Grill

Rotate the pink screw to adjust the distance between the food and the heat source. The grate (blue and beige) is attached to the orange connecting rods of a parallelogram mechanism consisting of yellow and green rockers. The inclination of the grate can be adjusted. The weight of the grate maintains the contact of the pink screw with the yellow rocker. See a real grill: STEP files of this video: Inventor files of this video: