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Hi all and good to be here. I'm new to the forum and fairly new to Blender. I did some tutorials and simple drawings, but now I want to 3D print my designs.

I've created a rim (1/24 meant to be used in scale modeling) The inside of the rim containts a 'cylinder' that will be used to attach the wheel to the model car. For some reason, the vertices shown in the image below appear to be somewhat offset when I slice the STL export for printing. However, all the vertices have the same Z value of -11mm. What am I missing/doing wrong?

Rear view of the rim

According to the slicing tool the outer rim first appears on the third layer, where the center starts on the 1st. Slicing tool for the Anycubic Photon printer

I am aware this could also be a problem from the slicing software... but let's look at the design first.

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  • $\begingroup$ Have you tried selecting all of the vertices and changing the Z value again? maybe there's some missing $\endgroup$ – Luciano May 4 '20 at 9:49
  • $\begingroup$ Yes, I've tried that. That was when I made the screenshot ;) Perhaps I will cut off the highlighted section and redo the extrusion, but this time for both the outer and the inner parts at the same time. $\endgroup$ – Arno Smulders May 4 '20 at 9:59
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i had problems like that as well. I ended up just starting from new and being very careful. Blender sometimes just creates some weird slightly invisible vertecies out if nothing. and if u don't ctrl + z them, I don't find any way to get rid of them

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I found out what the problem was. In my scene collection I still had the original cylinder I used to create the center part. I'd set it to invisible, but when exporting this object was 'actived' and visibly added to the stl file. Jep that feels like a newbee mistake :S

enter image description here

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