How can I adjust the curvature of multiple joined lines, like adjusting a curved anchor point?

[-Excelsis-]

I'm a beginner, and I don't know what keywords to use to search for this problem. LOL.

I need to make the highlighted parts of my object curved, which I tried to achieve by using the Blend tool to join multiple lines of width to make the shape I wanted (inspo attached), but it made the shape jagged. What can I do? TYIA!

[Ton Frederiks · Accepted solution]

You could draw a shape in front of the lines, select both and use a script (SplitPath.jsx) by Sergey Osokin:

https://github.com/creold/illustrator-scripts/blob/master/md/Path.md#splitpath

[Ton Frederiks]

See here the description how to use the script

https://github.com/creold/illustrator-scripts

[-Excelsis-]

This worked wonders, finally. Thanks a lot for letting me know about this script!

[Ton Frederiks]

Good to hear that helped (thanks to Sergey's script)!

[Kurt Gold]

As a beginner you may also explore the capabilities of clipping masks, compound clipping masks, the Shape Builder tool, Live Paint, Pathfinder, the Shaper tool and sometimes even the Eraser tool.