Translations:PartDesign InvoluteGear/50/en

From FreeCAD Documentation
  • When using a Sketch to position some gears, they can be represented using their pitch circles and using a tangent constraint between those circles. Their diameters can be set by the following Expression: SomeGear.NumberOfTeeth * SomeGear.Modules (assuming no profile shift and "SomeGear" being the DataName of the respective gear profile object).