Driving the Work - Lathe Tailstock Centers

Left: 60 live center. Right: live cup centerI have previously written about the drive centers used on a treadle lathe. Today it's the tailstock's turn. The tailstock support does two things: the first is obvious - it keeps your spindle work from falling out of the lathe. The second, which is important even if you're using a chuck to hold a material, is that it prevents the end of the work from bending away due to tool pressure. In thin stock, this is very obvious that you want to support the material so it doesn't bend away from the tool as it cut. With large work held in a chuck, support from a tailstock center will help prevent the work from spinning out of the chuck if there is a catch. The most primitive tailstock center is just a pointed bit of metal that the work can rotate around. Such a center is called a dead center, and is typically a steel rod coming to a 60 point. You can just put dead center in your tailstock and it will work. But in general, this isn't done anymore. The…