AutoCAD MEP General Discussion

AutoCAD MEP General Discussion

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jpuck91
Posts: 30
Registered: ‎01-04-2011
Message 1 of 7 (921 Views)
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MEP 2013 - duct connections breaking

921 Views, 6 Replies
09-18-2012 07:00 PM

Has anybody else experienced random duct connections breaking in MEP 2013? I've been working on duct layout for a theater for a couple days... up til today the ducts & fittings connected just fine. I went and customized the rise/drop symbols, and after regenerating the drawing every one of the duct connections (fitting to duct or, duct to duct, or fitting to fitting) had the little warning graphic and a "duct connector is not connected" error message.

 

the customization on the rise/drop symbols was merely changing the colors & linetypes in the existing rise/drop blocks. Don't see how that would mess up or corrupt the drawing file & connections.

Wanted to follow up and see if copying the objects to a new file helped?  Would redrawing the objects from scratch be possible?

 

Hope this helps,

Joshua

 

 


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Joshua.Benoist
Posts: 518
Registered: ‎08-23-2006
Message 2 of 7 (892 Views)

Re: MEP 2013 - duct connections breaking

09-20-2012 06:24 AM in reply to: jpuck91

Have you tried the OBJRELUPDATE command?  Tap enter key twice to select all and update the model.

It may just need to compute thru the model (each connection and relationship) to update the screen.

Joshua

 

 


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Joshua Benoist, PE
Senior Support Specialist
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Autodesk, Inc.

Active Contributor
jpuck91
Posts: 30
Registered: ‎01-04-2011
Message 3 of 7 (886 Views)

Re: MEP 2013 - duct connections breaking

09-20-2012 09:18 AM in reply to: jpuck91
Yeah that was the first thing I tried to fix it. Didn't change anything.

I also tried reestablishing some of the connections - breaking ducts or deleting fittings then using the 'add duct' command to recreate them... even that didn't work consistently. Some connections would be re-established others would not. Sometimes one side of an elbow would reconnect but not the other, etc. And that was in locations where all the connections had been good previously so I know it wasn't something like ducts not lining up or anything.
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Joshua.Benoist
Posts: 518
Registered: ‎08-23-2006
Message 4 of 7 (881 Views)

Re: MEP 2013 - duct connections breaking

09-20-2012 01:15 PM in reply to: jpuck91

Please try this:  Copy all (CTRL +A) to the clipboard (CTRL +C), then start a new drawing from the MEP default template.  In the new drawing, paste from clipboard (CTRL +V).  I do not see how editing the rise-drop blocks would break the connections. 

 

Haven't seen that happen before here in support.  I have seen an elbow fitting rotated with the Core AutoCAD ROTATE command, it was rotated about it's long axis.  The twist between connectors stops the transfer of data beteen segment and fitting.  It loses it's connection and shows the triangle.  Even a 0.001 degree twist would break the connections.  For every segment and fitting to break this way, their rotation vector (Normal) would have to be slightly off or lost somehow.  That leads me to suspect the file is corrupted.  Which the copy across to a new drawing "may" resolve it.

 

Did you rotate the rise-drop block in the block editor?

 

Joshua

 

 


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Joshua Benoist, PE
Senior Support Specialist
Product Support
Autodesk, Inc.

Active Contributor
jpuck91
Posts: 30
Registered: ‎01-04-2011
Message 5 of 7 (879 Views)

Re: MEP 2013 - duct connections breaking

09-20-2012 01:18 PM in reply to: jpuck91

No all I changed was a couple linetypes and line colors. I wouldn't think any changes, even rotation, to the rise/drop symbols would have much effect since the r/d symbols get scaled to each individual connection anyway?

 

I'll try copying the objects from the file over to a new dwg and see if that works.

Product Support
Joshua.Benoist
Posts: 518
Registered: ‎08-23-2006
Message 6 of 7 (861 Views)

Re: MEP 2013 - duct connections breaking

09-21-2012 02:12 PM in reply to: jpuck91

Wanted to follow up and see if copying the objects to a new file helped?  Would redrawing the objects from scratch be possible?

 

Hope this helps,

Joshua

 

 


______________________________________________________________

If my post answers your question, please click the "Accept as Solution" button. This helps everyone find answers more quickly!



Joshua Benoist, PE
Senior Support Specialist
Product Support
Autodesk, Inc.

Active Contributor
jpuck91
Posts: 30
Registered: ‎01-04-2011
Message 7 of 7 (859 Views)

Re: MEP 2013 - duct connections breaking

09-21-2012 02:26 PM in reply to: Joshua.Benoist

Possible? Yes... But having to do that every time the software screws up the drawing kind of negates any advantage of going to 2013.

 

Copying the drawing contents over to a new file seems to work occasionally. I tried it 4 different times into new drawings - it worked in 2 of them, didn't work in the other 2. Doesn't seem to be much of a pattern.

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