To modify an existing weld symbol, follow these steps:
- Open the "WeldTemplate.dwg" located in C:\ProgramData\Autodesk\Advance Steel 2016\Shared\Support\Symbols.
Important: The "WeldTemplate.dwg" can only be modified in plain AutoCAD®. Make sure that Advance Steel is not loaded.
- Open the Layer Manager.

Note: Starting with Advance Steel 2016, each weld symbol is drawn on a separate layer (e.g. fillet weld symbols are drawn on WM_FilletWeld and WD_FilletWeld layers).
"WM_","WD_", "SM_","SD_","PM_","PD_" are acronyms for Weld Main, Shape Main, Preparation Main etc, and are not mandatory but are recommended for organizational purposes.
- Identify the weld symbol layer and turn it on. Turn off the other layers to avoid overlapping symbols.

- Make the desired modifications.
- Save and exit.