topic Re: Add infill to closed, shelled body in Fusion Design, Validate & Document Forum

Add infill to closed, shelled body

davethomaspilot9V8SL — Sat, 27 Jan 2024 18:10:05 GMT

Say you have a 100% closed body, like a box. It doesn't need to be solid, so I perform a shell on it.

But, now I can't 3d print--I need infill. I'm thinking I should add it to the design rather than do it in a slicer? But, how to design "inside the box"?

Do I need to split the body to create a sketch on an inside face of the box, design the infill, then combine the bodies (or leave them separate and export both as a mesh to a slicer)?

Betreff: Add infill to closed, shelled body

wersy — Sat, 27 Jan 2024 18:20:29 GMT

Don't shell a body for printing. You can't infill in hollow space,
Control the shell by perimeters.

You can upload you file and tell us what you exactly want.

Betreff: Add infill to closed, shelled body

davethomaspilot9V8SL — Sat, 27 Jan 2024 18:31:46 GMT

I think the question is pretty clear.

Solid box. How to make it hollow except for adding infill.

Do I need to create a design of a cube and upload it to illustrate?

Betreff: Add infill to closed, shelled body

TrippyLighting — Sat, 27 Jan 2024 19:14:33 GMT

Controlling infill us usually best done in the slicer.

If your design has very special requirements, you should shell the object and then manually add infill.

If you have further questions on a specific design, then please share the model.

Adding a section view can make it easier to model on the interior of an otherwise fully enclosed object.

Betreff: Add infill to closed, shelled body

davethomaspilot9V8SL — Sat, 27 Jan 2024 19:54:46 GMT

The cube is shelled. ( as indicated in the title of the post. ) But I cannot select inside the cube to design the infill.

I think i can split the body, hide one of the resulting bodies, design the infill, then combine the bodies.

Is there a better way?

Add infill to closed, shelled body

davethomaspilot9V8SL — Sat, 27 Jan 2024 19:55:24 GMT

The cube is shelled. ( as indicated in the title of the post. ) But I cannot select inside the cube to design the infill.

I think i can split the body, hide one of the resulting bodies, design the infill, then combine the bodies.

Is there a better way?

Re: Add infill to closed, shelled body

davethomaspilot9V8SL — Sat, 27 Jan 2024 19:56:36 GMT

Section view! Got it.

Re: Add infill to closed, shelled body

laughingcreek — Sat, 27 Jan 2024 20:05:00 GMT

@davethomaspilot9V8SL wrote:

The cube is shelled. ...

why? it will be easier (as in an automated process instead of a manual one) to add infill if you don't shell it first.

Re: Add infill to closed, shelled body

davethomaspilot9V8SL — Sat, 27 Jan 2024 20:56:04 GMT

I have no clue how to do it without shelling it first.

I have a solid object. Cube is an easy example, but the real example has a complex outer surface. I want a shelled object, but infilled so it can be 3d printed.

I'm happy to design the infill.

What's an automated process to do it?

Re: Add infill to closed, shelled body

davethomaspilot9V8SL — Sun, 28 Jan 2024 02:08:59 GMT

A little more detail...

The "infill" needs to be designed to facilitate convection cooling. So, I'm worried an arbitrary infill from a slicer like Cura won't fill with a good structure that allows airflow.

Thanks for the replies!

Re: Add infill to closed, shelled body

laughingcreek — Sun, 28 Jan 2024 04:20:43 GMT

and down the rabbit hole we go.

maybe post a sketch of what you are trying to do.

could be we are stuck on semantics. you keep saying "infill", but sounds like you want to use the infill as "supports". to different functions really.

and now it needs to be functional for convection cooling (on a closed object?)

if you have a paid subscription you might explore "volumetric lattice" . I use the gyroid shape frequently for resin printing. drains well, doesn't need addition support to print, and the strongest infill shape I have found. volumetric lattice allows for a custom shape that might suit your purposes.

Re: Add infill to closed, shelled body

etfrench — Sun, 28 Jan 2024 05:58:52 GMT

Create a body larger than the current body. Combine/Cut the current body from the new body keeping the tools and creating a new component. Remove or hide the outer body in the new component (as well as hiding the original bodies). This will leave you with a precise inner body of the shelled original. Design your 'infill' in this body.

Re: Add infill to closed, shelled body

davethomaspilot9V8SL — Sun, 28 Jan 2024 10:26:12 GMT

I knew I should have stuck with just a cube for the purpose of getting the answer I needed...

The closed shape is actually "perforated" with holes to allow air ingress. But, all I was really missing was how to design "inside the box".

I do have a paid subscription, but the task is already completed.

Betreff: Add infill to closed, shelled body

darkraids411 — Wed, 18 Sep 2024 16:35:37 GMT

I have a can koozie model i have struggling to add infill to the hallow section beween the 2 sidewalls any insight there?

Betreff: Add infill to closed, shelled body

wersy — Wed, 18 Sep 2024 17:39:18 GMT

Please upload the file so that we can take a look at it.

Betreff: Add infill to closed, shelled body

wersy — Thu, 19 Sep 2024 11:28:40 GMT

@davethomaspilot9V8SL schrieb:
I think the question is pretty clear.

Solid box. How to make it hollow except for adding infill.

Do I need to create a design of a cube and upload it to illustrate?

This is a closed box

This is how you can slice it with your slicer for printing.