topic Re: How to Shell a Loft Body in Fusion Design, Validate & Document Forum

How to Shell a Loft Body

neinspam2XVWZ — Sat, 27 Mar 2021 00:23:49 GMT

I created a vacuum nozzle with the Loft command and two rails. I can only seem to Shell from the bottom surface not the top. Ideally I want the nozzle open all the way through. What can trip up the shell command?

Re: How to Shell a Loft Body

engineguy — Sat, 27 Mar 2021 01:15:23 GMT

@neinspam2XVWZ

The Shell command does not go all the way through, that is the way it works, a shell is only open at one end, if you want it all the way through you can do something along the lines of the attached file.

It does "Shell" from the top down and the bottom up so there must be something wrong with your model, in design mode follow the steps in the History to see what I did to create the shape.

Re: How to Shell a Loft Body

daniel_lyall — Sat, 27 Mar 2021 01:33:43 GMT

Select one side then select the other then set the dimension, if you do the dimension first or after you select the first side you can only do one side.

Re: How to Shell a Loft Body

engineguy — Sat, 27 Mar 2021 01:39:43 GMT

@daniel_lyall

Learned something new, didn`t know it did that, nice !!!

Re: How to Shell a Loft Body

TheCADWhisperer — Sat, 27 Mar 2021 12:46:16 GMT

Can you File>Export your *.f3d file to your local drive and then Attach it here to a Reply?

Re: How to Shell a Loft Body

neinspam2XVWZ — Sat, 27 Mar 2021 15:01:38 GMT

Ok, I see a difference in your work flow from mine. I created 3 sketches and Loft between them. In your example it is a single sketch. I wouldn't think that matters, Loft didn't complain.

Is there something wrong about the top sketch that allows the Loft but not the Shell function?

Re: How to Shell a Loft Body

TrippyLighting — Sat, 27 Mar 2021 21:45:31 GMT

It seems that your 3rd sketch is a 3D sketch.

This does not require a 3D sketch, so I would recommend you start again from scratch with fully constrained and dimensioned 2D sketches. and then come back. Make sure you address any yellow icons in your timeline before posting 😉

Re: How to Shell a Loft Body

neinspam2XVWZ — Sun, 28 Mar 2021 00:26:27 GMT

Yes, 2D sketch worked, not sure why 3D wouldn't work the same.

The Loft body was created and I assume Shell works on the body not the sketch. Humm weird.

Re: How to Shell a Loft Body

TrippyLighting — Sun, 28 Mar 2021 02:08:22 GMT

@neinspam2XVWZ wrote:

Yes, 2D sketch worked, not sure why 3D wouldn't work the same.

It could work the same but is a pain to edit and adds unnecessary complexity to something very simple.

If a 2D sketch does the work there's no need to use a 3D sketch.

@neinspam2XVWZ wrote:

Yes, 2D sketch worked, not sure why 3D wouldn't work the same.

The Loft body was created and I assume Shell works on the body not the sketch. Humm weird.

Of course, the shell command works on a body. How would you shell a sketch?

Re: How to Shell a Loft Body

neinspam2XVWZ — Sun, 28 Mar 2021 13:32:04 GMT

Not that it would Shell a sketch, I wondered if perhaps the sketch/sketch type played a part in how the Shell function went about its business.

Re: How to Shell a Loft Body

TrippyLighting — Sun, 28 Mar 2021 13:52:11 GMT

@neinspam2XVWZ wrote:

Not that it would Shell a sketch, I wondered if perhaps the sketch/sketch type played a part in how the Shell function went about its business.

Ahh, no it would not.

I think the two arcs you used as rails created the problem.

But those aren't really needed. If you look at the loft options you can set the top profile from "connected" to "direction" and adjust the weight. That will likey give you what you want without the need for rails.