FCGear_Workbench.md

FCGear Workbench

Introduction

The FCGear Workbench is an external workbench for manufacturing different types of gears and worm gears in FreeCAD. The parametric modelling allows the required geometries to be changed at any time. For example, by changing a few parameters, the involute gear becomes either a spur gear, helical gear or double helical gear.

In order for the results from FCGear to be usable, a certain amount of basic knowledge about the different types of gearing is required. Module, pitch diameter or root diameter are common terms and should therefore be known.

In conjunction with 3D printing, home users now have the opportunity to design and produce gears and worm gears according to their own personal ideas and, if necessary, to adapt them to the constructional conditions.

The FCGear Workbench can be installed via the Addon Manager. For manual installation see Installing more workbenches.

After installation, the tools are available in the Gear toolbar and in the Gear menu.

Tools

• Involute Gear: Creates an external involute gear.

• Internal Involute Gear: Creates an internal involute gear.

• Involute Rack: Creates an involute rack.

• Cycloid Gear: Creates a cycloid gear.

• Cycloid Rack: Creates a cycloid rack.

• Bevel Gear: Creates a bevel gear.

• Crown Gear: Creates a crown gear.

• Worm Gear: Creates a worm gear.

• Timing Gear: Creates a timing gear.

• Lantern Gear: Creates a lantern gear.

• HypoCycloid Gear: Creates a hypocycloid gear with its pins.

• Combine two gears: Combines two gears.

Types of gears

Involute gear

*From left to right: Spur gearing, helical gearing, double helical gearing (see [FCGear InvoluteGear](FCGear_InvoluteGear.md))*

Internal involute gear

*From left to right: Spur gearing, helical gearing, double helical gearing (see [FCGear InternalInvoluteGear](FCGear_InternalInvoluteGear.md))*

Involute rack

*From left to right: Spur gearing, helical gearing, double helical gearing (See [FCGear InvoluteRack](FCGear_InvoluteRack.md))*

Cycloid gear

*From left to right: Spur gearing, helical gearing, double helical gearing (see [FCGear CycloidGear](FCGear_CycloidGear.md))*

Cycloid rack

*From left to right: Spur gearing, helical gearing, double helical gearing (See [FCGear CycloidRack](FCGear_CycloidRack.md))*

Bevel gear

*From left to right: Spur gearing, spiral gearing (see [FCGear BevelGear](FCGear_BevelGear.md))*

Crown gear

*Crown gear (see [FCGear CrownGear](FCGear_CrownGear.md))*

Worm gear

*Worm gear (see [FCGear WormGear](FCGear_WormGear.md))*

Timing gear

*Timing gearing (see [FCGear TimingGear](FCGear_TimingGear.md))*

Lantern gear

*Lantern gearing (see [FCGear LanternGear](FCGear_LanternGear.md))*

Hypocycloid gear

*Hypocycloid gearing (see [FCGear HypoCycloidGear](FCGear_HypoCycloidGear.md))*

References

• Author: looooo
• Home page: https://github.com/looooo/FCGear
• Source code on github: https://github.com/looooo/FCGear

Links to FCGear Workbench

• FreeCAD Wiki: Macro_FCGear
• FreeCAD Forum: Bevel gear and FCGear
• Tutorials:
• Videos:
• Files:
• Report bugs: Please report bugs at https://github.com/looooo/FCGear/issues

Other useful links

• PartDesign InvoluteGear: This tool allows for the creation of a 2D profile of an Involute gear. This 2D profile is fully parametric, and can be padded with the PartDesign Pad feature.
• External Workbenches: A list of all current external workbenches of FreeCAD
• Macros recipes
• Cycloid gearing (German)
• Involute gearing (German)

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