Big thumbs-up to Daox!
Today I installed the three-button shift knob he made me from his 3D printer, complete with the Ecomodder logo!
Nice job, man! This is way cooler than my old shifter with the buttons taped on, and everything's working great! I was even more impressed when I took it apart and realized you also printed the buttons. Pretty cool stuff!
It's nice having all three buttons (Injector kill, clutch switch, and brake regen button) all at my fingertips, integrated into the shifter like that.
***EDIT***
Here's the explanation of the buttons since it looks like others may be interested:
The center button is a pop-up on/off clutch interrupt switch for manually controlling the assist and regen functions. When I click it in, the car thinks the clutch pedal has been pressed, so I get no assist or regen. When I'm at cruising speed in lean burn and don't want any background IMA charging, or when I know I will need to come to a stop and want to kill the injectors I click this button on. This doesn't affect auto-start in any way.
Thumb button on left is a momentary switch and controls the power to the Injectors. I can kill the injectors and coast to a stop at any speed, basically extending auto-stop function to any speed. To use the injector kill button, I have the center clutch interrupt button clicked on, or the car will keep trying to re-start since it's above normal auto-stop speed.
The button at top right is the brake regen button, and is a momentary that allows me to use the assist motor for braking (and also turns on the brake lights), which allows me to keep the IMA battery fully charged since I don't let it background charge while in lean burn. I can keep my finger on it all the way through downshifts, and it keeps charging the IMA almost to a dead stop.