D. Gregory is a thermal management engineer. He focuses on designing and assisting in the manufacture of heat sink and thermal management solutions and assemblies, primarily for the electronics industry. He designs almost exclusively in Solidworks 2011, though he often re-uses and recycles legacy 2-D and other Autocad files to convert them to 3-D parts and assemblies. He routinely uses spreadsheet (Excel) and CFD (computational fluid dynamics) tools to optimize and model current and in-design thermal solutions.