Hi Diana,
Here are two ways to create a customer symbols with weld symbols:
1.In Inventor:
1) Create a welding symbols
2) Create a some additional things using the sketch symbols attached the welding symbols
This contains one-sketch symbols and a welding symbol See attachment.
2. In AutoCAD
1) Create a welding symbols
2) Save copy as *.dwg
3) Edit the welding symbols form the Inventor (Take prompt texts for example)
4) Then invoke the block in Inventor
See attachment.
NOTE: As I know Inventor cannot using the welding symbols as sketch directly.
Thanks,
Coco (Autodesk Inventor QA)
Message was edited by: Coco zhou