Angle Convention; Incl Function - Easson ES-12 Operation Manuals

Function : In daily machining, it is quite common to
machine an inclined surface, or datum
the work piece at an inclined angle to
X or Y axis.
If the work piece is small or the accuracy
requirement is low, operator can simply
put the work directly onto an inclinded table
or rotary table to machine the inclined work
surface.
However, when the work piece is too big to
be installed onto an inclined table or the
accuracy requirement is high. The only solution
is to calculate the machining positions using
mathermatical method. It is very time consuming
ES-12 provides an very easy to use INCL function
to help the operator to posit the tool along an
inclined angle.
application example of the INCL function :
A ) XY plane - to accurately datum the
work piece at an inclined angle
For lathe application, since the lathe have very different
machine structure compared to milling machines, please
refer to the chapter of "Supplement to Lathe application"
Example :
to accurately datum the work piece at
20 degress inclined from X axis
in this example, since the incline is counter
clockwise, therefore, the angle is -20 degree
INCL - Inclined angle tool positioning
20 degree
- 29 -
B) XZ/YZ plane - to machine an inclined surface
( only when 3 axis DRO is used )

Angle convention

X (+)
Angular direction
positive ( clockwise )
negative ( counter clockwise )
Y (+)