Schedule Ducts based on their gauge values.

Hi,
This is a tip to bring Metal gauge values in duct schedules. My poject team asked me to find a way to bring Duct's metal gauge values in schedules. The team wants to fix the Gauge values based on the MAXIMUM SIZE OF THE DUCT. So I have to find the Maximum size of the duct.
 
To find the Maximum Size of the Duct, I created a simple calculated value using if statements .
 
The steps are given below.
1.Create a duct schedule and add the fields, Width & height.
2. Create a Calculated value with the name Max.Size and the formula as

 if(Width > Height, Width, Height)

 

After finding the Max.Size of the duct we need to add another calculated valuewith the name "Gauge Value"  to insert the gauge values in the schedules and keep it as a text parameter.
 
Now we have to create a nested if conditional statement to bring the gauge values.
if(Max.size < 751 mm, "Gauge 24", if(and(Max.size < 1501 mm, Max.size > 750 mm), "gauge 22", if(and(Max.size < 2251 mm, Max.size > 1500 mm), "gauge 20", if(and(Max.size < 3001 mm, Max.size > 2250 mm), "Gauge 18", "NA"))))





 
Solution Found.!!.
 

Duct Elbow Fitting with Fixed Inner radius.

Hi,

I would like to share a tip ad hope this would be helpful for someone in the projects. One of my project required to maintain the inner radius of the duct elbow at 150mm regardless of the size. A small trick in the formula helped me to acheived it.

When I edited the family to modify to meet the project requirement, I found that the radius of the Elbow fitting is derived by the "Center Radius" of the Fitting. The "Center Radius" of the Fitting is then derived by the Radius Multiplier



Image showing the default parameters of Duct Fitting

I removed the parameter "Radius Multiplier" and added a new parameter in the name "Inner Radius". Then Changed the formula for Center Radius  as "Inner Radius + Duct Width/2".

Modified Parameter to maintain the Inner Radius.

 This solved my problem and now I'm able to control the Inner Radius of the Elbow.