In my experience, exploding blocks will generally make the files larger, not smaller.
I think i explained a little bit wrong. Goal is to clean the drawing.
When i'm done i put the result together in one block.
Because some (but perhaps not all) of the various constraints would still be present, causing the objects to be contorted as they are manipulated by AutoCAD to meet the remaining constraints.
Thought something like this. Because the behaviour changes by moving or turning the block before exploding.
In a certain angle the locked point (0 0) works and the lines beginpoint jumps to (0 0)^^
As there is no Acad on my home desktop at the moment. I have to wait untill monday to test.
Have a nice weekend!