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This should be very easy but I am not able to get this to work. I have mainly used Solidworks in the past & I am new to Blender.

I'm trying to 3D print the planets from the NASA data. For example, I downloaded and imported a glTF file from here https://solarsystem.nasa.gov/resources/2375/jupiter-3d-model/

I scaled it 0.01 since you can't import large files to Shapeways.

I then added the Solidify modifier, made the thickness 4mm, offset -1, even thickness. The rim option checked and unchecked didn't seem to make a wall thickness.

I added a cylinder to make a hole on the top, which is needed for cost effective 3d printing (you need a hold for sandstone and a hollow object). I used boolean to subtract that out.

After I created this hole, I can see there is no wall thickness to my planet. I've watched a few YouTube tutorials on hollowing out a model and I'm not getting what I am missing.

Maybe it's this type of import file? Some setting I'm not getting since I'm a newbie?

I was inspired to do this by this designer https://www.littleplanetfactory.com/ I tried messaging him on what software he uses but no response.

Thanks for any help.

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  • $\begingroup$ Hello and welcome. While files, images, and external videos or links may be helpful additions they should not be the only way to obtain information about your issue. Don't make understanding your question rely on downloading a file, watching a video or visiting an external site. Use the builtin tools to upload images or gifs, along with thoroughly explaining the problem in written form so it can be indexed and searched for thus helping future visitors with similar issues. $\endgroup$ Jun 16, 2023 at 18:15

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Hard to say why your boolean doesn't work, but you can create your hole without. First in Edit mode select all and AltJ to untriangulate, M to Merge by Distance (you have overlapping vertices), then select 4 faces on the top:

enter image description here

Then inset with i, enable the LoopTools addon and right click > LoopTools > Circle:

enter image description here

Delete the faces and give your object a Solidify modifier:

enter image description here

If your object needs to be rounder, give it a Bevel and a Subdivision Surface modifier, increase the bevel Angle value to keep the hole round:

enter image description here

If the hole needs to be small, select only one face, inset, subdivide, LoopTools > Circle and delete:

enter image description here

Before printing of course you'll need to apply the modifiers (and also I guess create some legs?)

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  • $\begingroup$ Thank you!! Your pics look like what I'm aiming for. $\endgroup$
    – rr600girl
    Jun 16, 2023 at 18:27

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