Inventor General Discussion

Inventor General Discussion

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Distinguished Contributor
gryles
Posts: 107
Registered: ‎10-10-2009
Message 1 of 14 (3,247 Views)

converting a .dwg file to a solid

3247 Views, 13 Replies
02-01-2010 10:04 PM
Hi

Is it possible to convert a .dwg file into a solid model using Inventor 2010?

I have attached a wireframe electric motor in .dwg format.

Cheers

Greg
Inventor 2012
Member
victor.tolentino
Posts: 5
Registered: ‎02-02-2009
Message 2 of 14 (3,247 Views)

Re: converting a .dwg file to a solid

02-02-2010 04:14 AM in reply to: gryles
Hi,

Try to follow the procedure attached.

Regards,

Victor Tolentino
*Expert Elite*
JDMather
Posts: 26,879
Registered: ‎04-20-2006
Message 3 of 14 (3,247 Views)

Re: converting a .dwg file to a solid

02-02-2010 04:52 AM in reply to: gryles
> have attached a wireframe

It is not a wire frame - it is 12931 faceted planar surfaces. I think I would use a reference to remodel. About a hours work would result in a much prettier and smaller (file size) model.


The faceted solid model is 10.5 MB. Modeled from scratch would probably be a tenth of that size and look much better (see attached).
Please mark this response as "Accept as Solution" if it answers your question.
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*Expert Elite*
JDMather
Posts: 26,879
Registered: ‎04-20-2006
Message 4 of 14 (3,247 Views)

Re: converting a .dwg file to a solid

02-02-2010 05:16 AM in reply to: gryles
I would do a quick drawing and then use the dimensions to recreate using Revolved and Extrudes.
Please mark this response as "Accept as Solution" if it answers your question.
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Distinguished Contributor
gryles
Posts: 107
Registered: ‎10-10-2009
Message 5 of 14 (3,248 Views)

Re: converting a .dwg file to a solid

02-02-2010 10:59 AM in reply to: gryles
Thank you
Inventor 2012
Active Contributor
Mark.Hopkins
Posts: 36
Registered: ‎07-28-2009
Message 6 of 14 (2,531 Views)

Re: converting a .dwg file to a solid

05-20-2012 10:18 PM in reply to: gryles

Has anyone ever had the problem in inventor, when you open an autocad dwg file, the options button is greyed out and you can't chose or change anything?

 

 

Distinguished Mentor
pcrawley
Posts: 695
Registered: ‎05-23-2002
Message 7 of 14 (2,521 Views)

Re: converting a .dwg file to a solid

05-21-2012 12:54 AM in reply to: gryles

Open the DWG in AutoCAD Mechanical - save it as an IGES file - then import the IGES file into Inventor.

(Tends to make stupidly large files - quick sketch and a revolve is a MUCH better suggestion.)

Peter
Active Contributor
Mark.Hopkins
Posts: 36
Registered: ‎07-28-2009
Message 8 of 14 (2,519 Views)

Re: converting a .dwg file to a solid

05-21-2012 01:11 AM in reply to: gryles

Hey thanks Peter,

 

Initially I had trouble exporting from AutoCAD to iges as it didnt export some of the wireframe. I think it had something to do with surfaces or something (I have very limited autocad 3d moddeling experience so not too sure)

 

 In autocad I then exploded everything I could, there seemed to be blocks within blocks. And then saved as a STEP file. It created a single solid which is usable in Inventor. (for civil foundations)

 

The part created is opaque, so im not sure how to get looking like a solid.  Changing the colour didnt help.

So ive almost been sucessfull, and almost there.

 

Any advantages in using IGES over STEP?

Distinguished Mentor
pcrawley
Posts: 695
Registered: ‎05-23-2002
Message 9 of 14 (2,511 Views)

Re: converting a .dwg file to a solid

05-21-2012 02:46 AM in reply to: Mark.Hopkins

Right-click the surface model in the Inventor browser and remove the tick from "Translucent" - but it's still a surface model.  

 

Really - the time you've spent on it so far would have been much better spent modelling it as a couple of sketches and features!  (Have you had a look at look at the file size?)

Peter
Active Contributor
Mark.Hopkins
Posts: 36
Registered: ‎07-28-2009
Message 10 of 14 (2,509 Views)

Re: converting a .dwg file to a solid

05-21-2012 03:16 AM in reply to: gryles

Not a problem, the ipt file created  is 4mb

 

The issue is the dwg file is complicated enough to not want to reproduce the work again. The AutoCAD files are supplied by a 3rd party, I would rather import thier data than risk making a mistake reproducing it. I also hate having to do things twice

 

For myself this is likely to be required more often in the future, so I would rather spend a little time figureing it out now and save time in the future.

 

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