topic Re: Pipe on a grid with intersecting lines in Fusion Design, Validate & Document Forum

Pipe on a grid with intersecting lines

tripleSheva — Tue, 09 Apr 2024 21:15:24 GMT

I'm trying to design an enclosure, and I'd like to be able to just `Select Pipe` > `Select all sketch lines` and go. However - because, I assume I have some sharp angles and intersections - it doesn't quite work. Getting the "The sweep could not create a valid body. Try changing the profile or path, or adjusting the operation values." error, but I'm not quite sure what "adjustments" I need to do.

I could probably pipe the outer frame first, and then have another pipe for the inner sections, but I'd prefer to be able to do it in one operation. Am I missing something, or is this just a limitation of the Pipe function?

Re: Pipe on a grid with intersecting lines

davebYYPCU — Tue, 09 Apr 2024 22:09:02 GMT

We don’t know if the Pipe is round, square or triangle profile.

The sketch is too complicated for Fusion to know what you want, single step selections will dictate a result.

Sweep the external boundary to get mitred corners, pipe will not extend past the extent if it’s centre line.

Might help….

Re: Pipe on a grid with intersecting lines

tripleSheva — Wed, 10 Apr 2024 00:48:16 GMT

It's a round pipe, but that doesn't matter. The issue is indeed that Fusion doesn't know how to pipe in different directions. I ended doing multiple pipe (join) operations.

Now that I created the component (two copies), how can I create the connecting pipes between the copies, at each intersection of the profile? Creating a sketch for each "elevation" doesn't feel right to me.

Re: Pipe on a grid with intersecting lines

davebYYPCU — Wed, 10 Apr 2024 00:58:03 GMT

Of course it matters, square pipes would be extrude.

One sketch, circles at the intersections required, and extrude all joiners.

Might help….

Re: Pipe on a grid with intersecting lines

tripleSheva — Wed, 10 Apr 2024 11:44:56 GMT

Sorry, I meant that it doesn't matter for the Pipe command. It cannot handle it regardless of the profile selected.

As for your solution, it works, but it also means I have to manually select every segment of every pipe (almost 50 of them), to extrude this. And if I decide to change my sketch afterwards, I'll have to redo all the extrusions. Is there no better way?

Re: Pipe on a grid with intersecting lines

davebYYPCU — Wed, 10 Apr 2024 11:53:12 GMT

The joiners would be in a separate sketch at my place.

Project centre points, from the frame. Draw, pattern the circles, and Thin Extrude tubes.

Almost 50 of them, huh? I count 11 in one frame.

When you work smart, you have one frame, copied not a copied sketch.

Might help….

Re: Pipe on a grid with intersecting lines

tripleSheva — Wed, 10 Apr 2024 11:56:37 GMT

50 some pieces, yeah. Because the lines break the circles when it's all in one sketch. 😄

I didn't want to create another sketch and project so many points onto it, but I guess that's the way to go. Thanks!

Re: Pipe on a grid with intersecting lines

davebYYPCU — Wed, 10 Apr 2024 12:03:35 GMT

Not for me to stop you doing it any way that suits,

lots of simple sketches will make Fusion happier than you.

Might help….