Design: Compression, Extension, Torsion, Conical, Simple Beam, CantileverSpring-Pro 3.0 for engineers, designers, and the manufacturing industry. Used in automotive, appliance, electronics , medical and spring manufacturing.Design springs in one or two-load applications. Includes 21 pre-defined material types. Auto options allow for the best material type, wire size, active coils, etc...Advanced Auto Features helps you solve the conflicts, when designing springs with 2 loads, initial tension /solid height, stress, etc...Spring-Pro will monitor and verify your data while assisting you with warning prompts and flags to avoid improper design, stress and other conditions often overlooked. Generated Cad drawings for filing, archiving, printing or faxing or save to dxf format to modify, add your own logo or otherwise arrange to your own preference. Save and Retrieve design part files.The Comprehensive User' s Guide, provides step-by-step instructions.