Taper
Resize the two ends of a supported 3D object independently.
Taper makes the ends of a supported straight 3D object narrower or wider. The canvas grips, typed cursor input and Tool Guide share the same values. It works on a whole object, not a selected face, and is not a 2D outline tool.
Select the 3D object
In a 3D editor, select a supported object and choose Taper. A locked object, an unsupported shape or a face-only selection shows a reason instead of applying a partial result.
Choose the direction
Use Axis to choose Up or Along. The initial axis is fitted to the selected object. Check which end is active before changing a size.
Change an end
Drag a top or bottom square, enter an explicit size such as a length with its unit, or edit Top size and Bottom size in the Tool Guide. These size fields are percentages. Top width and Bottom width show the resulting widths.
Apply or cancel
Check the preview, then use Apply, finish the drag or apply the typed cursor value with Enter. An end cannot shrink to nothing, and a shape with unsupported sloped or shaped faces may refuse tapering. Esc cancels the current interaction; Undo reverses a committed taper.