Hey all, I’m having an issue when slicing a circle shape with the archimedean chords pattern.
I’d like to achieve that my A1 Mini prints each layer of the disc in one go (like a spiral). This seems to work great, but at a closer look it creates these artifacts at the edge of the disc, which are pretty bad in the printed shape, too.
Does anyone know how I can avoid/remove these artifacts?
How many wall loops are you using and how many layers are in this object? From what I can see, this appears to be 1 or maybe 2 layer object. Better screengrabs of an oblique angle would be helpful to allow us to take out the guess work. Or better yet, upload the 3MF file so we can give you higher quality answer rather than going back and forth.
Here’s’ what I mean. Click to zoom
This example image provides very little information to go on in order to help you.
Now this image tells us a whole lot more.
Now if we were armed with the actual 3MF file we could do the following analysis.
If I had to guess. The issue might be related to the fact that you are using monotonic as your bottom layer which is allowing the layer lines to “poke” out on the edge of the model. Or it could be the lack of enough wall loops. Again, it’s guess work without more information.
Gotcha, here’s a screenshot with more information as well as the 3MF file.
PO-80 blank disc_v1.3mf (35,6 KB)
I think it might be a problem because the diameter of the circle is not a multiple of the line width and BambuStudio somehow tries to interpolate this… but makes it worse 
Thanks, that is very helpful. What I suspect is happening is that he slicer is mistakenly trying to apply the grid infill at the outer edge. I can’t explain why, bug maybe?
Click to Zoom
But here’s how to remedy it. Just add one wall.
Ah okay. Thanks! That makes sense. When I add a wall it’s still happening, but not on the outer edge, which is an improvement.
Not sure if it’s a bug. I think it’s in the nature of the archimedean chords pattern, because these are not conentric circles, so there will always be a gap somewhere.
