Tilleen

I think I have found the option. It is Ignore Small Z Gaps. Needs to be off.

I am trying to slice the Impossible 3d printed bolt and nut from Thingiverse. The problem is that cura 3.2.1 does not seem to get the top and bottom surfaces correct between the nut and bolt. It seems to get confused and slices the top surface of the bolt and the bottom surface of the nut to be infill, and then puts the top/bottom surfaces further inside them. I assume it is not treating the small gap between them as a proper gap? Is there a setting that I am missing? What is the smallest gap it can handle?

The problem with it dropping is that it is used as a support for the top layers, I did a demo of a different object and it produced a line that when out about a centimetre in to the with no support at the end and then subsequent layers built on top of that, but since it would not work all the layers above would fail and the whole gradual infill would then fail. Gradual infill or any other slicer created structure should never create impossible to print lines. I understand that this may actually be impossible, and that gradual infill is relatively new, so I expect that it will be getting better over time.

Thank you for the suggestions, and the link to Tutorial. Yes, I have been playing with "gradual infill steps" as well, looks good, although it looked to me as if some of the steps did no look possible, but I have not tried it on a real print, so I could be completely wrong.

Here is the solid view. I think with no infill this is not possible, but I may be missing something.

I am expecting the top layers to be able to work because they are a bridge, from the outer edges, it may be too far, and I would have to put in infill anyway. I have not printed anything yet, I am currently getting a feel of the software. There are a lot of options, and could have missed something.

Yes, I tried the infill, I am just trying to work out what is possible. I would have thought that there would be an option for supporting infill, or something. This means that I would have to put infill everywhere, in a print that does not need it just to support it that area. It is just another feature that would be nice to have, and would help stop people from trying to print something that is not possible.

This is an example of what I mean, this is just a square box, and it has started to draw the lower indented top. If you look at this picture, you can see that the yellow first layer top is floating, with 0 infill. I would have thought that the program would be smart enough to not allow this, or to work out that it needs a support structure under the indented top. It is possible that there is something I am missing. There are a few other situations that similar things can happen. Tilleen.

Hello. I am new to using cura and 3d printing in general, and I was looking through the animation that the happens in the layers view. Does this animation actually interpret the g-code, so what it does is what the printer would do? The reason I ask is because with a simple model I was making which is about 5mm think and about 100 mm square, and has a lower region at about 2.5 mm thing in the middle. With no infill, the animation shows it building up the bottom layers and then the just the edges, and when it gets to the about 4 slices below the lower region it starts doing the bottom of the this region. Which makes sense except for the fact that it draws this region in the middle of no where and I can not imagine that it will work if printed on a real printer. Shouldn't it realize that there will be this floating area and make supports for it? Thanks, Tilleen.