and get an average measurement.
In my case the measurements are: 0.74 mm / 0.71 mm / 0.74 mm / 0.74 mm
Taking the average I have a total of 0.73 mm left
(Wall Thickness / Average Thickness) * 100 = New Flux
In my case it would be: (0.8mm/0.73mm)*100
It would then remain 1,095 * 100 = 109,5
109 % It would be the new flow value to set in Cura (for my case).
Now that you have the new flow value, you will need to put it into Cura and run the test again to check that everything is ok.
After entering the new value, print the cube again (now you should activate the retractions) and take the averages again to see the results.
0.80mm/0.77mm/0.80mm/0.80mm
Now your new parameters should give you parts that are more accurate in their measurements. Even so, you should perform all kinds of tests to confirm that this corresponds to reality.
I decided to run some tests to check that the whole process works well, and I printed a cube 20×20 calibration to take measurements.
I also printed one socket test to see if with the new parameters the pieces slide into each other.
In the first test I printed a 20mm XYZ calibration cube, and the results were as follows:
X = 20.09mm Y=20.00mm Z=20.02mm
Which are pretty good I think, since the differences are minimal.
In this test the cylinder entered with a little pressure, but quite well. I have to consider that the seams offer a little resistance, pero se pueden lijar de ser necesario, además de la primera capa que puede estar un poco más «aplastada» que el resto.
I think calibrating the flow can help a lot to make the dimensions of your jobs more accurate.. Even so, it seems to me that there are many variants at play, which can produce interference as I mentioned above with the seams.
Calibrate the extruder steps and calibrating the flow by software can be of great importance to have more precise prints.
I also believe that much more testing can be done to improve these approximations using the horizontal expansion, something I will talk about soon.
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