Acu-Rite Control System MILLPWRG2 User Manual

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6.2 Folders
Other 
AddressesDescriptionComment
F † Set Feed RateThe feed rate uses the current program units in effect (ipm or mmpm).  
The setting applies to current and subsequent blocks.  The default is 
determined from MILLPWR
G2s configuration setup.
I †Arc center coordinate parallel 
to X axis
These are the arc center coordinates for G2 and G3 arcs. They are 
assumed to be programmed in incremental from the current tool 
position. J †Arc center coordinate parallel 
to Y axis
K †Arc center coordinate parallel 
to Z axis
N † Line NumberLine numbering is optional and for readability only.  MILLPWR
G2 does 
not make use of this information.
O † Program Number Used at the beginning of a program.
S † Spindle SpeedThe spindle speed is set to the specified speed (rpm). If the spindle is 
currently off (M5), it will not be turned on unless accompanied by a 
spindle direction block (M3 or M4). The setting applies to current and 
subsequent spindle direction blocks. The default is 0 rpm.
T † Tool SelectionThis command is used to select the active tool.  The tool is specified by 
tool number.  The diameter and length must be specified in the Tool 
table.
The program pauses at a tool command and prompts the user to 
complete the tool change.  Press GO to resume.
X † X Axis Coordinate
The coordinates represent the destination for the G0, G1, G2, or G3 
command currently in effect.  They use the current units (G20/21 or G70/
71) and offset mode (G90 or G91). Y † Y Axis Coordinate
Z † Z Axis Coordinate 
						

							1326 Programming
6.2 Folders
Additional G-code conventions for MILLPWRG2
The following lists some of the expectations and limitations of 
programs ran in MILLPWRG2.
Blocks may contain multiple commands and are executed with the 
following precedence:
Messages
Tool Change
Spindle Control
Coolant Control
Dwell
Motion
Stop
Operator comments should be enclosed in parentheses.
An operator comment with “MSG” appearing within the text is 
considered a message. The text following “MSG” (up to 60 
characters) is displayed to the operator at run-time. Program 
execution pauses until the operator acknowledges the message by 
pressing GO. Format is MSG (Operator message) or MSG (“Operator 
message”).
Parametric programming (use of variables or algebraic operations) is 
not supported.
Program delimiters (“%”) are ignored. Text following the delimiter 
is ignored.
White space is ignored between address but not within a numeric 
value or message.
If a coolant command (M7, M8 and M9) appears in the block, the 
Operator Intervention Message is displayed regardless of the 
current coolant setting. If AMI hardware is present, the block will 
execute without the need for any operator intervention or 
acknowledgement.
Tool length off set is read from MILLPWR
G2 ‘s tool library. 
For example: In a G-code file, T1 will use the tool length offset from 
Tool #1 in the tool library. T2 will use tool length offset from tool 
library tool #2, etc.
The skew feature does not work with G-code programs. Remove 
any skew angle prior to running a G-code program. 
						

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Backing up a program
To back up a program is similar to saving a program.  A backup 
program can be saved to another location (e.g. memory device, or on 
a network), or to the same program location.  If it is saved to the same 
program location, then it can be with the same name plus an indication 
in the name that it is a backup copy.  The MILLPWR
G2 Copy and Paste 
functions do this automatically, and is further explained below.
In the same manner, this can also apply to backing up a G-code 
program.  
It is also possible to select all programs in a folder and be saved as a 
backup to the same folder.
Copy and paste programs
Press the Program Functions soft key.
Press the Change Window soft key to select the folder tree window. 
Repeat to select the Folder Contents window.
While copying, moving, or deleting a large number of files 
a dialog will appear to display the progress. At this time a 
cancel key will be available to cancel the operation. 
						

							1346 Programming
6.2 Folders
Use the ARROW keys to highlight the program to be copied, then press 
the Select soft key.
A popup menu will open where either the highlighted program can 
be selected, or all programs in the folder can be selected. Highlight 
Select, or Select All, then press the ENTER key.
If the program that was selected is not the correct one, select the 
Clear feature, and press ENTER. The program is un selected, and 
another program can now be selected.
Press the Function soft key and select Copy from the popup menu, 
then press the ENTER key.
Press the Function soft key again, and select Paste from the popup 
menu, then press the ENTER key.
A copy of the selected program has now been copied to the same 
folder and was named with a suffix of “Copy”. Another folder location 
could have been chosen before Paste to copy the program to the new 
location.  
If a program is copied multiple times using the Paste function, each 
pasted program copy would then have sequential numbering 
(e.g. Copy, Copy (2), Copy (3), and so on). 
Program errors
When an error is detected in a program, the step with the error is 
highlighted in the program listing with a red x symbol.  Edit the 
program step to correct the error.
Additional information about the error is added to the error log. See 
Message log .
After correcting the errors, remember to delete them 
from the error log.  A quick method for deleting all errors 
in the log is to press the “0” key.
If there is more than one error in the program, only the 
first step with an error will be highlighted.  After correcting 
the first error, the next error will be highlighted. 
						

							Demonstration 
Program 
						

							1367 Demonstration Program
7.1 Demonstration Program
7.1  Demonstration Program
Overview
The following steps and key stroke sequences will guide you through 
creating a demonstration program based upon information from the 
part drawing shown. 
All dimensions are in inches. 
This will help introduce you to MILLPWR
G2 and familiarize you with 
how it operates.
Selecting datum
Although there is no clear zero point identified on this print, use the 
center of the bolt hole pattern as datum. There are advantages to 
using this location:
It is the center of the bolt hole pattern
It is the center of the large arc, making it easy to calculate the arcs 
start and end points.
The pocket is dimensioned from this point, and nearly all of the 
dimensions on the print originate from this point.
This print could also be programmed using another point such as the 
upper left corner, for example as datum.
The datum will be ready to set just before running a program. 
						

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7.1 Demonstration Program
Begin programming
From the DRO mode, begin by pressing the DRO/PGM key to enter the 
PGM mode.
If a program is loaded, save the open program, it does not have to be 
cleared. This is example is done in Inch mode. Make sure Inch is 
selected.
Selecting a tool
The first step for this program is to choose the tool that will be used 
to begin the machining. For this step, a 1/4” diameter FLAT END MILL 
will be used.
Press the TOOL key to access the Set Tool dialogue.
In the Set Tool dialogue enter 0.25 in the Size / Diameter field.
Press ENTER twice or ARROW DOWN to highlight the Tool Type field.
With the Tool Type field highlighted, press either the RIGHT ARROW 
key, or press the Tool Types soft key to open the Tool Type drop 
down menu.
ARROW DOWN to highlight the Flat End Mill.
Press the ENTER key to select the tool type.
ARROW DOWN to highlight the Spindle field.
Select Forward by pressing the Forward soft key
ARROW DOWN to highlight the Speed field and enter 1300 using the 
numeric keypad.
ARROW DOWN to highlight the Tool Position field.
Enter -5.00 in the X To field.
Enter  0.00 in the Y To field.
Enter 1.00 in the Z To field.
Press the USE key.
The programming of the part can now begin.
Refer to chapter 8 Selecting a tool on page 155 for more information 
about Tool Position.
In most dialogues, there is a drop down menu and a soft 
key available for choosing a selection.  This program 
example will refer to the use of the soft keys when 
available. 
						

							1387 Demonstration Program
7.1 Demonstration Program
Programming a line
For this example, the part will begin at the upper left hand corner, and 
cut in a clockwise (CW) direction.
Press the LINE key. The cursor will default to the From X1 field in the 
Mill Line dialogue.
Using the numerical keypad, enter the following information:
In the From:  X1 field enter -3, and press the ARROW DOWN key.
In the From:  Y1 field enter 1.5, and press the ARROW DOWN key.
In the To: X2 field enter 0, and  ARROW DOWN.
In the To: Y2 field enter 1.5, and  ARROW DOWN.
In the Z: BEGIN field enter .02, and  ARROW DOWN.
In the Z: END field enter -.25, and  ARROW DOWN.
ARROW DOWN to the Offset field and press the Left soft key.
Notice that the Angle and Tool specifications were filled in 
automatically. The tool specifications were taken from the information 
entered in Step 001.
Press the USE key.
The line is now displayed on the Program (PGM) screen and in the 
graphics area.
Next, the arc will be added to the program.
In this case, pressing the ENTER key twice is required to 
move the cursor down to the next field because a negative 
number was entered. The ARROW key accomplishes the 
same result with one press of the key.
To cut around the outside of the contour in a clockwise 
direction,  a left offset is used. MILLPWRG2 has been 
factory set with a feed rate of 10 inches per minute, and is 
used for this operation.
If it is preferred to see the complete material work piece 
size for program verification, press the VIEW key, then 
press the Block Form soft key. In the BLOCK FORM dialogue 
enter the overall blank size for the part, or cutting piece.  
MILLPWR
G2 will calculate the block form as the program 
is entered.  
						

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7.1 Demonstration Program
Programming an arc
Press the ARC key. The cursor defaults to the To: X1 field in the Mill 
Arc dialogue.
MILLPWR
G2 assumes that the program is continuing from the last 
step, so it automatically fills in the From: X1, and Y1 fields, the 
Z: fields, Tool fields, Feed: fields, and the Offset field.
Using the numerical keypad, enter the following information:
In the To: X2 field enter 0, and ARROW DOWN.
In the To: Y2 field enter -1.5, and ARROW DOWN.
In the Radius: MINOR field enter 1.5 and ARROW DOWN.
In the Direction: field, press the CW soft key.
Since this arc will be starting at the top and moving out, and around to 
the bottom, the arc will be machined in a clockwise direction.
Press the USE key.
Saving the program:
At this point, enough information has been entered that the program 
can be saved and given a name.
Press the Save / Discard soft key.
Select Save from the popup menu.
Enter the program name in the popup keyboard using the ARROW 
keys.  Name the program DemonstrationProgram.MPT. See 
Saving a program on page 118 in the previous chapter for more 
information.
Press the Save / Create soft key. 
Next, the lower horizontal line will be programmed. 
						

							1407 Demonstration Program
7.1 Demonstration Program
Programming the connecting Line
Step 001 is now highlighted. ARROW DOWN to the last blank step 
number (004) to highlight that step.
The next step to program is the line that starts at the bottom of the arc.
Press the LINE key.
Again, MILLPWR
G2 assumes that the program is continuing from the 
last step. So it has automatically filled in the From: X1, and Y1 fields, 
the Z: fields, Tool fields, Feed: fields, and the Offset field.
Using the numerical keypad, enter the following information:
In the To: X2 field enter -3.0, and ARROW DOWN.
In the To: Y2 field enter -1.5, and ARROW DOWN.
Press the USE key.
Now that the upper edge, arc, and lower line have been created, the 
following steps will close the contour.
First the lower vertical line will be added.