Jeffrey Metcalf

Why is Component Offset NOT 0.0

Discussion created by Jeffrey Metcalf on Jan 22, 2009
Latest reply on Mar 30, 2010 by Jeff Wilke

I'm new to SolidWorks and Circuits. I'm exporting a SolidWorks model to CircuitWorks and saving as IDF. I viewed the .emn file and noticed some of the THRU-HOLE components have a non-zero offset (components placed on TOP and BOTTOM).

Why is there an offset when the component is mated flush to the PCB?

I experienced a similar problem using ProE, and the issue was related to the REF_DES coordinate system was placed outside the MCAD model volume, i.e. a BGA component with the coordinate system offset from the substrate to account for the height of the solder balls. Thus the MCAD geometry was not is contact with the PCB.

Any help would be greatly appreciated :-)