AutoCAD MEP General Discussion

AutoCAD MEP General Discussion

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New Member
cgolden
Posts: 2
Registered: ‎06-11-2003
Message 1 of 5 (144 Views)

HVAC Duct Fitting problem

144 Views, 4 Replies
06-09-2003 06:14 AM
When drawing HVAC ductwork I want to use mitered elbows for all 90 deg turns and radiused elbows for non-90 turns. First there is no way that I can tell to do this. Second I typically draw with the mitered elbows and then use duct fitting modify to change the non-90's back to radiused. This worked fine in BS-3. In BS-2004 it will change one elbow to radiused but when I go to change the next one it will convert the first one back to a mitered elbow. This is a bog problem for me. Any solutions to either problem?
*[Autodesk], Bo Noren
Message 2 of 5 (144 Views)

Re: HVAC Duct Fitting problem

06-09-2003 09:51 PM in reply to: cgolden
Hi,

 

It is not possible to define different part types
for different elbow angles in preferences as you want. The problem you have
found with modifying the elbows seems to be an error when modifying two fittings
in the same duct run. I have logged it as a defect (DID502815). I haven't found
any work around for that problem yet:-(

 

The only tip I can give you is to switch between
mitered and radius elbow when you are laying out duct work. Click on the arrow
next to the Preference button in the Add Dashboard to quickly switch
between different parts. This might not be an acceptable solution for you but it
is the only one I can think of right now.

 

 

/Bosse

 


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
When
drawing HVAC ductwork I want to use mitered elbows for all 90 deg turns and
radiused elbows for non-90 turns. First there is no way that I can tell to do
this. Second I typically draw with the mitered elbows and then use duct
fitting modify to change the non-90's back to radiused. This worked fine in
BS-3. In BS-2004 it will change one elbow to radiused but when I go to change
the next one it will convert the first one back to a mitered elbow. This is a
bog problem for me. Any solutions to either problem?
*[Autodesk], Kevin Mak
Message 3 of 5 (144 Views)

Re:

06-10-2003 03:11 AM in reply to: cgolden
cgolden,

 

The problem is that when modifying the subtype of a
fitting, it looks into the preferences and modify the connected fittings
according to preferences. There is a work-around for
this:

 

1. Set your preferences for elbow to "NONE" in
duct preference

2. When modify your non-90 degree mitered elbow to
any other subtype (smooth radius), you will get a prompt "No Default Part has
been specified for Use in this Situation."

3. Click "Ignore and Continue" to ignore the
subsequent modifications on the two sides connecting the elbow (So
you have to click "Ignore and Continue" twice)

 

Then your elbow should be modified to smooth
radius without changing any other elbows in the connected run.

 

Hope this helps,

 

Kevin Mak

[Autodesk, Inc.]

 


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">

Hi,

 

It is not possible to define different part types
for different elbow angles in preferences as you want. The problem you have
found with modifying the elbows seems to be an error when modifying two
fittings in the same duct run. I have logged it as a defect (DID502815). I
haven't found any work around for that problem yet:-(

 

The only tip I can give you is to switch between
mitered and radius elbow when you are laying out duct work. Click on the arrow
next to the Preference button in the Add Dashboard to quickly switch
between different parts. This might not be an acceptable solution for you but
it is the only one I can think of right now.

 

 

/Bosse

 


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
When
drawing HVAC ductwork I want to use mitered elbows for all 90 deg turns and
radiused elbows for non-90 turns. First there is no way that I can tell to
do this. Second I typically draw with the mitered elbows and then use duct
fitting modify to change the non-90's back to radiused. This worked fine in
BS-3. In BS-2004 it will change one elbow to radiused but when I go to
change the next one it will convert the first one back to a mitered elbow.
This is a bog problem for me. Any solutions to either
problem?
New Member
cgolden
Posts: 2
Registered: ‎06-11-2003
Message 4 of 5 (144 Views)

Re:

06-11-2003 11:54 AM in reply to: cgolden
Bo & Kevin,

Thank you both for the help. That is a pretty decent work around. I assume that an update to correct that will amek its way down the pipe sometime in the near future but for now I can get by. Also, just as a suggestion for a future "feature" the ability to specify different elbow fittings for 90 degree turns and non-90 would be very helpful. There are quite a few people out here that use mitered elbows for 90 degree turns but spec radiused elbows for non-90 degree turns.

Thanks again for the help.

Chris
*[Autodesk], Kevin Mak
Message 5 of 5 (144 Views)

Re:

06-11-2003 10:07 PM in reply to: cgolden
Chris,

 

Thank you for your suggestion. It's very
important for us to know how real-world users want our product to work. We will
discuss this in the future.

 

Kevin

[Autodesk]

 


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
Bo
& Kevin,

Thank you both for the help. That is a pretty decent work around. I assume
that an update to correct that will amek its way down the pipe sometime in the
near future but for now I can get by. Also, just as a suggestion for a future
"feature" the ability to specify different elbow fittings for 90 degree turns
and non-90 would be very helpful. There are quite a few people out here that
use mitered elbows for 90 degree turns but spec radiused elbows for non-90
degree turns.

Thanks again for the help.

Chris

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