Make your Wii Les Paul whammy bar more suitable for left-handed play with this simple recreation of the stock assembly. It consists of three parts: a base plate that's been designed to fit in an empty Wiimote cavity, and two side plates to mount the whammy bar joint housing on the base.

Requirements

• An empty Wiimote slot. This mod is not compatible with adapters that also use this space.
• Flush cutters to remove some plastic on the stock bar mount.
• Double-sided tape or possibly an equivalent like Velcro.
• Soldering iron to rewire the potentiometer.
• Hook-up wire long enough to reach the new mount point.

Installation steps

1. Test the fit. The side plates should slide into their respective slots on the base plate (note: it's a tight fit) and the base should fit neatly within the cutout inside the Wiimote cavity.
    
2. Add double-sided tape to the larger flat surfaces on the bottom of the printed base plate.
    
3. Install the base plate in the Wiimote opening. Make sure to route your external connection wire through the rounded wire cutout.
    
4. Replace the potentiometer wiring with wires long enough to reach the Wiimote slot. Be sure to swap the wires on the outer terminals (i.e. the wire going to terminal 1 now goes to 3 and vice versa) since the whammy bar is now moving in a different direction. Route the wires through the same cutout used by the original Wiimote cable (picture below).
    
5. Clip off the plastic tabs on the whammy bar joint that restricts its range of motion in a left-handed setup (picture below).
    
6. You might also need to bend over the tabs on the back of the potentiometer so that it fits within the slot (picture below).
    
7. At this point, you should be able to fully reassemble the whammy bar and slide it into the new mount. It can be kind of annoying to get the sandwiched plate+whammy+plate assembly into place with the bar coming out through the top of the guitar, but you'll eventually get it.
    
8. Load up Santroller and recalibrate the whammy bar.
    
9. Enjoy!

Print settings

I used the following settings on my final print:

• Layer height: 0.2mm
• Support type: Normal
• Infill density: 15%
• Infill pattern: Grid

The base and anchor plates were printed on their flattest sides, while the control plate was printed at an angle as that's how Bambu Studio automatically oriented it. I experimented with tree supports and gyroid infill on previous iterations of the models but found them functionally the same as the settings above.