Thomas Burgin sent in these pictures of his Z axis extension.
"Here's a few pics of a quick extending of the Z axis. Moved up 4 more inches then the max. Had to do some work on the end of some parts. This is problably not good for long term use though. I think I will make a better easier way of doing this for when I need the extra travel."
Added to the pictures page.
I also added a link to new Taig User Matt Wellhouser's Blog.