Pegas Offset – User Guide
1. Introduction
Pegas Offset is a professional, high-performance CAD/CAM helper designed to visualize CNC tool path sweep directly in the Design workspace. No more switching workspaces to check if your cutter has enough room to clear.
By projecting the outer boundaries of components and extruding a 3D ring matching your tool radius, it creates a persistent clearance model. You can drag and nest parts visually, guaranteeing that your sheet layout has safe spacing before generating any CAM profiles.
2. Installation
1. Download the installation package from your dashboard.
2. Run the installer and launch Autodesk Fusion 360.
3. Navigate to Tools → Add-ins to verify loading status.
Copy the plugin folder directly to the following directory:
Windows: %APPDATA%\Autodesk\Autodesk Fusion 360\API\AddIns\
macOS: ~/Library/Application Support/Autodesk/Autodesk Fusion 360/API/AddIns/
3. Finding the Button in Fusion 360
Once loaded, the plugin commands integrate into your Fusion 360 workspace under the dedicated PEGAS tab panel.
Figure 1: PEGAS Tab containing the Offset command icon on the Fusion 360 toolbar (Click to zoom/pan)
Button Visibility
If the button does not display, right-click the toolbar and select “Show Panel” to activate the Scripts and Add-ins panel.
4. Step-by-Step Usage Guide
Launch the Command
Click the OFFSET button on the PEGAS toolbar tab. The non-blocking parameters window will appear on the screen.
Select reference faces
Click Select Faces… and pick the flat top or bottom face of your workpiece body. The system will log selected items dynamically.
Configure geometry & height
Input tool diameter and height offset. Tap Create Offset Body to compute the 3D clearance envelope.
5. Parameter Reference
The non-blocking dialog enables rapid parameter entry directly within your viewport context.
Figure 2: PEGAS OFFSET dialog interface options and control groupings (Click to zoom/pan)
Face List
List of planar surfaces to project tool clearances. Features a Clear button to reset current selections.
mm (Number)
Specifies the cutter diameter. The calculated physical offset is exactly half of this value.
mm (Number)
Thickness of the generated offset body. Use negative values (e.g., -22) to flip body direction downwards.
Checkbox
Saves all active component coordinates prior to calculating the offset bounds, preventing alignment slips.
Checkbox
Automatically duplicates the generated clearance body onto all linked components on the sheet, vital for nesting checks.
Buttons
Action group to batch hide, show, or permanently delete all offset bodies in a single click, cleaning up your model browser.
6. Understanding the Output
The add-in constructs a solid body named Offset_[ComponentName]. This body displays the precise outer boundary of the tool sweep. You can check the clearance between closely nested workpieces on your panel sheets visually.
Figure 3: Multi-component layout with visual tool clearance margins on nested sheets (Click to zoom/pan)
Visual Spacing Clearance
If the offset body of part A touches part B, your spacing is insufficient. Ensure a clear gap between the offset body and neighboring objects.
7. Troubleshooting
Error: “Could not project face contour”
Verify that the selected face is completely planar. Make sure there are no minor slopes or features that break the boundary loop. Pocket holes inside the face boundary are automatically skipped.