Powermill Macro May 2026

Before you delete or modify something, you must activate it.

You don’t need to memorize commands to get started. PowerMill includes a built-in macro recorder.

Pro tip: Open your recorded macro in Notepad immediately. You’ll see a lot of redundant VIEW MODEL and REDRAW commands. Delete those to make your macro run faster.

One of the most underappreciated aspects of macro writing is the User Interface (UI). The INPUT commands—whether a simple MESSAGE or a complex custom form—represent a dialogue between the software and the user.

A deep macro does not simply run; it asks. It asks for the material type, the machine configuration, or the desired surface finish. By doing so, it forces the programmer to make conscious decisions before the code is generated. It creates a pause, a moment of reflection in the high-speed world of CAM. A macro that asks, "What is the maximum depth of this cavity?" ensures that the programmer is aware of the limitation, preventing the blind execution of a strategy that could crash the machine. In this sense, the macro acts as a safety net, a digital colleague that double-checks the human's intent. powermill macro

Don't make your users type macro names. Integrate them.

// 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
// Read and process CSV (format: Type,Name,X,Y,Z,Length,Width,Depth,Radius)
FILE OPEN $csv_file FOR READ AS read_handle Before you delete or modify something, you must activate it
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"
 Pro tip:  Open your recorded macro in Notepad immediately

You can add your macro folder to the PowerMill ribbon or toolbar.

Now, you have one-click access to your automation.

The simplest way to get started.