Toolpaths and Machining: Area Clearance

Carveco Tutorial: Area Clearance

The Area Clearance Toolpath is used to create pockets or recesses in your material. It's also the best method for removing large areas of material, making it ideal for surfacing tasks like flattening spoil-boards. You can choose between Raster or Offset strategies, add ramping, and even use multiple tools to optimize your cuts.

🔹 Basic Setup

1. Select a closed vector (e.g., square or circle).
2. Go to Toolpaths > Create Area Clearance Toolpath.
3. Set Start Depth and Finish Depth (e.g., 0 to 0.125 inches).
4. Select a tool (e.g., 1/2" end mill) using Add Tool.
5. Set your material setup via the Setup button.
6. Click Calculate to generate the toolpath.

🔹 Ramping

Enable ramping to improve entry quality and reduce tool stress. Ramping allows the tool to enter the material at an angle rather than plunging straight down.

🔹 Strategy: Raster vs Offset

• Raster: Moves the tool back and forth in straight lines — good for rectangular shapes.
• Offset: Follows the shape outward/inward — better for detailed or organic shapes.

🔹 Using Multiple Tools

1. Add tools in descending size order (e.g., 1/2", 1/4", 1/8").
2. Each tool clears the area it can reach — smaller tools handle corners and tight areas.
3. Use the Measure Tool to check if a tool can reach specific regions.
4. Remove unnecessary tools to reduce machining time.

🔹 Toolpath Allowance

• Allowance: Adjust the pocketed area to leave or remove extra material.
• Final Tool Allowance: Smallest tool cleans up edges for precision finish.

💡 Tip

Use Offset strategy for detailed pockets. Add smaller tools last for clean internal corners.

🔹 Simulation and Visualization

• Use 3D View to preview toolpath depth and passes.
• Use Simulate Toolpaths to preview material removal before cutting.
• Toggle visibility of toolpaths and vectors using the light bulb icon.

The Area Clearance Toolpath is an essential feature for efficient pocketing and surfacing operations. Use ramping, multiple tools, and appropriate strategy settings to optimize your results.