Hinges and magnets hold this tray in place under an upper cabinet. To install the tray, screw on the hinges first. Then open the cabinet door above and clamp the tray to the underside of the ...

[Dino] continues his to satisfy his weekly hacking goal by building a cat door for his pets ... in the breeze using parts from a magnetic cabinet latch. No sooner does he have the flap in place ...