Gears

Gears

Menu path: Insert > Gears.

The Gears submenu creates mechanical gear geometry from a selected reference model. Select a model first, then choose the gear type. The selected model gives the app a projection/work reference and a placement context.

Available gear commands

Spur gear

Creates a straight-tooth spur gear. The form has two modes: Driver and Pinion.

Driver mode

Use Driver when you are creating the first gear in a gear pair. Enter Teeth num and Pressure angle, then press Ok. The app creates the spur gear and stores gear information in the group description so another gear can be generated from it later.

Pinion mode

Use Pinion when a driver gear already exists and is selected. Enter Desired ratio. The app reads the selected driver gear data and creates a matching spur gear for that ratio.

Helical gear

Creates a helical gear from the selected reference model. Use this when you need angled teeth for smoother meshing than a simple spur gear.

Straight bevel gear

Creates a bevel gear with straight tooth direction. Use it for shafts that meet at an angle.

Spiral bevel gear

Creates a bevel gear with spiral/curved tooth direction. Use it for angled shaft transmission when a smoother tooth engagement is needed.

Practical workflow

1. Insert or select a reference model in the projection you want to work in.

2. Open Insert > Gears.

3. Choose Spur gear, Helical gear, Straight bevel gear, or Spiral bevel gear.

4. Enter the required numeric values.

5. Press Ok/Create.

6. Inspect the generated model in 3D view and use Select/Edit tools if you need to move, scale, group, or export it.

Notes

- Gear generation depends on the active projection/reference selection. If nothing happens, select a model first.

- For spur gear pairs, create the driver gear first, then create a pinion from the selected driver gear using Desired ratio.

- Pressure angle changes tooth shape and meshing behavior; common real gears often use 20 degrees, but choose the value that matches your design.