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Question About 3D Shapes

Gizmo j

Gizmo j

Golden Member

I wanted to 3D print 3D shapes for my cousin's toddler.

I was watching the 3D shapes song above and at 50 seconds in the singer says "ALL" 3D shapes...

My question is, is this really "ALL" the 3D shapes? Aren't there "OTHER" 3D shapes? Or are the other shapes not really a shape but a hybrid of different shapes?

Below are the ones I'm on the verge of printing:


10 search results for 3D models to 3D print with the keyword(s) “Sphere cylinder pyramid cube cone”・Cults

Here are the results for your search of 3D models for 3D printer and 3D designers: Sphere cylinder pyramid cube cone. If you cannot find your happiness, please ask Cults for an on-demand 3D modeling for 3D printing.
cults3d.com cults3d.com
 
I scanned through that video, and it depends on what you mean by "all". There are an infinite number of topologically distinct 3D shapes - trivially, imagine a doughnut, now one with two holes, one with three, etc. How you define "same" and "different" here will affect your answer.
 
Getting all the shapes would be pretty cool. Calcite is trigonal hexagonal scalenohedral and has over three hundred crystal habits.
 
The line "All 3D shapes" is referring to the mentioned shapes in the song are all 3d. Sphere, cylinder, cube, pyramid, cone, are all 3D shapes.

There are probably an infinite number of 3D shapes. I am sure there have been some math theses on the subject.
 
WelshBloke said:
Everyone should know how to make a mobius strip! I near melted a colleagues brain at work when I got her to draw on the strip and count the sides!

Disclaimer: That colleague is particularly stupid!
Click to expand...
This is a nice explanation and a 3D printed version last in the video.

 
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