Split object into parts

[laurent_delrieu]

Hello
there was a discussion on this subject here

Split a Large Mesh for 3D Printing

[image] Instead of splitting the mesh, I think I would rather use Mesh Difference and subtract very thin boxes and at least one cylinder per plane. The cylinder is later used to reinforce the joint with a threaded rod. [image] SplitMeshFor3DPrint.gh (894.6 KB) PS: Your quad remesh had two internal voids. I deleted them.

Bison skull

“I want one of those engraved bison skulls with the horns” she said… [BISON_3] [BISON_4] [BISON_2] This is a remix of this amazing 3d scan of a fossilised bison skull… https://www.thingiverse.com/thing:2772592 I used Rhino QuadRemesh to create a smoothed, symmetrical mesh and then used @laurent_delrieu’s maze on mesh tool available in the Nautilus plugin. It took a long time to process the maze but I think it looks amazing. I had some great help from @martinsiegrist in this topic to split…

Here I have tried another solution, it has some plugin, some of them could be skipped and other changed.
But the logic is
1)Generate a solid brep/mesh of the object, I use here Dendro to close the mesh, it is not 100 % perfect but seems to work here.
2)Generate points inside the volume

3)Cluster these points with K-Mean clustering for example

K-Means Clustering

Hi all, I am wondering if anyone is familiar with the K-Means clustering component in the Ivy Plugin? I am interested in implementing the algorithm through either C# or python in GH in general (and ideally with no plugins) for panelization of surfaces with limited number of unit types similar to this: I’ve come across two threads on the old forum but haven’t been able to see much of the codes 1.https://www.grasshopper3d.com/forum/topics/kmeans-1?id=2985220%3ATopic%3A215631&page=1#comme…

Create a "Paint by Numbers" script

Here an idea like I used for mosaic using K-Mean Clustering, has color are transformed to points (in [-1, 1] space). I then use mesh IsoSplitting but you could use Mesh Contour, Mesh Plane Intersection … K-Mean Clustering is very sensitive to initial condition, so change seed value. There is surely a better approach but I don’t know it. I also did it a bit fast, so there could be some glitches [image] split image.gh (24.1 KB) Bird [image] And smoothing the contours, filtering by area ……

…
4)Calculate the center of the Cluster
5)Make a 3D Voronoi (intersection with object will be a plane or planar surfaces.

6. Make solid intersection

12 pieces here

5 pieces

40 pieces

Bison is not exactly what wanted @martynjhogg has it is volume
Volume from 1.8138e+6 To 3.2192e+6

And if you want the most stable positions, use stable positions From Nautilus plugin

Branch to split LD.gh (5.1 MB)