Fixing a broken key on Yamaha QX1

I recently purchased a Yamaha QX1 in good condition. However, the REC key is wobbly. Once the box opened, I saw the key axle were broken and reglued, which led the key wobbling and sometimes sticky. 0
As too few QX1 were built, I didn't found any spare key available, so I decided to open the keyboard and repair the key axle. Notice the keys are actually made by Cherry.

The axle is a complex piece, made of plastic, way too difficult to carve, so I decided to 3D print one.

Here are all the pieces of the key:

The new axle fits perfectly in place.

Once reassembled

Resoldered in place.

Finally, the key looks great and works great.

I printed 4 more, just in case.