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Problem with SufPatch tool

Anonymous

Problem with SufPatch tool

Anonymous
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My instructor and I have run in to an issues with a program file for an exercise from "Tutorial Guide to AutoCAD 2016" by Shawna Lockhart (SDC Publications). For reference, the problem starts on page 472 (pictures are included).

 

The exercise instructs to use a file provided by the publisher that contains a number of irregular rings/lines at different elevations and explains how to loft them together to begin to make a Surface Model. 

 

After lofting, the figure is supposed to be hollow with an open top.

 

The instructions proceed to direct you on how to use the SufPatch command to close the top of the figure with a smooth, mostly rounded top.

 

When my instructor, my fellow students, and I each attempted this, however, we ended up making a flat top instead of the rounded bulge pictured and described in the book. We were each careful to follow the instructions exactly, and have tested the patch tool on simpler lofted figured, in the same file and in a new file. The simplified objects would not patch correctly if it was in the same provided file, but would patch fine in a new file. The problem would persist if you copied the lines of the original file and pasted them in to a new file.

 

I tweeted the @autodeskhelp twitter, and was asked to post the project file here.

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john.vellek
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Solución aceptada

HI @Anonymous,

 

I don't know if you are still working on this issue but I found that when I created the loft, if I went into settings and selected Ruled instead of smooth fit then the patch will display the bulge properly.

Capture.PNG

Capture1.PNG

 

[EDIT] upon working with this more, it appears that some sort of PROXY Objects are preventing this from working correctly. An -EXPORTTOAUTOCAD to remove such data allows the resulting file to work as per the instructions in your book.

 

 

Please select the Accept as Solution button if my post solves your issue or answers your question.

 


John Vellek


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