build a 3d sphere?

Posted almost 4 years ago

Creating a buckyball like the one in your first image is very easy in most 3d modeling software. You would start out with a icosphere with 42 or so vertices and then just bevel or chamfer the verts and delete the ngons after. However, using a pattern template geometry as you have in the second image as the lattice requires some extra features that will depend on the software itself. What software are you using?

tyana-kay

Posted almost 4 years ago

Thank you for your response luxxeon. I am not using any software at the moment. This is something I am building by hand, out of paper. I already have a flat model that I can keep build indefinitely. I am trying to figure out what would it take to bend it into a sphere (and if it's at all possible) and how it would look in 3D.

I took a closer look at the first sphere image I posted which I initially thought consist only of hexagons and discovered that it's hexagons and pentagons which is not what I need or would be able to build the way I am doing it right now.

luxxeon wrote almost 4 years ago

Yeah, that first one is a "buckyball" wireframe shape. In 3d, you would begin most likely with an Icosphere (a sphere which consists only of triangles), then by process of either bevel or chamfer on each vertex, you could create the hexagonal holes. Similar to how you might construct a golfball in 3d, but the resulting number of holes will all depend on the number of vertices in the icosphere. Now, if you wanted to use that flat shape as the pattern, then you might just use a process called "scatter" or vertex instancing, which would take the flat pattern (as long as it could tile seamlessly) and attach it automatically to every face or every vertex on the icosphere. There are certain functions in 3d software (depending on the features of that software) that allow for this. It could automatically shape the pattern to the sphere at every midpoint of a triangle or vertex and bend it to conform to the spherical shape. Then you can just weld all the instances of that new pattern together to create a solid object. I really don't know how it could be done with paper in the real world. I just assumed you were doing it entirely in 3d.

tyana-kay

Posted almost 4 years ago

Ok, thank you. Which software would you recommend for something like that?

Also, in real world that would be a modular origami piece. I just realized I am in the wrong forum :)

I am doing something similar but not origami.

Here is a modular origami buckyball, in fact the same as the first sphere image posted in original post: https://i.pinimg.com/originals/e9/6c/8b/e96c8baafa4b8241f245b8c8137c6396.jpg

or this one -
https://i.ytimg.com/vi/e-BZGxwycUQ/hqdefault.jpg

luxxeon wrote almost 4 years ago

I kind of thought you might have posted in the wrong forum, but I wasn't sure. In 3d you could do it in any number of different software packages, such as Blender or Zbrush. I would probably do it in Blender. There's a free add-on for Blender called "Tissue" that is specifically designed to create tileable patterns on primitive 3d objects like this. There's a learning curve involved, but it's well suited for this type of thing.

tyana-kay

Posted almost 4 years ago

Thank you for recommendation. I was googling 3D modeling, that's how I got here. I wanted to see if what I am trying to build is even possible, geometry-wise. It would be nice to see it in 3d model beforehands. Are there any online platforms similar to Blender? With no software installation required? Any of the ones listed here you're familiar with and could recommend?
https://alternativeto.net/software/blender/?platform=online

luxxeon wrote almost 4 years ago

I've used Clara.io many years ago. That's really the only one in the list I'm remotely familiar with. I've used SculptGL before too, but that's not the type of software that would be useful for something like this. Clara.io is probably the only one that might come close, but I just don't know enough about it to say for sure.

Quiper

Posted almost 4 years ago

I am using blender and I think you can create it more easily with its small size and relatively new interface.
You can also watch the following tutorial, which is of significant benefit, even if it doesn't allow you to fully extract the model: https://www.youtube.com/watch?v=c2rtqprkLgM&list=PL6qhZ57G7buypLtTLPHKGfIkbuTm5H6BI&index=4

PauloRider

Posted almost 4 years ago

I think the easiest way is with blender, you can just make your model then use the wireframe modifier

Gromyko-Maksim wrote almost 4 years ago

Perhaps the easiest way)

build a 3d sphere?

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