Thank you for downloading 80/20's CAD files for use with your design software. As the manufacturer of the "Industrial Erector Set", 80/20's greatest strength is our modularity and the ability to deliver what our customers want, when they want it. If you have any questions regarding the download you just received please contact us at info@8020.net or call 1-877-248-8030 and ask for Customer Service. We look for ward to serving you in the future. The 80/20 Software Design Team.