AutoCAD Mechanical toolset displays the welding symbols saved in the symbol library. If you attached the symbol to a line, in the drawing area, specify the start point for the leader.īest answer for this question, how do you show welds in AutoCAD? To Create a Welding Symbol, Using the Symbol Library ( AutoCAD Mechanical Toolset) Click the Annotate tab Symbols panel Welding Symbol drop-down.Select an object to attach the weld symbol to.Click the Annotate tab Symbols panel Welding Symbol drop-down.