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I am making this dog feeder.

My goal is to 3D print it using an Ender 3 V2. I am using Cura to slice it.

When I slice it, though, Cura does not see the Top part (Dispenser box) as a solid piece. And when I am slicing it, it does not create an infill for the ramp. I have tried using the infill support option and setting the infill overhang angle to 0, but it still does not create infill support on the ramp. Here are some prints:

Notice that there is no infill under the ramp#1

Notice that there is no infill under the ramp#2

Notice that there is no infill under the ramp.

How do I make Cura understand that this is a solid piece?

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  • $\begingroup$ I'm not an expert at this and maybe someone else will have better insights, but it seems that you did not build it as a solid piece. $\endgroup$
    – agarza
    Oct 4 at 20:22
  • $\begingroup$ I'm also no expert but you can use Meshmixer to make it a solid or import it into Blender and apply a solidify modifier to the mesh. $\endgroup$ Oct 4 at 20:29
  • $\begingroup$ Is that a set in Cura that could fix this? $\endgroup$ Oct 5 at 12:19
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    $\begingroup$ Unrelated - consider that your plastic might not be food-safe. $\endgroup$
    – Criggie
    Oct 16 at 22:11
  • $\begingroup$ It is standard PLA. How do I find this out? $\endgroup$ Oct 17 at 15:52
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I've followed the link in the question and exported the dispenser box and sliced it in Ultimaker Cura 4.12.1 and it will slice just fine.

enter image description here


From a comment on the answer from the OP I've learned later that the model has been fixed. So the issue was related to the model/STL file, not an issue with Cura.

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    $\begingroup$ That is because I've fixed the problem in the project. I've awarded the right answer for the effort. $\endgroup$ yesterday

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