News for hackers. Stuff that matters.

A comment on Show HN: 3D Meshes of Signed Distance Functions in Python. Parent comment

Re:Show HN: 3D Meshes of Signed Distance Functions in Python by andybak on Wednesday February 17, 2021 @09:44AM (#26166795)
Or Surface Nets. Nice compromise of speed and quality. Marching cubes needs a lot of resolution and it's imperfections are especially ugly my eyes.

Maybe mesh resolution isn't a problem for 3D printing. But if 3D printing is the main goal why bother with a mesh? Just go straight to voxels that can be fed directly to the printer.

[ Parent | on HN ]
Re:Show HN: 3D Meshes of Signed Distance Functions in Python by user-the-name on Wednesday February 17, 2021 @10:18AM (#26167238)
The printer does not use voxels, it uses G-codes, which are tool paths for the print head.
[ Parent | on HN ]
Re:Show HN: 3D Meshes of Signed Distance Functions in Python by tdotuos on Wednesday February 24, 2021 @11:49PM (#26259813)
True for FDM, but for SLA you have the potential rendering a direct slice of the SDF.
[ Parent | on HN ]
Re:Show HN: 3D Meshes of Signed Distance Functions in Python by andybak on Wednesday February 17, 2021 @12:42PM (#26169089)
OK. But a voxel representation has to be a closer match than a mesh. I guess overhang, solidity etc still need to be calculated and dealt with. Which is non-trivial.

Is it that "mesh to G-code" libraries are more mature than "voxel to G-code"?

[ Parent | on HN ]