topic Re: Sweeping in Fusion Design, Validate & Document Forum

Sweeping

wweikert — Fri, 10 Nov 2017 10:32:08 GMT

Hey guys,

I'm trying to sweep a profile along a curved path.

What can I do to keep the vertical lines of the profile vertical? Right now the profile is 'tilting' into the curve, but that's not what I want.

Here you can access my design: http://a360.co/2zsurZt

Thanks in advance!

Re: Sweeping

Ezekiel12 — Fri, 10 Nov 2017 14:21:47 GMT

Well... i dont know if I understand correctly, but it is tilting, because you created it it tilting.

I attached my file, where it is vertical to the line, because it sits on it vertical. But maybe I didnt understand something.

Re: Sweeping

wweikert — Fri, 10 Nov 2017 14:34:40 GMT

Thanks for your answer!

This tilting angle was actually on purpose.
What I want is to keep the bottom line of the profile horizontal at all the time.
This seems to be more of a geometrical Problem.

This is how far I came by creating a 'guiding rail' (German: Führungsschiene):

But I want to avoid the marked corner to be smooth. I guess this won't be possible using 2D sketches?

Re: Sweeping

Ezekiel12 — Fri, 10 Nov 2017 14:40:01 GMT

You mean, like this?

Re: Sweeping

wweikert — Fri, 10 Nov 2017 14:53:30 GMT

More like that but with the marked corners smooth:

Re: Sweeping

SaeedHamza — Fri, 10 Nov 2017 16:15:33 GMT

create a plane along path using thee curve and then sketch your profile on that plane

Re: Sweeping

wweikert — Fri, 10 Nov 2017 17:58:08 GMT

This is more or less the object I wanted to create. Any ideas how to do that in Fusion?

Re: Sweeping

jasonhomrighaus — Fri, 10 Nov 2017 18:59:12 GMT

Just to understand you want the curved areas to be tilted onto a different plane then the long areas?

Re: Sweeping

wweikert — Fri, 10 Nov 2017 19:10:27 GMT

The curved parts actually aren't on a plane, more on a curved plane.

If you think of the inside of whole object as a tunnel, I want the floor to stay horizontal all the time.

Re: Sweeping

jasonhomrighaus — Fri, 10 Nov 2017 19:11:22 GMT

Well this is one try at it.

Re: Sweeping

wweikert — Fri, 10 Nov 2017 19:42:57 GMT

Thanks for your help, but this object has the same problems as in Post 5.

The Object I created with another Software is pretty close to the one I want to create in Fusion.

Re: Sweeping

jasonhomrighaus — Fri, 10 Nov 2017 20:23:29 GMT

Here try this one, i used an offset guide rail then selected the profile and guide rail option, can make a vid if you want to flatten the base I used an offset plane and split the body, from there you could sweep on a base profile on the flat plane if you wanted.

Re: Sweeping

davebYYPCU — Fri, 10 Nov 2017 20:35:40 GMT

Your tunnel is doable, but not completely with sweep, you need the U-turn to be a Loft, due to the change of profile orientation involved at the centre of the end path curve.

you may have to realign - redesign the profiles to suit your design,

you and @jasonhomrighaus, have yellow warnings to avoid and fix.

file attached , edit my loft feature to see the settings,

might help....

Re: Sweeping

wweikert — Fri, 10 Nov 2017 20:36:46 GMT

Thank you all very much, @davebYYPCU thats exactly what I imagined!

Re: Sweeping

davebYYPCU — Fri, 10 Nov 2017 20:42:14 GMT

No problem, happy to help if I can...

Re: Sweeping

jasonhomrighaus — Fri, 10 Nov 2017 21:14:14 GMT

The yellow warnings was because I deleted bunch of extra sketches i had in there. The Sweep feature allows you to do this without the lofting step, the difference is to have an offset guide rail. it will leave a short gap as the sweep cannot self intersect but a quick extrude closes it all up.

Im still not sure i understood, you wanted the floor to curve like that in the corner? if so just do what i said but dont cut off the bottom edge. this is how it looks before being cut

Re: Sweeping

wweikert — Fri, 10 Nov 2017 21:33:48 GMT

You're right @jasonhomrighaus, without cutting your solution is like I thought, thank you. I'll look deeper into that tomorrow. Thanks!

Re: Sweeping

wweikert — Sun, 12 Nov 2017 13:32:19 GMT

The final result:

I used lofts for the U-turns and sweeping for the straight paths.
Sweeping alone led to a tilt at the lower U-turn, at least with this profile and radius.

Re: Sweeping

Anonymous — Mon, 05 Feb 2018 12:22:58 GMT

I have been trying to figure out why sweep wasn't working (OK button always disabled) and you simple little comment solved the whole thing!

I have watched videos from Fusion, read the documentation I can find, and NOTHING says that for a simple profile/path sweep to work, that they have to be somehow connected.

In my case I used your idea of the plane along a path and did my profile sketch there with one corner coincident with the origin.

Thank you very much.