Minimize jaw mounting time on turning centers with 3-jaw chucks!
Laser jaw setter manufactured
by CNC Consulting and Training (Patent applied for)
Most three-jaw chucks used on turning centers have a series of fine
serrations on master jaws and top tooling that must be properly aligned when
top tooling is mounted to the chuck. But by the nature of three-jaw chucks
(jaws are 120 degrees apart), it can be difficult - if not impossible - to
determine the exact diameter at which each jaw is being placed in the chuck.
In addition, the fine serrations of the master jaw and top tooling make it
very difficult to align all three jaws in the same series of serrations. Most
setup people count the number of serrations on the master jaw in order to get
each jaw into the correct serration. But time-consuming mistakes are often
If jaws are not properly aligned, of course, they will not run true when the
spindle is started. Fortunately, this will be very obvious to the setup person.
But the jaws must be removed and the entire task of jaw placement must be
repeated. It is not uncommon for entry-level setup people to make several
attempts before jaws are properly aligned and at the correct diameter in the
Benefits of the Laser Jaw Setter:
Fast and consistent!
Reduce time required to mount jaws - and in turn - reduce setup time.
Easy to use!
Reduces skill level required to mount jaws.
Simplifies three troublesome tasks!
Accurate jaw placement in appropriate serrations, precise diameter of jaw
placement, and determination of chucking plug or ring diameter.
Works on any turret-type turning center with a standard magnetic base (not
While it's difficult to predict the amount of time savings you'll experience
(skill level of setup people vary dramatically), you should agree that it will
be substantial. To be more precise, watch your own setup people. How long is it
taking them to get jaws mounted and properly aligned? Using the Laser Jaw
Setter, it will take an average setup person less than three minutes! (We're
assuming that jaws have been removed from the previous setup and keys have been
mounted in the jaws prior to starting this procedure.) Additionally, since
we're simplifying the task of jaw placement, a person with lesser skill will be
able to proficiently accomplish the task on the first try - time and time