ACU-RITE MILLPWRG2 - Manual (Page 154)

136 8 Milling and Drilling
8.1 Milling and Dr
illing
Arc
An arc can be defined several ways:
 With a From point, To point and a radius
 With a From point, To point and a center point
 With a From, To and a 3rd point along the arc
 With a start point to an end point for a sweep angle
Choose a method based upon the information available from part
drawing. While programming, keep in mind that the arc's sweep angle
is measured from the X axis.
Entering Data:
 From the PGM screen, press the ARC key to access the
ARC Dialogue.
 Enter the beginning coordinates for the X axis (X1) and Y axis (Y1) in
the FROM field.
 Enter the ending coordinates for the X axis (X2) and Y axis (Y2) in the
TO field.
 Enter the begin and end depths for the Z axis.
 Enter the Z axis feed rate.
 Enter the arc's radius, then press either the Major Arc or Minor Arc
soft key. (A Major Arc has a sweep angle greater than 180 degrees;
a Minor Arc’s sweep angle is less than 180 degrees.)
 Select the cutting direction. Press the CW soft key for a clockwise
direction or the CCW soft key for a counter-clockwise direction.
 ARROW down and highlight the OFFSET field. Using the soft keys,
select the tool offset— Left, Center, Right, Inside or Outside.
 Enter the table’s FEED IPM.