Inventor General Discussion

Inventor General Discussion

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Distinguished Contributor
dick_upton
Posts: 646
Registered: ‎02-25-2009
Message 1 of 7 (397 Views)
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AutoCAD sketch objects result in very slow Inventor sketch - Inventor 2014

397 Views, 6 Replies
02-12-2014 12:51 PM

Every time I must copy a set of objects from an AutoCAD drawing to an Inventor part, I work diligently to reduce the number of objects. This time, DBCOUNT command reveals there are just 857 AutoCAD objects - lines, circles, arcs - being copied to the sketch.

 

Still, Inventor struggles to handle this very simple sketch

 - when rotating

 - when moving

 - when indentifying closed boundaries for extrude commands.

 

Are there any strategies anyone has found to make Inventor more ligth on its feet when dealing with sketches brought in from Pasted AutoCAD objects?

Well, I would consider that to be a very complex sketch for Inventor (I recommend 7-10 entities max per sketch).

It looks like a lot of repeated sketch geometry (I recommend using feature patterns rather than sketch patterns).

 

Maybe lock down the sketch block, and then create new sketches and Project Geometry as needed from the sketch block.

(or get rid of repeated geometry, might break up into several sketch blocks and repeat blocks instead)

I think your best bet is to Project Geometry as needed to new sketches using the imported only as a master sketch.

*Expert Elite*
JDMather
Posts: 27,573
Registered: ‎04-20-2006
Message 2 of 7 (390 Views)

Re: AutoCAD sketch objects result in very slow Inventor sketch - Inventor 2014

02-12-2014 12:56 PM in reply to: dick_upton

First thing I would do is turn it into an Inventor Sketch Block.

Please mark this response as "Accept as Solution" if it answers your question.
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Distinguished Contributor
dick_upton
Posts: 646
Registered: ‎02-25-2009
Message 3 of 7 (384 Views)

Re: AutoCAD sketch objects result in very slow Inventor sketch - Inventor 2014

02-12-2014 01:12 PM in reply to: JDMather

THanks JD - that made it quick to move and rotate.

 

But, it still struggles for about a minute to identify the boundaries. Still, any improvement is greatly welcome!! Thank you.

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JDMather
Posts: 27,573
Registered: ‎04-20-2006
Message 4 of 7 (368 Views)

Re: AutoCAD sketch objects result in very slow Inventor sketch - Inventor 2014

02-12-2014 01:54 PM in reply to: dick_upton

Well, I would consider that to be a very complex sketch for Inventor (I recommend 7-10 entities max per sketch).

It looks like a lot of repeated sketch geometry (I recommend using feature patterns rather than sketch patterns).

 

Maybe lock down the sketch block, and then create new sketches and Project Geometry as needed from the sketch block.

(or get rid of repeated geometry, might break up into several sketch blocks and repeat blocks instead)

Please mark this response as "Accept as Solution" if it answers your question.
-----------------------------------------------------------------------------------------
Autodesk Inventor 2014 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional
Inventor Professional 2015-SP1 64-bit
http://www.autodesk.com/edcommunity
http://home.pct.edu/~jmather/content/DSG322/inventor_surface_tutorials.htm
Distinguished Contributor
dick_upton
Posts: 646
Registered: ‎02-25-2009
Message 5 of 7 (332 Views)

Re: AutoCAD sketch objects result in very slow Inventor sketch - Inventor 2014

02-13-2014 06:30 AM in reply to: JDMather

I'll grant you that it's got a lot of objects, but - just as you can defer updates in the model environment - it might be helpful to have a "define boundary" manual mode (ala MDT) instead, so Inventor wouldn't have to chug through all the objects and suggest all closed loops. I'm sure there are complications with this workflow and they've probably already looked at this. Thanks for the thoughts on this JD.

*Expert Elite*
JDMather
Posts: 27,573
Registered: ‎04-20-2006
Message 6 of 7 (325 Views)

Re: AutoCAD sketch objects result in very slow Inventor sketch - Inventor 2014

02-13-2014 06:35 AM in reply to: dick_upton

I think your best bet is to Project Geometry as needed to new sketches using the imported only as a master sketch.

Please mark this response as "Accept as Solution" if it answers your question.
-----------------------------------------------------------------------------------------
Autodesk Inventor 2014 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional
Inventor Professional 2015-SP1 64-bit
http://www.autodesk.com/edcommunity
http://home.pct.edu/~jmather/content/DSG322/inventor_surface_tutorials.htm
Distinguished Contributor
dick_upton
Posts: 646
Registered: ‎02-25-2009
Message 7 of 7 (266 Views)

Re: AutoCAD sketch objects result in very slow Inventor sketch - Inventor 2014

02-14-2014 08:17 AM in reply to: JDMather

Thanks! Another great suggestion.

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