MW

Taper Cutting Checks and Setup From Machinist's Workshop This simple method for checking and setting up for cutting a taper on your lathe works equally well, whether using the compound or a taper attachment. In order to achieve the best accuracy, the workpiece must be smooth and in line with the lathe axis. If it [...]

by Jack Johns I was asked to re-machine the centers, in both ends, of four 4" diameter x 50" long hardened rolls. The ends were plugged and soft, so they could be machined. The tolerance was .0002" TIR on a dead center. I set up a roll in the usual way, using a four-jaw chuck [...]