Bump Knob for Ryobi 40V Expand-It String Trimmer

My 8 year-old Ryobi trimmer's bump knob finally wore down to where it was no longer working so I used TinkerCad to create a replacement. They sell on Amazon and in stores, but it was a fun challenge to try and create my own. I used Polymaker PolyLite ASA and did a pretty solid infill of 85%. The first use worked perfectly. I'm curious to see how long it will hold up. I believe this part if pretty universal across many Ryobi trimmers, but mine was from a 40V Expand-It (Model #: RY15523A).