I'm mechanical engineer. I do 3D-modeling and 2D-drafting. I have 5 years experience in 3D modeling and 2D draft.To do the calculations for the load. I can do Finite-element analyse. I always use AutoCAD,SolidWorks, Compass 3D, ADEM. In conclusion, if there is something to draw , without any problems I will make your order efficiently quickly and inexpensively.