Mike's Hot End

After considerable time and many failures to make an 'all metal' hot end I caved and changed the design to include a teflon liner. The majority of the design is borrowed from others hot end designs with a few of my tweaks. This is designed for use with a bowden setup and a water cooled block but could work on an air cooled non-bowden setup.

Requires a metal lathe but can be a cheap 'mini-lathe' (I used a harbor freight one).

Goals are to be reliable, easy to make, easy to service, and not require any really special tools (other than a lathe)

Some inspiration from:
http://forums.reprap.org/read.php?1,145069,page=1
http://richrap.blogspot.com/2011/08/high-power-hot-end-for-fast-printing.html