Blender CAM 4-Axis CNC Tutorial | Modeling, Toolpaths & G-Code with FabEX CNC

Опубликовано: 26 Апрель 2026
на канале: Open Source CNC
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In this Blender CAM 4-Axis CNC Tutorial, you’ll learn how to model a column, generate toolpaths with the FabEX CNC add-on, and export G-code for milling on a 4-axis CNC machine. This step-by-step guide shows how to design in Blender, prepare CAM operations, and create precise rotary toolpaths.

What you’ll learn in this video:
– Modeling a CNC-ready column in Blender
– Setting origin points and alignment for 4-axis machining
– Installing and using the FabEX CNC add-on
– Creating 4th-axis rotary CAM operations in Blender CAM
– Generating and exporting 4-axis CNC G-code
– Milling on a CNC machine

If you’ve already tried 4-axis CNC machining in Blender with the FabEX CNC add-on, now it’s time to see how it’s done in FreeCAD 1.1! In this new tutorial, we use FreeCAD’s CAM tools to V-carve text on a cylindrical part, showing how to model, generate toolpaths, and control the rotary A-axis for precise engraving. It’s the perfect next step if you want to expand your 4-axis CAM skills beyond Blender and explore FreeCAD’s powerful open-source machining workflow.
V-Carve Text on a Cylinder | 4-Axis CNC Tutorial in FreeCAD 1.1:    • V-Carve Text on a Cylinder | 4-Axis CNC Tu...  

Part of the playlist: Blender CAM G-Code Tutorials – Free CNC Milling Workflow:    • Blender CAM G-Code Tutorials – Free CNC Mi...  

0:00 Introduction | Blender CAM to 4-Axis CNC G-Code Workflow
0:59 Modeling a Cylinder with Dimensions in Blender
1:42 Setting the Origin Point for CNC Alignment in Blender
2:48 Creating a 3D Cylinder with Hemispherical Ends
4:40 Making a Circular Array of Domed Cylinders in Blender
6:15 Modeling Round Bottom Slots Around the Column
6:39 Extruding & Scaling Faces to Shape the CNC Column
8:40 Positioning Origin & Object for 4-Axis G-Code Generation
9:35 Installing the FabEX CNC Add-On in Blender CAM
10:38 CAM Settings Before Adding CNC Operations
11:19 Creating a New CAM Operation | Axis Count & Strategy Setup
12:34 Setting Up 4th-Axis CAM Operation in Blender (FabEX CNC Tips)
17:48 Generating 4th-Axis Rotary Toolpaths in Blender CAM
18:14 Exporting 4-Axis CNC G-Code from Blender
18:48 Final Thoughts

The link to the GitHub page where you can download the latest version of the addon: https://github.com/pppalain/blendercam

If you want to support me, you can purchase a super thanks or subscribe to my Patreon page. Subscribing to my Patreon page means you also have access to this video without interruptions. You can also buy a one time support through the following links:

My Patreon page:
  / opensourcecnc  

Big Thanks ($10):
  / one-time-big-thanks-244233  

Thanks ($3):
  / one-time-thank-you-244228  

You can book a one on one session with me, to sort things out if you need help with certain projects or situations:
  / one-hour-one-on-138672386  

#4AxisCNC #ColumnMilling #BlenderCAM #FabEXCNC #Gcode #CNCmilling #BlenderTutorial