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I can not extrude up, only down

10 REPLIES 10
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Message 1 of 11
tbenkerE2YG2
206 Views, 10 Replies

I can not extrude up, only down

I am a new to fusion 360.  I designed a simple tolerance gauge for 3d printer in component1 . printed OK. Based on the results i wanted to  created  a components exactly the same but narrower range. I created the sketch the same way i did for the first. When i try to extrude, Fusion only allowed me to pull it downwards but not upwards. When i set direction to up it does not show any preview, when I click ok, it places a extrude icon in the timeline and creates a body in the browser but there is no extruded body at all. Visibility for the body is on. 

 

Everything in the sketch are constrained.  Sketch has text as labels to be embossed after extrusions. I suspect it might be causing the issue but at the same time i did the same in my component too. Besides deleting all did not solve the problem either.

 

If i choose to extrude downwards, it extrudes as normal without any issues and the body is visible. 

 

What may be the reason?

10 REPLIES 10
Message 2 of 11
jeff_strater
in reply to: tbenkerE2YG2

do you by any chance have a Section Analysis active in your model?

Screenshot 2023-12-28 at 7.55.51 AM.png


Jeff Strater
Engineering Director
Message 3 of 11
g-andresen
in reply to: tbenkerE2YG2

Hi,

please show your process in a screencast and share the file

 

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

 

günther

Message 4 of 11
tbenkerE2YG2
in reply to: jeff_strater

No. It was just a simple sketch. 6 rectangular boxes with 0.2  decrements in their dimensions and embossed labels underneath. 

Message 5 of 11
tbenkerE2YG2
in reply to: g-andresen

As i mentioned above It was just a simple sketch. I just deleted the component and created a new. This time it worked just like the first component. Though i am curious what might have avoided me to extrude upwards.

 

I am posting the screen shot of the final design just to give you an idea how it looks. If you might have gone wrong with such design. Though i doubt it. I cleared the evidence.

Message 6 of 11
jeff_strater
in reply to: tbenkerE2YG2

I do not see a screen shot of the design with your post.  But, more importantly, as @g-andresen suggests, we need the actual model.  Export as a Fusion Archive, and attach it to your next post.


Jeff Strater
Engineering Director
Message 7 of 11
tbenkerE2YG2
in reply to: tbenkerE2YG2

fusion gauge.png

Message 8 of 11
tbenkerE2YG2
in reply to: tbenkerE2YG2

I am sorry it seem i could not upload first time. I manage to replicate the problem.  As you can see from the screenshot The bottom of whole parts share the same plane. So when i select everything and exrude them to 0.5 mm at the same time, i can no longer extrude the gauge boxes and text upwards but only downwards.  If I extrude the gauge boxes first then the rest of the face everything works OK. I could not understand why it does not work the other way?

Message 9 of 11
tbenkerE2YG2
in reply to: tbenkerE2YG2

now I created a new component within the same file to test. Create a rectangle in another one and extruded both to 1 mm at once. When I try to extrude the inner rectangle again Fusion initially proposed cut but when I selected join, it joined without  any issues. I did not even need to set any offset.  So unknowingly I set something awkward in the other component before starting to sketch.

Message 10 of 11
jeff_strater
in reply to: tbenkerE2YG2

I'm still not entirely sure what does not work.  But, based on this description: 

 

"now I created a new component within the same file to test. Create a rectangle in another one and extruded both to 1 mm at once. When I try to extrude the inner rectangle again Fusion initially proposed cut but when I selected join, it joined without  any issues. I did not even need to set any offset.  So unknowingly I set something awkward in the other component before starting to sketch"

 

I assume the problem was in the component "gauge", not in. "finer gauge".  I had no trouble extruding both ways from this sketch.  If something else is going wrong, please explain in more detail.  Thanks.


Jeff Strater
Engineering Director
Message 11 of 11

@tbenkerE2YG2 

I notice that your first sketch is more complicated than necessary and even has duplicate lines over top of lines.

Would you like to learn how to simplify this with step-by-step instructions?

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