Help with making and modifying pyramids.

Help with making and modifying pyramids.

20220374D3DY
Explorer Explorer
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Message 1 of 5

Help with making and modifying pyramids.

20220374D3DY
Explorer
Explorer

Im trying to create a robot that uses a rhombic dodechahedron shape. I found a repeating pattern of the shape and it is made of a pyramid which is very hard to modify and align properly. I can only use sweep on 1 side at a time and cannot align them to the centre. I also dont know how to create a pyramid from scratch in fusion. Theres also a specific side and angle ratios that arent rational numbers...
Screenshot 2025-08-15 135627.pngScreenshot 2025-08-15 135639.pngScreenshot 2025-08-15 135703.png

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Message 2 of 5

jordy_keller
Enthusiast
Enthusiast

Do you want the most basic geometry for this thing?

I had a go at it and came up with this, maybe it helps.

 

Don't know what it's called so you'll probably want to rename it.

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Message 3 of 5

kacper.suchomski
Mentor
Mentor

Hi

Look at how to make a single pyramid:


Kacper Suchomski

EESignature


YouTube - Inventor tutorials | LinkedIn | Instagram

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Message 4 of 5

matthewrjacobs
Advocate
Advocate

Check out the video below

 

Laholm Rhombic Dodecahedron 

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Message 5 of 5

KristianLaholm
Advocate
Advocate

The Rhombic Dodecahedron has a simple geometric foundation, the two diagonals of the rhombic face have the ratio of sqrt(2).
This can be used with an offset plane, a sketch and Loft giving you one wedge (out of 24).
In the file I create the rest of the rhombic dodecahedron using a patterns only for proof of concept.
File attached.

Skärmbild 2025-08-23 092252.png

 

Skärmbild 2025-08-23 093441.png