How to scale only one face?

[Anonymous]

Hello! I am very new to Fusion, and have a question about scaling faces. It would be nice if the fillet tool could take two radii so that the fillet could be ellipse shaped. So I'm trying to get around that limitation.

What I'm doing is scaling the object in one axis, and then I want to scale the center face smaller. You can see in this diagram. The outer object is there for reference. The inner object is the one I'm trying to change. If I could scale the blue face smaller, I could get the effect I want. But whenever I try to scale the face, the whole object gets selected and scaled instead.

The effect I'm going for is that of a shallow depression that isn't steep. I want the curve to extend further into the object. If I could just scale the selected face smaller, that would fix my problems. I know I have somewhat fixed my problem already by scaling my whole object in one direction. But it isn't enough. The blue object needs to be the same size and dimensions as the enclosing object, disregarding the fillet:

Thanks for any help, I've been struggling with this for a long time.

Edit: I realize that I could fix my problem by increasing the radius of the outer corners of the box. But I don't what those corners to change.

Henning

[TheCADWhisperer]

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

[Anonymous]

Here is the file. Sorry - I should have thought of attaching it.

[TheCADWhisperer]

---

@Anonymous wrote:
I am very new to Fusion...

---

Sketch1 is not fully defined.  Blue lines should keep you awake at night.

There is no need to repeat dimensions - use Equal (=) constraints.

Model with obvious symmetry about the Origin, not just anywhere in space.

Fillets should (almost) always be modeled as Placed Features rather than Sketch elements.

[Anonymous]

I'm sorry, but I don't know what any of these things mean. How do I fix them, and how does fixing them solve my problem?

Edit: I watched a video tutorial and have full defined my sketch. I have also placed my objects perfectly around the origin. This fixes some issues, but I don't know how this will solve my problem.

Edit 2: I have also removed some duplicated dimensions, and added some = constraints. I thought that this might fix my problem, because you suggested fixing this, so I tried to make an extrusion from my sketch, but that doesn't work anymore. I can no longer extrude the sketch. I've attached my new file. "can not extrude new sketch.f3d"

Edit 3: I figured out why I couldn't extrude. The container of the sketch wasn't visible. Stupid mistake. So I extruded the fully defined sketch, and tried to scale the face, but it didn't work.

[g-andresen]

Hi,

Is that what you want to achieve in the end?

günther

[Anonymous]

No, not really. I am actually going to use this part to cut a bowl out of a cube. And I want the bowl to have a flat bottom with a gradual slope up to the edge. The problem is that I can't make the slope gradual. Here's a drawing:

 

The part within the dashes is this part that I'm making now.

[g-andresen]

Hi,

You can create the profile according to your own ideas and cut it out of the body with the sweep tool.

Screencast

günther

[Anonymous]

Ah, ok, understand better now. That looks very promising. What do I do if I want to start with a box I've already created (it has other features already)? I have the box, I have the rectangular cavity. Now I need to add that little profile curve and sweep it around.

[g-andresen]

Hi,

Check again in the screencast how I created an offset in the first sketch.

You can also project the box profile into a new sketch as a basis and then create the offset.

günther

[Anonymous]

Thanks for attaching the file, but your design still contains the problem that I'm trying to solve. Each of the corners has the same radius in xy plane as it does in the xz and yz planes.

[g-andresen]

Hi,

What's stopping you from changing that. I have only used your base.
If possible, you should always create fillets on the solid (not in sketch!), e.g. by sweeping.

Günther

[Anonymous]

Edit: I'm sorry, I just don't understand what you're doing in the screencast.

Original: Ok, I cannot edit the example file you gave me. I tried to change the shape of the paths to no avail. So I'm just trying to create my own path like this, and I get a boolean error. This is just to test trying to get a sweep to work. I have not been able to get the sweep to work through the corner.

 

[Anonymous]

The closest I've gotten is this. I create a sketch of a square. Then I extrude it. Then I add a path to one of the faces:

 

Then I sweep it around the path:

So far so good. But this is where things go bad. I edit the original sketch of the square to start adding rounded corners. That doesn't work. Here I added one rounded corner to the sketch. It didn't work. Changing all four doesn't work either.

 

[g-andresen]

Hi,

The profile has to be perpendicular to the path!
Look at the position of the sketches in the attached file. > “sweep profile”

Günther

[Anonymous]

It is perpendicular. The profile is in ZY and the path is in XY.

[davebYYPCU]

Profile of the floor can be a filleted rectangle, and still be accommodated.

Might help.....

[Anonymous]

Okay, I'll take a look, thanks.

[Anonymous]

Do you have any guidance on how to create this? I'm looking at this and don't know how you did it.

[g-andresen]

Hi,

---

@Anonymous  schrieb:
…. I'm looking at this and don't know how you did it.

---

follow the timeline and analyze  the features

günther