See what your base units are in ACAD. I work in Corel and export making sure I have inches chosen as my working unit. Then export as DXF. When I open it in RDWorks, I specify Inches as the unit. That way I am sure it will be scaled properly.
You may need to do the same when moving into Corel with a DXF.
[SIZE=1]Generic Chinese 50w 300x500
Lulzbot TAZ 5 3D Printer
Corel X7, Photoshop CS6, Lightroom 4
Modo, Bryce, Poser
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