topic Re: Honeycomb 3d surface in Fusion Design, Validate & Document Forum

Honeycomb 3d surface

Anonymous — Mon, 16 Oct 2017 23:38:09 GMT

I]ve searched the forum and only found mentions to using an image to create a 3d surface but I need something more precise than that.

My idea is to create, a honeycomb surface, 1 skin, inner honeycomb and another skin, like a material, that is 3 dimensional and has configurable settings like cells diameter and spacing from the honeycomb to the covering surfaces.

This material would then be applied to an object like a solid body and would be printed on a 3d printer.

Do you see the kind of honeycomb a 3d printer does upwards? I need it horizontally.

Imagine a cylinder whose surface is honeycomb all around.

On flat surface solids I could do this in a few steps but on complex curved surfaces I don]t see how I could make a consistent honeycomb surface.

This would allow very strong and light 3d printed objects with none or little inner structure.

Probably an hexagonal honeycomb would not print that well, maybe a diamond shape wth edges at 50 or 60 degrees would print better...

Is there a way to create a pattern and apply it to a surface on fusion?

Re: Honeycomb 3d surface

etfrench — Tue, 17 Oct 2017 00:01:20 GMT

Slicers already do 3d honeycomb infills.

Re: Honeycomb 3d surface

dieselguy65 — Tue, 17 Oct 2017 00:24:59 GMT

thats not what hes looking for, i dont think.

from what i read, he wants the honeycomb the other direction, inside the walls.

reminds me of the honeycomb composite carbon fiber panels we use.

two thin sheets, witha honeycomb in between

Re: Honeycomb 3d surface

etfrench — Tue, 17 Oct 2017 00:39:53 GMT

The image shows the 3d honeycomb infill between the inner and outer layers. The size of the honeycomb is adjustable in the slicer as well as the ability to add solid layers at intervals in the infill.

Designing a parametric 3d honeycomb that will conform to multiple non-planer surfaces in Fusion 360 is not a trivial task. I suspect the result would not be any stronger than the current infill methods for 3d printing.

p.s. The image is a cut-away to show the infill.

Re: Honeycomb 3d surface

dieselguy65 — Tue, 17 Oct 2017 01:37:24 GMT

You missed the point. He needs the honeycomb going the other way.
Think of composite panels. Trivial or not, or easy, it's the result he's
looking for, ,from what i read

Re: Honeycomb 3d surface

etfrench — Tue, 17 Oct 2017 02:02:20 GMT

They are 3d honeycombs. As such, they are every direction. You can make them large enough so there is only one between the shells or you can have many between the shells. You can add solid layers at any interval between them as well.

Re: Honeycomb 3d surface

daniel_lyall — Tue, 17 Oct 2017 05:28:17 GMT

Do you wont what's in the pick.

If so the slicer can do it in the strongest direction, Having it the other way around would it be stronger or weaker you can do it with Meshmixer a autodesk addon

https://apps.autodesk.com/FUSION/en/Detail/Index?id=4449224772584128239&appLang=en&os=Win64

The Voronoi 3D plugin could well be adapted to do it as well.

Re: Honeycomb 3d surface

lichtzeichenanlage — Tue, 17 Oct 2017 11:10:34 GMT

Isn't this a 2d honeycomb?

Re: Honeycomb 3d surface

lichtzeichenanlage — Tue, 17 Oct 2017 11:14:37 GMT

Are you looking for something like this?

3d honeycomb?

Re: Honeycomb 3d surface

daniel_lyall — Tue, 17 Oct 2017 19:59:39 GMT

@lichtzeichenanlage yep it is, That's why I ask the question about strength.

Re: Honeycomb 3d surface

dieselguy65 — Tue, 17 Oct 2017 20:30:24 GMT

You are still missing the point, the honeycomb structure is laid in the
wrong orientation inside the vertical walls.
It would be much stronger, laid in the other way.

Re: Honeycomb 3d surface

etfrench — Tue, 17 Oct 2017 21:09:41 GMT

That's like saying a ball is facing the wrong way The 3d honeycomb infill is just that: 3D. There is no difference between vertical, horizontal, or parallel to any face of the honeycomb.

Re: Honeycomb 3d surface

dieselguy65 — Tue, 17 Oct 2017 21:19:26 GMT

There certainly is. Draw ahoneycomb sketch, extrude it one inch. Look at
it from each side. You'll see the difference.
I'd drawit up, but I'm in thr middle of a big job. The 3d printer,
always prints infill with the open of the honeycomb facing up and down.
Think about the direction water could fall thru it.
We want the openings in the honeycomb structure facing each vertical
surface, not thr horizontal like it does.
That should clear it up.
It's able to be done, complex curves will be a nightmare for sure.
Thanks

Re: Honeycomb 3d surface

etfrench — Tue, 17 Oct 2017 21:58:38 GMT

I'm beginning to think you don't know what a 3d honeycomb is. There are two types of honeycomb infill patterns in the slicer (I use Slic3r). One is a plain honeycomb which is a 2d hexagon. This can be generated from a sketch by extruding the hexagon. The 3D honeycomb is a truncated octahedron. This cannot be extruded from a simple 2d sketch.

Re: Honeycomb 3d surface

dieselguy65 — Tue, 17 Oct 2017 22:07:24 GMT

You're still missing the point of what thr original poster was asking.
Honestly this has become a huge waste of time and resources.
It's a really simple concept, ,and yes i grasp it, and yes you still
aren't.
You have a good day, feel free to respond with unhelpful comments yet
again.
I'll not be wasting time on this.

Re: Honeycomb 3d surface

daniel_lyall — Tue, 17 Oct 2017 23:17:22 GMT

Just for fun attached is a 2D honeycomb run through fusions simulation with a 1Kg forces doing it horizontal and vertical, both are fine. Now if you do a 10 Kg test Horizontal is a fail big time.

I will try doing a 3D honeycomb for fun 2.

Re: Honeycomb 3d surface

Anonymous — Thu, 19 Oct 2017 21:21:15 GMT

Exactly.

That image of a honeycomb skin is what I want.

Extruding it right on flat surfaces or solids with flat surfaces its easy but I want it to be used on complex curved surfaces.

Imagine a car body or an airplane fuselage or wing that it´s what I´m going to use it for. The skin would be a sandwich with lets say 3 layers, one skin, a little space between like 0.7mm then a 3d honeycomb then another 0.7mm gap then another skin, the gaps are to force the printer to overlap the wall instead of printing the inner honeycomb thru the wall. The same kind of behaiviour you see when you set a slicer to do do an infil, the infil lightly overlaps the wall and bonds there, if the overlap is 100% it goes thru.

Re: Honeycomb 3d surface

Anonymous — Thu, 19 Oct 2017 21:26:40 GMT

This one?

This might be an option. I use simplify3d but don´t have it on this computer, will investigate later.

This is not exactly what I was thinkimng but it actually might print better than extruded exagons.

Thanks for the idea.

Re: Honeycomb 3d surface

I_Forge_KC — Thu, 19 Oct 2017 21:27:37 GMT

While not parametric, I would say look to something like this...

https://forums.autodesk.com/t5/fusion-360-design-validate/intern-shape/td-p/7440107

The software I mention can do about any shape and orientation lattice you can dream up (using beam elements anyway).

Re: Honeycomb 3d surface

Anonymous — Thu, 19 Oct 2017 21:28:40 GMT

Yes, Thats the kind of structure I was thinking about.

The voronoi plugin came to my mind the other day but never installed so I don´t know what can be set, will give it a try to see what it does.

Thanks for the idea.