Final answer:
The statement is false because drafts are not limited to the extrusion process in 3D modeling. Drafts are angles applied to part faces to aid in manufacturing and can be used at different stages of the 3D modeling process.
Step-by-step explanation:
The statement that drafts can only be applied to a 3D model when performing an extrude is false. Drafts are a feature in CAD (Computer-Aided Design) that can be used in various ways, not only during the extrusion process. A draft is an angle applied to the faces of a part, which can occur during extrusion, but it can also be applied after a part has been extruded. Drafts help in the manufacturing process of parts, particularly those that are formed in molds, making it easier to remove the part from the mold.
Other Applications of Drafts in CAD
- Adding a draft as a separate feature after a part is modeled.
- Creating complex molds by using draft angles to ensure proper release of the casting.
- Improving the quality of injection-molded parts, as proper draft angles reduce wear on the molds and part surfaces.
In conclusion, drafts are a versatile tool within CAD software that finds applicability in different stages of the modeling process, whether during or after an extrusion.