Civil Engineering Reference
In-Depth Information
barontopofaparallelbetweenthevicejaws.Thisdoesentaildrillingandtap-
ping a small hole in the body of the vice, but you might get away with drilling
and tapping the jaw if it is soft.
Another method, as mentioned earlier, is to use a second vice with a stop
in it. This does not need to be a narrow stop; you can use a stop up to the
capacity that the vice will open up to.
Say you want to machine 50 lengths of bar to the same length. Put a wide
stop into the second vice, using a bit of sheet metal. Machine the edge of the
metal so that it is square to the vice jaw. Now, every bit of bar touching the
stop will be at the same position endwise. It is now a simple operation to load
as many workpieces as you can and machine the ends square. All will end up
at the same length. You can use the same idea but hold the stock of a square
in the second vice.
The toolmaker's vice
The toolmaker's vice is usually ground all over and comes in several different
sizes. Often these are called pin vices (not to be confused with pin vices that
take round stock) because the moving jaw is clamped by tightening up an Al-
len key which clamps the moving jaw into half a pin hole under the vice. To
clamp these toolmaker's vices down, you will probably need to make some
clamps with rounded ends that fit into the pin holes, or thin clamps that will fit
the clamping slot cut into the ends of the vice.
