Making a STL file with Blender - what is wrong with my file?

Edit: Uploaded STL.

Hi,

Newbie here, I’m trying to create an STL file with Blender. The final rendered 3d object seems file but when I print, it looks pretty weird - it seems like there are missing lines, exactly like how the printing steps (the picture with red lines) show in the screenshot below.

I’m not sure if this is a print setting problem, or a problem with the STL file? The print setting is:

Thank you!
dinasour.stl (2.9 MB)

Post the STL and we’ll look

If you can post the original blender file/project or share that in some way, that might be helpful too, but yes the first step is to share the STL. I personally don’t use Luban to slice, so I can try and slice it with Simplify3D and see what’s up with it too.

How thick are those lines? I noticed luban has a problem slicing thin lines.

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I was going to post the same thing. Luban knows the nozzle is 0.4mm, and won’t attempt to print any line that is narrower than that. Cura has a similar limitation.

Comparing the two images, it seems all of the thicker lines are being printed.

Using your STL, if I scale it up by 180% (and move it around to fit on the plate), more of the lines will print. So I’m pretty sure it’s a line width issue. Make your narrowest line at least 0.4mm wide. If that’s not possible, you can get smaller nozzles, but that’s a more advanced topic.

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Thanks for looking this issue for me, really appreciate it! Guess I’ll have to re-do the STL file!

Yea, I just measured the thin lines, they are as small as 0.16mm. Nice model though! Hope your update to it goes well.

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Thanks! It was actually my first time trying to create an STL file. It was basically from a picture converted into svg, then extruded up using Blender. Lots to learn!

What tool did you use to measure those lines? I tried in Luban and TinkerCad, but I was only able to eyeball it.

Fusion360 with the inspect tool, just kinda random sampling things that looked small.

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