Split with Surfaces
Use the Split: Surfaces tool to split surfaces and solids using surfaces.
- 
                From the Geometry ribbon, click the Split > Surfaces tool.
                 
 Figure 1.
- Select Surfaces or Solids from the Target selector on the guide bar.
- Select target surfaces/solids.
- Optional: 
                On the guide bar, click  to define split
                    options. to define split
                    options.
- Activate the Tool selector on the guide bar.
- Select the surface(s) used to split.
- Optional: 
                Review the split sections.
                Restriction: Only available when splitting solids.- Activate the Extend trimmer option.
- 
                        Click the Review button on the guide bar.
                        The split sections are previewed, as shown below on the left. Deselect sections by holding Shift and left-clicking to cut the solid at only the desired locations, as shown below in the middle. The final result is shown on the right. 
 Figure 2.
 
- Click Split on the guide bar.