This is an example - the difference is on a few levels. First, i'm using pencils (i normally draw with a pen, never a pencil). This immediately changes the process, where (in the past) i've relied on a confidence in my drawing to allow for ideas to emerge throughout the drawing process, here i consider and re-consider one line and it's attendant meaning. The object (and meaning) emerges in more considered fashion, the idea is contained - almost using the medium to edit during the process.
Second, I am drawing a contained 'idea', where as before i represented lanscapes of thought - this has its pro's and con's - there is less scope for strange unexpected juxtapositions, but a single idea becomes more 'readable'.
I'm still approaching the act in the same way - i never think before i draw (in this example, i didn't say "Right, i've got an idea for a cyclical drawing machine - time to represent it) i always think during the drawing. In this example i started with a mobile phone attached to a printer, it kind of grew from there. Obviously it still has lots of problems.
Moving forward, i think i'm going to continue to experiment see where my drawing and thinking takes me.