Cam

What I do

• Generate CNC machine toolpaths from CAD models
• Select appropriate machining strategies and tools
• Optimize cutting parameters for efficiency and quality
• Simulate machining operations to detect collisions
• Post-process toolpaths to machine-specific formats

When to use me

• When programming CNC machines (mills, lathes, routers)
• When selecting cutting tools and parameters
• When simulating machining operations offline
• When optimizing manufacturing workflows
• When generating G-code for CNC machines

Key Concepts

CNC Programming Basics

# G-code fundamentals
class GCodeGenerator:
    # Rapid move (positioning)
    def rapid(self, x=None, y=None, z=None):
        coords = self._format_coords(x, y, z)
        return f"G0 {coords}"
    
    # Linear feed (cutting move)
    def linear_feed(self, x=None, y=None, z=None, feed=100):
        coords = self._format_coords(x, y, z)
        return f"G1 {coords} F{feed}"
    
    # Circular interpolation (clockwise)
    def clockwise_arc(self, x, y, i, j, feed=100):
        return f"G2 X{x} Y{y} I{i} J{j} F{feed}"
    
    # Circular interpolation (counter-clockwise)
    def counterclockwise_arc(self, x, y, i, j, feed=100):
        return f"G3 X{x} Y{y} I{i} J{j} F{feed}"
    
    # Tool change
    def tool_change(self, tool_number):
        return f"M6 T{tool_number}"
    
    # Spindle control
    def spindle_on(self, rpm, clockwise=True):
        direction = "M3" if clockwise else "M4"
        return f"{direction} S{rpm}"
    
    def spindle_off(self):
        return "M5"