Messy print

[Miatpi]

Hi I've a printing problem (again). When I try to print my model with more path loops than 1 the print get messy at some particular sides.
But it's only happening when I've several path loops, I can praint perfectly fine thin models using 1 loop.
I've played around with the style settings so I'm sure skin thickness isn't the problem here.

[Dreide]

Not clear what you mean by messy (photo?), but setting "Inset Surface" to zero (or at least to a much smaller value than 0.25) might help. And possibly print perimeters first.

[Miatpi]

You're right, I should have used a better word than "messy" .
What I mean is that it seems like the loops somehow merge together making the model pretty thick, and at some adges it even occur bumps.

Hmm, I will try to lower the inset surface value, but wont it result in an even thicker print?

[Dreide]

Hmm. I always thought that "Inset surface" is only used for the perimeter but apparently this is not true, so forget my suggestion.
I am still not sure what your problem is. Obviously, if you print with two loops instead of just one, the walls will be about twice as thick. Besides, the loops are supposed to merge together. Maybe a photo would help to clarify what the problem really is.

[Miatpi]

Hi, I got rid of the problem by unchecking "loops go from inside to perimeter". But now my print instead has got a lot of holes, bumbs and small detaljs are a real mess....


What in the world is wrong

I will take a photo later today.

[Miatpi]

OK here are my prints, the upper one is the previus "messy" print an the lower is the new print with holes.

As you see the surfaces are much smoother on the newer print but at the other hand there are several holes in it.
I've used the same settings for the later print as I an my first post, with the difference that I've now unchecked "loops go from inside to perimeter".

Anyone?

[Hugues]

Yes, close your volume (if it's the same file as your previous post) !

[Miatpi]

It's closed and Kisslicer don't give me any error messages at all. So it's at least not the model which is the problem.

[Hugues]

Can you post screenshot of kisslicer setup ? (Style/material)

They would be useful to help you.

[Dreide]

It's closed and Kisslicer don't give me any error messages at all. So it's at least not the model which is the problem.

Yes and no. The problem is that you are printing the model hollow, so you have serious overhangs not only at bottom surfaces but also at the top surfaces. The print is small, so you can get away with it - as you say, it prints okay with just one loop. But with two loops the loops interfere. Sometimes this helps, as one loop can give more hold to the other, sometimes it is bad as one loop might be pushed over the brink by the other, so to speak. Regarding the loop order (outer first or last), the choice is tricky as, in your model, you always will have overhangs where the first loop is better supported than the second loop, and vice versa.
Cooling seems also to be a problem here, so all in all I see the following options. Use lower extrusion temp, print slower, set the cooling fan at 100% all the time, reduce the extrusion width (and possibly layer height). Less extruded volume at a time, that is having a thinner thread, cools quicker and has less tendency to drop and pull the rest with it). But foremost, obviously, use sparse infill or support. Ah, and pick the seam position wisely so it wouldn't be just in the middle of a problematic overhang/bridge.