http://groups.yahoo.com/group/ShopTools/files/general%20shop%20tooling/
The Wiley E Coyote School of Machining is currently designing a homebuilt CNC vertical mill:
http://groups.yahoo.com/group/wecsom/
LewisMill.pdf
An 8-page article spanning 2 issues and covering the construction and setup of a Lewis Horizontal Mill from casting kit to finished machine. W.E. Burton, Pop. Science, Apr./May 1948.
MiniHMill1.PDF
6 page article in The Model Engineer Aug/Sep 1953. See below.
SN22BenchMill.pdf
A small bench-top horizontal milling machine from Popular Mechanics Shop Notes, 1922. See below.
Westbury_LVM
MetalMaster