Lathe

Concrete lathe
stupid idea will be moved to the bottom later http://opensourcemachinetools.org/concrete-lathe/ links to http://concretelathe.wikispaces.com/Current+Design+Drawings and http://makezine.com/projects/the-multimachine-150-12-swing-metal-lathemilldrill/

Diy lathe

 * https://www.youtube.com/watch?v=LuriVr7cvYI&t=43s Home made lathe 9 parts by channel Id rather b welding
 * https://www.youtube.com/watch?v=VwNrxpqnKO8 part 6 by Makercise Gingery lathe, http://www.makercise.com/
 * https://www.youtube.com/watch?v=NHYa3WfgcPY Home made lathe part 6 by uploader Home made lathe machine. Cast iron bearings over motorcycle spoke.
 * https://www.youtube.com/watch?v=0C_FxwKoagg DIY pipe bender, see Machine design
 * https://www.youtube.com/watch?v=Y1IDHIcyHLY slant bed lathe, 4 axis.
 * https://www.youtube.com/watch?v=llLWytrtJKc concrete lathe

Linear guides
https://www.youtube.com/watch?v=Px07lIp01GY Mill track for linear guide out of large square steel pipe. haven't noticed any deformation. The tube is now stuffed with epoxy granite and making an excellent lathe bed. I'd say you go for it. It's cheap as chips and works like a charm if you attach some hiwin style linear guides to it. ( Epoxy granite, also known as synthetic granite,[1] is a mixture of epoxy and granite commonly used as an alternative material for machine tool bases. Epoxy granite is used instead of cast iron and steel for better vibration damping, longer tool life, and lower assembly cost.) http://www.cnccookbook.com/CCMillEpoxyFill.htm(forked from http://www.cnczone.com/forums/epoxy-granite/30155-epoxy-granite-machine-bases-polymer-concrete-frame-47.html#post274123). See slant bed lathe cnczone.com When you consider that even a heavy "bench" mill like the IH still weighs just under 1,000 pounds, while a really small commercial CNC mill such as the Haas TM-1 weighs in at about 3,000 pounds, you can see we hobbyists are challenged to do whatever we can to increase machine rigidity! , Part one, bed risers lathe epoxy granite youtube, https://www.youtube.com/watch?v=-0Cn0WRXPKs.

Haas lathe with square linear guides http://s24.photobucket.com/user/mahockett/media/haas11.jpg.html from http://bbs.homeshopmachinist.net/archive/index.php/t-21705.html. Guides are raised 10cm above base, creating a depression for chip deposits. See http://www.lathes.co.uk/scinta/index.html scinta model on lathes.co.uk.

Mill
https://www.youtube.com/watch?v=5CzpytZd4_A Mill the groves out of support platform out of solid slab aluminum, DIY build. Large millford type mill build.

Chile lathe diy

 * https://www.youtube.com/watch?v=yV9ff_DAOdM From Chile large bearing 7 part series.
 * https://www.youtube.com/watch?v=yV9ff_DAOdM prt.5 tension the AC motor with z axis(two steel tubes over each other).

Gear thread cutting

 * http://www.youtube.com/watch?v=KHZFj8qAycE from http://www.mainsteam.co.uk/steam_launch.htm
 * http://www.youtube.com/watch?v=xRmQpSGUAY8 Stationary mill rotating involute gear cutter. The lathe moves the blank through the cutter, cutting a v-shape. Two stepper motors needed, one rotates the blank, other moves platform forward.
 * http://www.youtube.com/watch?v=-2-uOi1uFJU This method preferred mill and lathe combo.
 * http://www.youtube.com/watch?v=ie7dNOLgno0 Spinning tap in chuck cuts worm wheel . Use one geared DC motor mounted on platform, stepper provides x-axis. The blank is fits over vertical shaft, spinning freely.

4th axis
https://www.youtube.com/watch?v=jkgmjIlOVKc making a gearbox worm for a fourth axis, oil seals.

Stepperhead
http://www.lathes.co.uk/stepperhead/ Designed and built by Alan Jackson, the Stepperhead is an attempt to combine, in one unit, the range of facilities found in a medium sized lathe and a small vertical/horizontal milling machine. In the 1950s David Urwick had designed and built the ingenious and versatile Metalmaster http://www.lathes.co.uk/metalmaster/, a device that combined a lathe and milling machine without unduly compromising the attributes of either.
 * http://www.lirtex.com/robotics/diy-cnc-machine/
 * http://twilightrobotics.com/cnc/cncnot1 how not to make a cnc

lathe 1
http://www.youtube.com/watch?v=7MUxivrx_MU Harbor freight mini lathe

http://morgandemers.com/ making a lathe face plate with aluminium casting

http://www.youtube.com/watch?v=spwfHuNSJXA http://www.youtube.com/watch?v=oJHDSY7tZ8c quick change toolpost

lathe
http://www.youtube.com/watch?v=pTArvTJt5eI build hand tool lathe Building a Hand Drill Lathe (How To)

http://www.youtube.com/watch?v=7wejoxolvjw Homemade Wood lathe Duplicator using an angle grinder King Arthur wheel on grinder for lathe work DIY lathe for woodwork

http://www.youtube.com/watch?v=dz8dxXfm2hs Lathe from old DRILLPRESS

www.youtube.com/watch?v=40vQHTt9s-A micro or mini lathe http://www.youtube.com/watch?v=lwmpFI1kDww Homde made lathe BEVEL block bearings, shows pictures.

http://www.youtube.com/watch?v=DXAzJE9Zs8s Huge lathe built from scratch with pictures.

check out sherline 4000 mini micor lathe

Lathe face cutters

milling http://www.cnczone.com/forums/linear_rotary_motion/189054-machining_large_worm_gear.html

http://www.youtube.com/watch?feature=player_detailpage&v=J0o3W4_LRBw&t=494 , http://www.youtube.com/watch?v=xRmQpSGUAY8 gear making

http://www.youtube.com/watch?v=oSeMX9SZXXY helical gear is cut on lathe. this is preferred can be reproduced.

http://www.youtube.com/watch?v=HAtziCsUj5Q Helical with CNC machine.

hobbynut channel
http://www.youtube.com/watch?v=8UBxNPbg0ls  CNC or mill(manually) cutting worm gear. adapt with DIY drill lathe. Hand drill rotates at high speed with a cutting tool, lathe part is done at angle to cut worm pattern out of plastic. The angle of the drill bit determines how thick or thin the worm gear edges are.

tutorial
http://www.mini-lathe.org.uk/12-hobbing-the-worm-wheel.shtml telescope worm wheel

Lathe brands
Unimat Lathe http://www.junkmail.co.za/leisure/model-toys/gauteng/johannesburg/west-rand/unimat-lathe-30047005

Minnie hobby ??? no such brand http://www.junkmail.co.za/leisure/model-toys/gauteng/johannesburg/minnie-hobby-lathe-29793421

Myford lathe

http://qtul.com/cnc-rotary-tables/accessories/80mm-3in-chuck-with-backplate.html $120