According to SPR 552100, the Convert task add-in doesn't handle the case of exporting a sheet metal's flat pattern to DXF. Here is the explanation:
"The problem is that the SW macro in the convert task relies on the SaveAs method - which cannot handle saving sheetmetal parts to DWG/DXF (see SPR 509284). Task will fail with log error: 'The file 'C:\2010 SP4 Win7\SheetMetal\Part1.SLDPRT' and configuration 'Default' can't be converted to the file extension '.dxf'.' A potential workaround is to use the ExportFlatPatternView method in the macro - but the task will still fail becasue it is not able to 'see' the generated file in the vault and add it."
I wanted to know if any of you came across a work around, or maybe a customized add-in that can do that.