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dknaggert
Posts: 165
Registered: ‎01-26-2004
Message 1 of 4 (323 Views)

Import 3Dpoly

323 Views, 3 Replies
03-11-2012 09:03 AM

Hi,

How can I import a 3DPoly from Autocad into Inventor to use as path for a swepped profile for a barrel cam?

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JDMather
Posts: 26,161
Registered: ‎04-20-2006
Message 2 of 4 (322 Views)

Re: Import 3Dpoly

03-11-2012 09:10 AM in reply to: dknaggert

File Open and set Options?
Why not create the path directly in Inventor rather than using AutoCAD?
Be very careful that you get the true geometry that you are expecting -

this is an old tutorial http://home.pct.edu/~jmather/content/DSG322/Inventor%20Tutorials/Inventor%2011%20Tutorial%2011.pdf

but it points out the difficulty in gettting the true geometry.

It is now easier since additional options were added to Sweep (w guide surface), but you still have to be very careful.

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Distinguished Contributor
dknaggert
Posts: 165
Registered: ‎01-26-2004
Message 3 of 4 (318 Views)

Re: Import 3Dpoly

03-11-2012 09:51 AM in reply to: JDMather

What I know about Inventor is: I haven't even installed it yet. What I do now is the following, I create the points with generally 0.25 degrees resolution in Mathcad, create a script file with all the points and with "3Dpoly" on top. That creates the curve in Autocad - no problem at all. Where the problem comes in is that Autocad can loft this into a solid as shown, but in no way can I select 1440 point by hand to create the profile. And _sweep doesn't work because the profile doesn't stay parallel to, let's say, the Z-Axis. So, I am looking for an Alternative.

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JDMather
Posts: 26,161
Registered: ‎04-20-2006
Message 4 of 4 (310 Views)

Re: Import 3Dpoly

03-11-2012 10:38 AM in reply to: dknaggert

dknaggert wrote:

What I know about Inventor is: I haven't even installed it yet.  So, I am looking for an Alternative.


Sounds like you might be doing too much work as the tools are already built into Inventor.

 

Cylindrical Cam.png

 

Simply an exercise in filling dialog boxes.

Please mark this response as "Accept as Solution" if it answers your question.
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Certified SolidWorks Professional
Inventor Professional 2015 64-bit
http://www.autodesk.com/edcommunity
http://home.pct.edu/~jmather/content/DSG322/inventor_surface_tutorials.htm

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