Plans and Specifications
AutoCAD Electrical – Autodesk 2D and 3D Design and Engineering Software: Get a free 36-month license of Autodesk products for students.
My Cad Site: 56 FREE AUTOCAD TUTORIALS – A COMPLETE COURSE
Visio – DreamSpark: is a Microsoft Program that supports technical education by providing access to Microsoft software for learning, teaching and research purposes.
ISOCAD – Isometric Cad program