The drawers can be customized in three dimensions: width, height, and depth. They are stackable vertically and horizontally, maintaining their sleek, flat design. You will find other parameters in the design, but the integrity is not granted. But feel free to play with them, you can allways return to de original file. 

The corners of the drawer units have a 10 mm zone reserved for the joining pieces. Drawer units of different sizes can be combined, taking care to respect these corners. 

Each chest of drawers consists of 4 pieces: box, drawer, front panel, and handle. Nuts for attaching the handle are also included, or if you prefer you can use M5 iso nuts.  Chest drawers are maintained together with the joints. That way you can customize, size of drawers, and colors of the pieces. 

I'm willing to see your combinations. 

How customize sizes

Fusion360 File is included so you can choose your size, but also several .stl files are provided for 150 mm deep.  For parametric go to fusion360 menus, under ‘Modify’→'Change parameters'

The easiest way to achieve combinations is by using multiples of a minimum unit. The absolute minimum unit would be 2 cm. Although I've used 25 mm in my designs. High is customizable from 2 cm to your printer limit. Width and deep  size from 50 mm to your printer limits.

Even if is recommended to customize to your own sizes, using the fusion file. I decide to provide also some stl for 150mm deep and several high and width measures. The measures are indicated in the names of the files as  High x Width x Deep , notice that handle are identified just for width and frontal by high x deep. Joints are always the same, not need customize them just download and choose your fit.

Update v 1.4.

Now the thickness of the drawer is parametric, as well as some measures of the handel.

¿How to print?

1st Download parametric file, joints and nut
2nd Open parametric file in fusion360 and go to Modify-> Change parameter and choose width, height and deep.
3rd Export  BOX, Handle, Frontal and drawer 

Print them:

External box is though to be printed in vertical with small supports in the corners. 

Handel. As they include screws, print the handle  with de screw facing up.  Print this part at layer high of 0.1 as well as the nuts. I recommend print them together. No supports needed.

Frontal.  Supports are not required. I love print them lay on a PEI bed to obtain that rough texture.

Drawer.  No supports are needed. Sides and backpart are designed with 45º angles,

Joints.  No supports are needed.

Nuts. Print as many as you need 2 per each drawer.  Lay them on a flat side, no supports are needed

How to assembly:

1º insert handle on frontal and screw the nuts on to secure it.

2º Insert the frontal on the drawer, gently. There are vertical slots for inserting them that fit quite snugly. Try to keep the front straight during insertion.

3º Insert de drawer inside the box.

4º Put your drawer combinations together and join them with the connectors. You can put them on the back and front.