Creating Platonic Solids

[hollister design Studio]

I'm wanting to make some sculptural gabion forms for a landscape project based on platonic solids - from simple dodecahedrons to truncated icosahedrons...

 

Do we have a tool for creating platonic solids?

 

 

[Jeff Prince]

1 hour ago, hollister design Studio said:

 

Do we have a tool for creating platonic solids?

3D Warehouse or Sketchfab, those are pretty good tools for the job 😉

[Hans-Olav]

 

[hollister design Studio]

@jeff princeI can natively build them in autodesk Maya and export as stl or obj - I just haven't opened that program in over a year!

...looks like I'm a VW convert now!

 

@Hans-Olav I'm not marionette savvy yet... but I might try this. An in-house polyhedron creator would be nice.

[Benson Shaw]

 I did some work on this a while back

 

-B

 

 

[Benson Shaw]

The dodecahedron, well, the lower half.

Trick here is to envision the completed object.

The larger pentagon has edge length equal to the cross bar.

The fold angle is where ctr of cross bar meets the projection of the large pentagon.

The cross bars form a pentagon when "folded" up into position (edge length = edge length of the larger pentagon).

 

-B

 

Edited February 3, 2022 by Benson Shaw
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[rjtiedeman]

I built a Icosahedron. Old school, similar to drafting class about 50 years ago. Use the ARC tool like a compass and bisect angles to establish points in space. To save time I did most t of the surfaces this way and then filled on the blanks with the 3D polygon tool. It's fun but you have to focus and not walk away.