Negative offsetting faces from hollow space / void fails

[kreatronik]

Hi,
In my design, I want to place a magnet during 3D printing and wanted to increase the hollow space for it, but I get this error message:

Can you assist me with this problem?
I added a box beside to test the offset tool there with a rectangular hollow space to see if the rounded shape is causing the problem, but also there I get the same error.

Thanks and regards,
Hannes

[g-andresen]

Hi,

please share the file for reply 

File >export >save as f3d on local drive > attach to post

günther

[kreatronik]

Hey Günther,
I had already attached the file in my post 🙂

[TheCADWhisperer]

@kreatronik 

Why not simply edit the sketch/extrusion?

[johnsonshiue]

Hi! This is an interesting request. I think your intent is to preserve the cylindrical face size but move it downward and all the lateral faces extend accordingly. Additionally, the cylindrical face should remain tangent to the two side faces. The failure is due to the fact that Fusion attempts to move the cylindrical face as a whole, not as a half cylinder. I cannot find a desirable transformation workflow other than editing the sketch as JD pointed out.

Many thanks!

[kreatronik]

Because I have 2 "pockets" (and these mirrord) to place magnets and just want to modify one offset in the parameters' table to change it. If I do it manually, I would have to alter the sketch AND the extrusion/cut.

[kreatronik]

Hello Günther, could you please have a look at it? 🙏

[KristianLaholm]

Extrude is the most basic tool in Fusion but can do some interesting "tricks".

Extrude: 
Profile = Flat face opposite the half circle face.
Start = Object

Object = Half circle face.
Set the distance = I did 5mm

[wersy]

Thank you for sharing!
I never thought it could work this way.

[lauri_barnhart]

Hello, @kreatronik,

Just checking in—did the responses shared by @g-andresen or @KristianLaholm help clarify your question?

If so, please consider clicking the "Accept Solution" button. Doing so helps others in the community easily find useful answers.

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Lauri | Community Manager