The drawings used in this web site were drawn using GENERAL CADD, which is a simple 2D drawing program. The drawings were then saved as PDF documents so they can be uploaded and printed. Click on the button to display the PDF drawing. If you want additional commands, save the drawing to your computer and then reopen using ADOBE ACROBAT. All the drawings are drawn for 24" x 36'' paper except for the connector drawings which were drawn for 11" x 17" paper. The 24" x 36" drawings are readable when printed on 11" x 17" paper.