I am a draughtsman basically, with about 30 years of experience in CAD using AutoCAD, Autodesk Inventor, advance steel etc. in the fields of 1) mechanical (design support, concept development, detailing and drafting for developing in vacuum chambers, MSMs, SPMs, machine layouts, MHES, etc.) using Autodesk Inventor, 2) steel structures detailing and drafting, 3)Plant layouts, P&ID layout, schematics, working plans(isometric drawings), etc. 4) 3D modelling of multistoreyed complexes and complex civil structures. etc.