Auto Z Stop with Lower X Axis for Prusa Mendel i2

This is work in progress
Up Date: 2018
The Floating z Axis is preforming very well, the micro switch option works with marlin's
auto level feature, using the hot end as the probe.
I have not done any more on the tool holder.

Update 2018:
Here is a link to my 3d Printed Printer: that has the floating "Z" the project has worked beyond my expectations. https://www.instructables.com/id/Long-Bed-Printed-3d-Printer/




Up Date: 2014
I added a Micro Switch to the lower "X" Axis. nu