Totale Surface Area of Ducts

[marco.defina]

Hello,

i would ask if there is a way to become the totale area of surface of an air duct in the voices of computation, for the invoice.

Example:

Duct length 1000mm 400x400mm
Perimeter multiplied by the length.
Total Area: (400 +400 +400 +400) * 1000 = 1.6 m2

For linear ducts i can make a formula, but for custom ducts and elbows?

Sorry my english.

Thanks.

[marco.defina]

No one can help me? It's very important for me.

Thank you.

[Keith.Brown]

You can certainly do it but you will need to study the duct fitting in the content builder and come up with the formulas.  This is not a feature that is offered with AutoCAD MEP. 

[marco.defina]

Thank for the response. In native revit ducts i can extract the total area, if i import the ducts in revit MEP will the Total area ducts read from Revit?

[Keith.Brown]

Revit MEP does not have an import function from AutoCAD MEP to Revit MEP.  So im am sorry but what you are asking is just not possible.

[cmoranv]

Hi.
Im in the same problem, im looking for a formule for duct surface, i see the post is closed, finally, you find some solution for this?
Best regards.

Carlos Morán.

[marco.defina]

the solution is that is not possible in autocad MEP. Only in Revit MEP

[Keith.Brown]

---

@Energytechbz wrote:

the solution is that is not possible in autocad MEP. Only in Revit MEP

---

Not totally 100 percent true.  It is possible in autocad mep.  However you will have to develop the formula for each fitting either on the fitting itself using content builder or inside a property set. 

Revit is able to do this for you automatically.  (I have not verified this myself however)

[marco.defina]

Yes with duct and elbow is simple, you can resolve with a formula or in excel after the export, but with personalized pieces it's little bit stronger to have the exactly surface.

[cmoranv]

Hi again

If somebody are looking for a solution, i do a formule to calcule the area for rectangular elbows and i report it on one table inside the drawing, maybe can help you

fx is the formule:

--------------------------------------------
fx AREA_CODO_RECT
(([codo_Ancho]+100)*1.57)*(2*([codo_Ancho]+[codo_Alto])/1000000)


fx 1_Heigth
Left ("[DuctObject:RectangularConnectionHeight]",2)

fx 1_Width
Left ("[DuctObject:RectangularConnectionWidth]",2)

fx 2_Heigth
Left ("[DuctObject:RectangularConnectionHeight]",3)

fx 2_Width
Left ("[DuctObject:RectangularConnectionWidth]",2)

fx 3_Heigth
Left ("[DuctObject:RectangularConnectionHeight]",3)

fx 3_Width
Left ("[DuctObject:RectangularConnectionWidth]",3)

fx codo_Alto
If [LongVarH] = 11 Then
RESULT = [1_Heigth]
ElseIf "[LongVarH]" = 13 Then
RESULT = [2_Heigth]
ElseIf "[LongVarH]" = 15 Then
RESULT = [3_Heigth]
Else
RESULT= "0"
End if

fx codo_Ancho

If [LongVarW]= 11 Then
RESULT = [1_Width]
ElseIf [LongVarW] = 13 Then
RESULT = [2_Width]
ElseIf [LongVarW] = 15 Then
RESULT = [3_Width]
Else
RESULT = "0"
End If

fx LongVarH
Len("[DuctObject:RectangularConnectionHeight]")

fx LongVarW
Len( "[DuctObject:RectangularConnectionWidth]")

-----------------------------


Best regards.

[tompilzys · Accepted solution]

Why dont you try BOMTABLES command?

[marco.defina]

It works

Thank you

[cmoranv]

Because.....  this command was unknow for me

i was looking for a solution and nobody help me.

Excelent and easy, thanks you very much.