Several spherical-shaped mold inserts with varying radii around 1 in. in 0.010-in. increments presented us with a machining challenge. A lathe wouldn't work, so we did the job on a CNC milling machine ...

John and Miles O’Brien are two of a few South Bend business founders whose product is still being manufactured in the United States. John and Miles, born in Ireland in 1868, were identical twins whose ...

Look up ‘concrete lathe’ and you’ll quickly find yourself reading the works of [David Gingery]. His series of books on building a machine shop from scrap begin with a charcoal foundry, and quickly ...

Don't have a lathe you can work metal on? The next best thing is just watching it happen. Here's one cutting a spiral pattern into a workpiece, much like the texture on metal stairs used to increase ...