FCGear Workbench

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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 GearT: Creates a timing gear T-shape.

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)

Internal involute gear

From left to right: Spur gearing, helical gearing, double helical gearing (see FCGear InternalInvoluteGear)

Involute rack

From left to right: Spur gearing, helical gearing, double helical gearing (See FCGear InvoluteRack)

Cycloid gear

From left to right: Spur gearing, helical gearing, double helical gearing (see FCGear CycloidGear)

Cycloid rack

From left to right: Spur gearing, helical gearing, double helical gearing (See FCGear CycloidRack)

Bevel gear

From left to right: Spur gearing, spiral gearing (see FCGear BevelGear)

Crown gear

Crown gear (see FCGear CrownGear)

Worm gear

Worm gear (see FCGear WormGear)

Timing gear

Timing gearing (see FCGear TimingGear)

Lantern gear

Lantern gearing (see FCGear LanternGear)

Hypocycloid gear

Hypocycloid gearing (see FCGear HypoCycloidGear)

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)