Final answer:
In AutoCAD, designing a spur gear involves creating a base circle, drawing a gear tooth profile, duplicating the tooth profile, and adding features and dimensions to the drawing.
Step-by-step explanation:
In AutoCAD, designing a spur gear involves several steps:
- Create a new drawing in AutoCAD.
- Draw the base circle of the gear using the circle command.
- Create a profile of the gear tooth using lines, arcs, or splines.
- Use the array command to duplicate the gear profile around the base circle to create all the gear teeth.
- Edit the gear teeth by filleting edges or adding chamfers.
- Add any necessary features such as a hub or bore to the gear.
- Add dimensions and annotations to the gear drawing.
Following these steps, you can successfully design a spur gear using AutoCAD.