We were tasked to create something to make a teacher's life easier, so we met with one of the art teachers. She showed us her cabinet, which was very large, but filled with only small materials at the bottom. She told us she wanted to more efficiently use the space, so we decided we would make her some sliding drawers that could hang from the top so that the space in the top of the cabinet could be used. This is what we designed.

There are 9 pieces that create the frame for the drawers; 3 middle pieces, 3 right pieces, and 3 left pieces. They each have holes in the top, so they can be screwed into the bottom of the wooden shelf. These 9 pieces have indentations in the side, so the drawers (which have small extrusions to fit in. Between each set of 3 frame pieces, there are 3 track extenders, which create a more solid platform for the drawers to slide along. These pieces stay in place with thin metal rods, and the pieces have small holes to keep them attached. So, there are a total of 9 frame pieces and 18 track extenders.

The drawer itself has a main frame which is 3d printed, but the side walls, back wall, and bottom are made of cardboard. There are small edges that allow cardboard to fit tightly in, 1 piece on each side and 2 pieces on the bottom. There are also 4 small caps that go on top of the cardboard and glued in place to make the sure cardboard is secure. There is a left cap, a right cap, and 2 identical front caps.

The metal rods we used can be found at https://www.amazon.com/gp/product/B00QBYPT6Y/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1. Cheap and good :]
If the link doesn't work, try it here: https://tinyurl.com/y7uyunzm
If it STILL doesn't work, they're called Uxcell Stainless Steel Round Bar (20 Piece), 300mm x 2mm on Amazon.

The entire design process was very long. Our initial model used too much filament for it to be cheaper than to just buy regular drawers. So we redesigned it he model to be just a frame and used cardboard to make he bottom and walls of the drawers.
Additionally, the model went through many changes in sliding mechanisms. Because of the orientation of the print, certain sliding mechanisms would print well and result in spaget.