FreeCad - Tutorial - Bevel Gear step by step

FreeCad - Tutorial - Bevel Gear step by step In FreeCAD, a bevel gear is a type of mechanical gear used to transmit rotational motion between two shafts that are typically at an angle, often 90 degrees. Bevel gears are conical in shape, with their teeth arranged along the surface of the cone. They are commonly used in machinery to change the direction of force or motion. Creating Bevel Gears in FreeCAD FreeCAD allows for the design of bevel gears using its "Part Design" or "Addon Workbenches" like the Gear Workbench. Here's a breakdown: 1. Gear Workbench (Addon) The Gear Workbench is a FreeCAD extension that simplifies the creation of gears, including spur, helical, and bevel gears. To use it, you’ll need to install it from the Addon Manager: Go to Tools - Addon Manager. Search for "Gear Workbench" and install it. Restart FreeCAD to activate the workbench. 2. Creating a Bevel Gear Once the Gear Workbench is installed: Switch to the Gear Workbench. Select "Create Bevel Gear" from the toolbar. Customize the gear parameters in the Data Properties panel: Number of Teeth: Controls the gear size and meshing. Pressure Angle: Defines the angle between teeth, affecting smoothness and strength. Module: A metric unit that defines the size of the gear teeth. Cone Angle: Specifies the angle of the cone for the bevel gear. Click OK to generate the bevel gear. 3. Export or Modify You can refine the gear using other workbenches, such as the Part Design Workbench, for further machining or integration into assemblies. Export the gear as a 3D model (e.g., STL) for manufacturing or simulation.