SolidWorks allows equations to trigger macros by linking to embedded or external macro files. There are several steps to set this up: create the macro file, embed it in the design binder or link to its external location, create a text file with variable names that match the macro, import this text file to add the equation, and use "SwApp.RunMacro" to reference external macro files from equations on rebuild. This allows macros to automatically execute on each rebuild through equations in part or assembly templates.

1. Equation driven
Macros
Subtle Ability of SolidWorks

2. Description
SolidWorks is able to run Macro triggered from
Equations. There are two methods of working with
equation based Macros
By Linking to a Embedded Macro file
By Linking to a External Macro File

3. Step One
Create the Macro file

4. Step 2 : Embedding
Right Click “Design Binder ”
Click -> Add Attachment
Browse for the SolidWorks Macro
file
The Macro file gets attached to the
Design Binder

5. Step 3: Create a Text file
Create a text file
The variable names are arbitrary ,make sure there the variable exist only
once
The arguments for ISldWorks::RunAttachedMacro and
ISldWorks::RunMacro2 need to match your macro name/path, module,
and entry point.

6. Step 4:Add Equation
In Feature Manager Tree
Right Click Equations Folder
Select Manage Equations..
In Equations Manager ,Select Import option
Browse for the Text File & select Import
The Equation Manager makes it difficult to add
these equations due to the equation checker
disliking the syntax of equations containing
VBA code
Thus Importing the code can be imported by
means of importing a Text File

7. Step 5:Referencing
“SwApp.RunMacro” can be used to run the Macro file from a external
location.
Enter location of the Macro file ,module and the procedure to be executed

8. Conclusion
The Macro file gets executed every time the Document gets
Rebuild
This files can be saved as Part Template (.prtdot) or
Assembly Template (.asmdot) and can be reused now and
then for regular process
This never works for drawing file as there is no provision to
add equations

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