Community
Inventor Forum
Welcome to Autodesk’s Inventor Forums. Share your knowledge, ask questions, and explore popular Inventor topics.
cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

Failing to extract sketch as iFeature

3 REPLIES 3
Reply
Message 1 of 4
barnadaniel
389 Views, 3 Replies

Failing to extract sketch as iFeature

Hi,

 

I created the attached parametrized CF Flange iPart (one can change size, bored/blank, tapped/through, fixed/rotatable). I wanted to extract the cross-section sketches as iFeatures, so that I can reuse it also as sketches. I can extract the "Cross Section (Fixed)" sketch as an iFeature, but not "Cross Section (Rotatable)". I created this iPart file about half a year ago, and as far as I remember I created these two sketches in exactly the same way. Can somebody explain why it doesn't work?

 

Thank you very much

Danie

Tags (2)
3 REPLIES 3
Message 2 of 4
JDMather
in reply to: barnadaniel

I didn't bother to try to figure out what doesn't work, but -

why isn't the origin at the center of rotation?
why repeat dimensions rather than use equal = constraints?
why sketch both cross-sections of a revolved profile?

don't use projected sketch geometry in these sketches (tie to the origin).

don't use user workplanes - use origin workplanes.


-----------------------------------------------------------------------------------------
Autodesk Inventor 2019 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional


The CADWhisperer YouTube Channel


EESignature

Message 3 of 4
barnadaniel
in reply to: JDMather

Hi,

 

Thanks for your comments.

 

"why isn't the origin at the center of rotation? don't use user workplanes - use origin workplanes! don't use projected geometry, tie to the origin"

 

The answer to these comments is that if I then want to extract anything from this file as an iFeature, which I can place anywhere in another part (the revolved body, or the sketch), it *must not* be constrained to the global coordinate system. This was discussed here: http://forums.autodesk.com/t5/Autodesk-Inventor/Reference-geometry-other-than-sketch-plane-for-iFeat...

 

"why repeat dimensions rather than use equal constraints?" - you are right.

Message 4 of 4
JDMather
in reply to: barnadaniel

The part should be created at the origin.
Coincident constraints can be deleted.

Maybe I haven't taken a long enough look at this part - why isn't it an iPart rather than an iFeature that you are after?


-----------------------------------------------------------------------------------------
Autodesk Inventor 2019 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional


The CADWhisperer YouTube Channel


EESignature

Can't find what you're looking for? Ask the community or share your knowledge.

Post to forums  

Autodesk Design & Make Report