Powermill Macro -

Open Notepad and type the following:

// Create a 10mm End Mill
CREATE TOOL ; "10mm_EndMill" ENDMILL
EDIT TOOL "10mm_EndMill" DIAMETER 10
EDIT TOOL "10mm_EndMill" OVERALL_LENGTH 75
EDIT TOOL "10mm_EndMill" LENGTH 30
// Set Speeds and Feeds
SET TOOL "10mm_EndMill" SPINDLE_SPEED 8000
SET TOOL "10mm_EndMill" FEED_CUTTING 1500

Save the file as Create_10mm_EM.mac. In PowerMill, go to Start > Macro > Run and select your file. Instantly, the tool exists. powermill macro

The advantage? You see the logic. Next week, you can copy this file, change the diameter to 12mm, and rename the tool in 30 seconds (as opposed to re-recording).

C:\PowerMill_Macros\
├── 01_Tools\
│   ├── Create_Ballnose.mac
│   └── Create_Chamfer.mac
├── 02_Boundaries\
│   ├── Contact_Boundary.mac
│   └── Shrinkwrap.mac
├── 03_Toolpaths\
│   ├── Adaptive_Rough.mac
│   └── Spiral_Finish.mac
└── 04_Post\
    ├── Post_3Axis.mac
    └── Post_5Axis.mac

// PowerMill Macro: Create Multiple Features from CSV Data
// Reads feature definitions from CSV file and creates them
// Configuration
STRING $csv_file = "C:/Temp/features.csv"
STRING $base_layer = "PRODUCTION_FEATURES"
// Create base layer
CREATE LAYER $base_layer
ACTIVATE LAYER $base_layer Open Notepad and type the following: // Create
// Read and process CSV (format: Type,Name,X,Y,Z,Length,Width,Depth,Radius)
FILE OPEN $csv_file FOR READ AS read_handle
WHILE NOT EOF(read_handle) 
STRING $line = FILE READLINE read_handle
// Parse CSV line (simplified - use proper parsing in production)
STRING $type = EXTRACT($line, 1, ",")
STRING $feat_name = EXTRACT($line, 2, ",")
REAL $x_pos = VALUE(EXTRACT($line, 3, ","))
REAL $y_pos = VALUE(EXTRACT($line, 4, ","))
REAL $z_pos = VALUE(EXTRACT($line, 5, ","))
REAL $length = VALUE(EXTRACT($line, 6, ","))
REAL $width = VALUE(EXTRACT($line, 7, ","))
REAL $depth = VALUE(EXTRACT($line, 8, ","))
REAL $radius = VALUE(EXTRACT($line, 9, ","))
// Create feature based on type
SWITCH $type
CASE "POCKET"
    CREATE FEATURE POCKET
    EDIT FEATURE "Pocket Feature" NAME $feat_name
    EDIT FEATURE $feat_name DEPTH $depth
    EDIT FEATURE $feat_name Z_TOP $z_pos
// Create geometry
    CREATE WIREFRAME RECTANGLE CORNERS ($x_pos-$length/2) ($y_pos-$width/2) ($x_pos+$length/2) ($y_pos+$width/2)
    EDIT FEATURE $feat_name ADD WIREFRAME LAST_WIREFRAME_NAME()
CASE "BOSS"
    CREATE FEATURE BOSS
    EDIT FEATURE "Boss Feature" NAME $feat_name
    EDIT FEATURE $feat_name HEIGHT $depth
    // Add geometry creation code
CASE "HOLE"
    CREATE FEATURE HOLE
    EDIT FEATURE "Hole Feature" NAME $feat_name
    EDIT FEATURE $feat_name DEPTH $depth
    EDIT FEATURE $feat_name DIAMETER $radius
    // Add position point
    CREATE WIREFRAME POINT $x_pos $y_pos $z_pos
    EDIT FEATURE $feat_name ADD WIREFRAME LAST_WIREFRAME_NAME()


FILE CLOSE read_handle
MESSAGE INFO "Features created from CSV file"

At its core, a PowerMill macro is a simple text file (with a .mac extension) containing a list of PowerMill commands. When you "run" the macro, PowerMill executes each command in sequence—exactly as if you typed them into the command line yourself.

Think of it as a recipe. Once you prove it works, you can use it over and over without thinking about the individual steps.