07-07-2012, 10:43 AM
How'd you do for precision? Caliper across a few teeth in several places..
Lots of advantages doing these between centers. There's even a "re-do" possible, the drive dog is somewhat adjustable (opposing screws) and using it will enable you to remount the blank and recut teeth a little deeper if need be. Especially handy for recutting teeth damaged by another gear, or fixing broken teeth. I generally use a 1" x 6" round bar as an arbor, turned, centered and threaded to fit, preferring a shoulder for the blank to rest against and a large nut to hold 'er good.
Lots of advantages doing these between centers. There's even a "re-do" possible, the drive dog is somewhat adjustable (opposing screws) and using it will enable you to remount the blank and recut teeth a little deeper if need be. Especially handy for recutting teeth damaged by another gear, or fixing broken teeth. I generally use a 1" x 6" round bar as an arbor, turned, centered and threaded to fit, preferring a shoulder for the blank to rest against and a large nut to hold 'er good.