Autocad Plant 3d Iso Symbol Skey -

In AutoCAD Plant 3D, the combination of ISO Symbol Type and SKEY (Symbol Key) is the engine that converts 3D piping models into accurate isometric drawings. Without a valid SKEY, the software cannot identify which symbol to place, often resulting in fragmented or split isometric outputs. Core Concepts

Example Entry (Custom / Override):

<SymbolDef>
  <Name>My Custom Diaphragm Valve</Name>
  <Skey>DIA_CUST</Skey>
  <BlockName>Diaphragm_Custom_Top</BlockName>
  <Annotation>SPECIALTY</Annotation>
  <Overrides>
    <Scale>1.5</Scale>  <!-- Scale symbol by 150% -->
  </Overrides>
</SymbolDef>

How to Find and Change an SKEY

You have three levels of control:

Tips and Best Practices

Now, every time you run isometrics, your custom symbol appears automatically. autocad plant 3d iso symbol skey

In this example, the skey file defines a valve symbol with a circular shape, a diameter of 20 units, and a red fill color. The symbol also has a label "VALVE" with a font size of 12. In AutoCAD Plant 3D , the combination of

If Step 4 fails (No Match): The component is drawn as a simple box or line, and a warning is logged in Isogen.log. How to Find and Change an SKEY You

Each symbol is drawn using specific rules: