Acu-Rite Control System MILLPWRG2 User Manual

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9.1 Geometry Calculator
Geometry calculator layout
The geometry calculator’s layout is similar to the part program in PGM 
mode. To differentiate it from the part program, the geometry step 
listing is on the right third of the screen and the graphic window is on 
the left two-thirds of the screen.
Geometry listing
The geometry calculator listing contains all steps:
Limited to geometry steps: point, line, and arc.
No continuity indicator. Margin is used to display step number for...

2129 Geometry/RPM Calculator
9.2 Geometry User Interface
9.2  Geometry User Interface
Adding geometry features to listing
Geometry steps are limited to GeoPoints, GeoLines, and GeoArcs. A 
new step is added by pressing the POINT, LINE, or ARC key. As with a 
part program, the new step is added before the currently highlighted 
geo step
GeoPoint
Defined by single coordinate
GeoLine
Defined by combinations of From point, To point, and Angle.
GeoArc
Defined by combinations of From point, To point, Center...

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9.2 Geometry User Interface
The following table lists the features that are found based on the 
selected features:
ItemsFind PointFind lineFind Arc
1 Line End points of the given line Given a distance, lines parallel to 
the given line; lines perpendicular 
to the given line through its end 
points.
1 Arc Center point, end points. Given an angle, all lines tangent to 
and through the center point of the 
arc.
If angle is not specified, gives lines 
from the end points to the center...

2149 Geometry/RPM Calculator
9.2 Geometry User Interface
Some operations require entry of additional information (distance, 
angle, or radius). If needed, the user is prompted to enter a value by 
displaying a dialogue with fields that require additional data.
Managing geometry results
Since there are generally more solutions possible than desired, all 
possible solutions are presented (without a step number). To keep the 
result required, use the UP or DOWN ARROW keys to move the cursor to 
that feature...

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9.2 Geometry User Interface
Returning features to the part program
Press the Return Feature to transfer the current geo step to the part 
program. The soft key is disabled when it is not possible to transfer 
the current step to the program.
If no program step is open, Return Feature adds an equivalent 
program step at current location. The system returns to PGM view 
with the new step open.
If a program step is open, Return Feature (GeoPoint) returns the 
GeoPoint’s coordinate...

2169 Geometry/RPM Calculator
9.2 Geometry User Interface
Program example
In some  cases, a part drawing may not provide all of the dimensions 
needed to program the part. In the following illustration the 
coordinates of points B and C, where the arc is tangent to the sides, 
are unknown. 
The coordinates will have to be identified before lines A-B and A-C and 
the arc that extends from point B to point C can be programmed.
Locating points B and C
First program an extended line from A to B, then program...

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9.2 Geometry User Interface
Step 2
The second step will be to draw a line by entering the absolute 
coordinates for point C (2, 2) in the “From” field and point A (0, 0) in 
the “To” field.
Press the LINE key and enter the data in the GeoLine 
dialogue. Enter 2 in the From X1 field, and 2 in the 
From Y1 field.
Enter 0 in the To X2 field, and 0 in the Y2 field.
Press the USE key to enter the data into the program.
The Geometry Calculator screen should now have these two lines...

2189 Geometry/RPM Calculator
9.2 Geometry User Interface
Step 3
Finding the arc that’s tangent to the two lines.
Highlight 001 GeoLine and press the Select Feature 
soft key. The ARROW indicates that the feature has 
been selected.
Next, highlight 002 GeoLine and press the Select 
Feature soft key.
Press the Find Arc soft key. A pop up dialogue will 
display a field to define the arc radius.
Enter the radius of 1.
Press the USE key. 
GeoCalc will display all the arcs that have a radius of 1 that are...

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9.2 Geometry User Interface
Finding the points of tangency
The points of tangency between the lines and the arc need to be 
determined. Now that the arc is in place, the coordinates of its end 
points are needed. Use GeoCalc’s find point feature to find the end 
points of the arc.
Highlight 001 GeoLine and press the Select Feature 
soft key. This will de-select the line and cause the 
arrow to disappear.
Highlight 002 GeoLine and de-select it.
Highlight 003 GeoArc and press the...

2209 Geometry/RPM Calculator
9.2 Geometry User Interface
Returning the arc feature
Press the  CALC key. 
Press the Geometry soft key.
Highlight the GeoArc (step 003). Press the Return 
Feature soft key. The program screen will return and 
automatically add an arc step to your program and 
place the arcs information into the dialogue. 
Press the USE key to accept the arc into the part  
program.
Finishing the program
Press the LINE key to begin a new Mill Line dialogue. 
Enter coordinates for the To...