complex 3d geometrical form - guidance

[steve]

Hi

Does anyone have any ideas for an efficient and flexible way to create this kind of geometry using Inventor? I just don't know where to even start.

Many thanks in advance for your thoughts

 

[kacper.suchomski]

Hi

If we assume that the edges of the polygons lie on one plane, it is enough to sketch all the lines (polygons), offset the plane and draw a second sketch with points. Finally, use the Loft command multiple times.

[EdvinTailwind]

Unfortunately Inventor froze and crashed when I was doing this, so I don't have my test part to share (I hadn't saved anything....) except for a screenshot below. I did this rather hasty, so there are likely improvements on this, but here's my step-by-step to achieve it:

1. Make two parallell planes - one for the lows and one for the highs (aka peaks).
2. Make a 2D-sketch with the desired rectangular size - looks like around 2 x 8 meters on your picture - on the low plane.
3. Place any number of randomly positioned points inside the rectangle. If you have a front facing image of the pictured wall you can  use that as a reference. 
4. Create another 2D-sketch on the high plane. Make an exactly same size rectangle on top of the other.
5. Repeat step 3 on the new plane. These will be the peaks.
6. Hide the Planes for better visibility.
7. Create a  3D-sketch. Use the Include Geometry to pick up the lower rectangle, then right-click -> Break Link. This is to enable the Split command. Because wherever the lines are attached to the rectangle, you must do a split.
8. Start connecting the points with the Line tool. This is rather time consuming and my CPU fan started spinning like insane, so don't stress and save often! 🙂
9. The low points should often be connected to each other, while the high ones only will connect to the low ones (unless you want ridges).
10. Once the lines are done you can exit the 3D-sketch and start using the Patch tool. Create new surfaces by selecting the edge of each triangle (this is where you will notice if you have forgotten any lines or missed any splits). The 3D-sketch needs to be shared to enable it for multiple patches.
    
    (This is where my process froze, so some assumptions here)
    
    
11. When all triangles are patched you can use Stitch to create a single surface, which then can be made into a solid with the Thicken tool.

[j.palmeL29YX]

Hmm, in AutoCAD (sorry for cheating) I used a small LISP to create randomly placed points and then triangulate between these points. 

>>Video<<

I'm sure, in Inventor a similar procedure (iLogic ?) can be used, But I have not the needed knowledge.

[cadman777]

No.

Grasshopper in Rhino3D: Advanced design.

[89198826955]

if I understand correctly

pattern repeats

 is it the way you want it?

[steve]

Hi

Many thanks

This the principle, but the edges are sharp (extrude backwards). This is not the exact design this is the inspiration for what I need to achieve. No the pattern does not repeat.

[steve]

That is brilliant. I don't mind using acad, but that is way above my skill level.

[steve]

yes all base on one plane all points on another. Thanks I'll give is a go.

[steve]

Thanks

This seems like a real labour but it is a solution that I have the skill set for. It gives me somewhere to start.

[steve]

Sorry, yes each panel is a staggered repeat of the others.

[johnsonshiue · Accepted solution]

Hi! Instead of Boundary Patch, I would use Loft to a point in this case. It should be highly doable, particularly if the pattern repeats.

Many thanks!

[steve]

Perfect many thanks.

I didn’t know you could loft to a point.