ok so basically, I’m trying to make a mesh for the purposes of 3D printing. I started with an imported stl file and then did a bunch of sculpting to shape areas how I wanted. This has made the blender file huge and my computer hates me. Anyway I finally managed to get it to a stage where I could export the model as an stl file, however when my 3D printing software tries to process it can’t because the model has these points with an absurdly high concentration of vertices around the sculpting areas (most of it now essentially ‘inside’ the mesh). If I try to decimate the model or merge by distance its basically impossible to keep the overall quality. Is there any easy way just to make a new mesh using the ‘outside’ shape of the model? This will then be simplified and my 3D printing software will probably be able to handle it? Thanks for anyone’s time who has read this 😊
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2$\begingroup$ Hello :). Have you tried the new Blender remesh? blender.org/download/releases/2-81/#remeshing $\endgroup$– jachym michalCommented Feb 14, 2020 at 12:51
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1$\begingroup$ ahhh of course, remesh! Yeh that's easily solved my problem. Some parts of the model have now been left as a void but my 3D software is handling it no problem now and I will be able to tweak to get my print. So obvious when you know how! Thanks :) $\endgroup$– ANDYSAWRUSSCommented Feb 18, 2020 at 11:17
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$\begingroup$ Happy to help, good luck with your project :). $\endgroup$– jachym michalCommented Feb 18, 2020 at 11:54
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I agree with Jachym. The remesh modifier may do the trick.
In object-mode, select Modifiers, and add the Remesh modifier. Find the Octree Depth Option (it will be the main one for your issue) and adjust it up or down. Careful! With high poly-counts like you have - adjusting it higher may cause Blender to crash so take the necessary precautions with this in mind.
See this vid at the 1:30 timeframe to see it in action.
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1$\begingroup$ Links can go down... Please add the essential steps of this vid to your post to help us making this site an organized knowledge base. This is a so called "Low Quality Answer" and will be removed anyway. Otherwise post as comment instead. $\endgroup$ Commented Feb 15, 2020 at 10:56
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$\begingroup$ Just to add. Since blender 2.82 there is a new integrated remesher, that might give better results than the remesh modifier :). $\endgroup$ Commented Feb 18, 2020 at 11:53