By far, using AutoCad and Adobe Illustrator as a drawing tool set to control line quality is the most effective method in my digital drawings. For the basic 3D objects, I normally use AutoCad 3D or Rhinoceros 3D. Then, I finalize the line quality of my drawings in Adobe Illustrator. Implementing line weight theoryh into my digital drawings. The drawing above is one of my furniture design that utilized the method as mentioned to complete the digital workflow process. Not only using this technique with an object design, I use it with architectural drawing as well.