Playing Lego With Python - High Hopes!

I updated my build tracking matrix to better monitor the position of the bricks being added to the LDR file - it's not perfect but I've reduced the intersecting bricks down to about 4% - Here's a build with about 55 bricks - LDD told me there were 2 intersections (you can just see one of them at the base).  I underestimated the importance of the build tracking matrix when I started this project - I probably need to go back an rework it!