If you create a new component just copy and paste it into the Components file and save it for the future along with the others.

That way the line weight will scale as you scale the object if you need that option. A trick with line widths is to make sure you have the “Scale with Object” option checked when you create a line object. As all components are vectors you can easily resize them, move them, color them, change the line widths, etc. Then open you components file and simply copy paste the components you need onto your new drawing area. Once you have these you can set up you can create a new file with the same spec’s. This will quickly become your template file. or whatever you might need in the future and save it as say, “Circuit Components”, etc. Once you have a document setup for what you need then I would use only vector drawing and create some electric component IC shapes, some resistors, diodes, pots, etc.

Having done a lot of technical drawings in the past I would start by maybe setting up a document with your desired resolution (say millimeters, etc) and turn on the “Grid” from the “View” menu and turn on snap to grid under the magnet icon. Is there any way to control the over-smoothing that's going on? Is there any way to just draw as a bitmap so when I use the eraser I'm not slicing vector lines into lots of little pieces? Likewise circuit diagrams I drew also got mangled. Also, if I used the tablet to sketch handwriting or circuits etc using the paint brush (with a very small size) then when I lifted the pen after writing something the software turned the whole thing into a vector and smoothed it to the point you couldn't read a thing. However, in my first 30 seconds of usage I decided the lag with using my graphics tablet was *completely* unacceptable.

I was hoping I could get all that out of AD. However, it completely blows at editing - you can't select something and change it's color, flip it in X or Y, open two documents at the same time and copy/paste between them etc. Sketchbook Pro does a fantastic job of replicating the pen/pencil and paper experience. I currently use Sketchbook Pro and my Cintiq graphics tablet as a replacement for my engineering notebook to do handwritten notes and sketch circuits, graphs and formulae. I'm not a graphics artist or designer, I'm an engineer.

Sketchbook pro drawing