Window Sill Shelf

thingiverse

I crafted a shelf that suspends from my window sill. The outer frames are robust enough to support this 4lb (1.8 kg) fan, but I reinforced it with a brace in the middle due to using cardboard instead of printing out the shelf itself. The clearances were carefully designed for my specific window, but it's relatively simple to lengthen the horizontal and vertical components to gain more clearance. If you choose to print this, keep in mind that you'll need thick walls, some internal structure, and arrange the parts so that the weight of the objects on the shelf won't cause them to separate from each other.