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samu3
Posts: 57
Registered: ‎06-13-2008
Message 1 of 5 (487 Views)

Importing Acad 3D polylines to ipt 3D sketch

487 Views, 4 Replies
12-14-2012 02:20 PM

Hi all,

 

I am trying to import Acad 3D polylines to an Inventor ipt 3D sketch via insert -> Acad etc.

 

Sometimes the segments between vertices come in just fine (see first pic), but other times they are all squiggly (second pic). What could possibly cause this?

 

The Acad polylines are true 3D lines with varying X, Y and Z. I need to bring the lines to Inventor in order to sweep along them. I am using Autocad and Inventor 2013.

 

Thanks!


Samu

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JDMather
Posts: 26,356
Registered: ‎04-20-2006
Message 2 of 5 (453 Views)

Re: Importing Acad 3D polylines to ipt 3D sketch

12-15-2012 09:07 AM in reply to: samu3

Attach dwg file here.

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Valued Contributor
samu3
Posts: 57
Registered: ‎06-13-2008
Message 3 of 5 (447 Views)

Re: Importing Acad 3D polylines to ipt 3D sketch

12-15-2012 10:18 AM in reply to: samu3

I think I may have figured it out. On the left hand sideof the attached pic is the result when I am using the attached dwg file as is. I tried moving the objects close to 0,0,0 and the result is on the right hand side of the - perfect!

 

Why would this be? I was hoping to be able to use the original coordinate values in order to retain the actual position.

 

Thanks,

Samu

 

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JDMather
Posts: 26,356
Registered: ‎04-20-2006
Message 4 of 5 (425 Views)

Re: Importing Acad 3D polylines to ipt 3D sketch

12-15-2012 05:23 PM in reply to: samu3

This geometry doesn't make sense to me.
What is your design intent?

I drew an arc overtop one of the splines and it is identical.

Why are you trying import splines?

Please mark this response as "Accept as Solution" if it answers your question.
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Valued Contributor
samu3
Posts: 57
Registered: ‎06-13-2008
Message 5 of 5 (385 Views)

Re: Importing Acad 3D polylines to ipt 3D sketch

12-17-2012 03:38 PM in reply to: samu3

The original 3D polyline geometry was not created by me, but I am trying to use it for sweeping without having to recreate it. It was not created with an Autodesk product.

 

I will be using one of those 3D polys as a centerline, the other ones are irrelevant. Every vertex on the polyline have diferent XYZ coordinates.

 

I will also need to somehow break the polyline into separate segments, because I have different profiles that I wil need to either loft or sweep to create a continuous element.

 

Thanks JD,

Samu

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