Retracting Key Ring Corrals Chuck Key
Using a retractable-chain key ring to keep your chuck key close at hand.
CNC & Machining
The latest DIY ideas, techniques and tools for the manufacture of metal, wood, plastic, ceramic and composites. We talk about machining, using a lathe to machine metals like steel, brass, and aluminium. We make chips fly!
“World’s Smallest” Working V-12 Motor
A Spanish craftsman named Patelo skillfully designed and fabricated this tiny working V-12 motor from stock stainless steel, aluminum, and bronze for his grandchildren Sara, Carmen, Jose and Pablo. It took more than 1200 hours of work. Not counting the 222 screws, he machined all 261 pieces himself. The engine operates via compressed-air injection, has 12cm3 total displacement, 11.3mm cylinder heads, and a 10mm stroke on each piston.
The Sieg Mini-Mill: One Manufacturer, Many Brands
A full-size turret mill is, of necessity, a heavy, expensive piece of equipment, impractical for most individual owners due to space and/or monetary constraints. For hobby work, however, a so-called “mini mill” can perform very well. The chief limitation of a mini-mill is not so much the quality of the work it can produce, but the size of the work it can handle.
Milling Machine Basics
Chicago’s American Machine Tools Corporation buys, sells, ships, and repairs heavy machine tools all over the world. They also maintain a curriculum of free, online, non-brand-specific operator education materials, including the best general How to Use a Milling Machine page I’ve seen. There are no videos, but personally I prefer old-fashioned text and diagrams for this purpose. If you are interested in movies, however, check out MIT’s Introduction to the Mill.
Now That’s a Lathe
At the extreme opposite end of the spectrum from “hobby” machine tools are those used to build ships and power plants. I have no technical details about the lathe shown above, but the photograph was taken in 1957 or 1958 at the Doxford Engine Works in Pallion, England. If you like it, don’t miss the gallery over at Ships Nostalgia about English shipwrights William Doxford and Sons. It’s chockablock with absolutely gorgeous, amazing photographs of giant men building giant machines with giant tools.
Grinding Lathe Tools on a Belt Sander – Why and How
A three-part series from Mikey over at MachinistBlog.com. Mikey has been a machinist for 15 years, and has come ’round to the belief that high-speed steel (HSS) cutters, rather than the pricier, lower-maintenance, carbide-tipped bits, are the way to go on a hobby-sized metalworking lathe. He also makes a compelling argument for using a belt sander, instead of the traditional bench grinder, for making, shaping, and sharpening HSS lathe tools.
The South Bend Lathe Library
Founded in 1906 in South Bend, Indiana, South Bend Lathe, at one time, controlled almost half of the U.S. domestic metalworking lathe market. South Bend did a lot of things right, to earn their market share and reputation, and one of the smartest was to produce clear, well-illustrated, low-cost instructional materials describing not just how to set up and run their tools, but how to use them to perform all kinds of basic and advanced machining operations.
