isn't any application nice to work like( MAX) smooth and comfortable to work? it is great for examining or design some think( raw idea) it has great (align tools -snap tools- navigation-work freely ) but the (cad software) is not comfortable to work everything is locked poky and unpleasant. if some tools that now they are into (Autodesk inventor) like. 1- place constraint. 2-joint constraint 3-Dynamic Simulation 4-gear builder (best is -gear Trax)5- precise chain -belt- hub builder. brought into( MAX) it would be an amazing application for a mechanical purpose this is a very nice ability max has it we can install the wanted plugin if some guy does not need it isn't any problem we have a lighter application to work.it so easy for Autodesk the knowledge is ready just needs (copy and past .for Autodesk company) and some Changes.