When dealing with the water jet, it is found that the water jet is made using spline curves, and when converting to polylines in CAD by inputting the IPP shortcut key crashes, the following operation steps can be followed for processing:

1. Reopen the CAD water jet file, click on each spline curve respectively, right-click and select Convert to Polyline

2. After each line is converted to a polyline, follow the operation steps for processing the water jet.

Note: If the entire water jet pattern is made using spline curves, after all the lines are converted to polylines, there is no need to input the IPP shortcut key for processing. Just input the MY shortcut key to convert the water jet pattern into a region directly.