A drawer organizer that fits your drawer exactly: measure, split for the bed, print
How to measure a drawer (they taper), lay out compartments from what goes in them, split the insert for your print bed, and the prompt that designs it.Bought drawer organizers come in sizes that fit nobody's drawer: a gap at the back, a compartment too short for the kitchen scissors, a divider exactly where the spatulas want to be. An organizer printed to the drawer, with compartments drawn around what you actually keep in it, is the most used thing most printer owners ever make, and it is a box with walls. The work is in the measuring and the splitting.
Measure the drawer, front and back
Drawers taper. Measure the inside width at the front and at the back, the inside depth (front to back) on both sides, and the height from the drawer floor to the point where the drawer's front would hit the insert when it closes. Keep the smallest of each pair and subtract 2 mm for an insert that drops in without forcing. Note anything in the way: the slide hardware that bulges in at the back corners, a lip at the front.
If you have never measured for a print, how to measure an object for a 3D printed part takes ten minutes and saves a reprint.
Lay out the compartments from the contents
Empty the drawer onto the counter and arrange the things as you would like to find them. Then measure each group: the length of the longest knife, the width of the stack of tea towels, the diameter of the spice jars. Add 5 mm to each compartment for fingers. Write the layout as a list, left to right, front to back:
- Front row: 3 compartments 60 mm wide, full depth, for cutlery
- Back row: one 220 mm long for utensils, one 80 × 80 mm for the tape measure
- A pen tray 25 mm wide along the right edge
A compartment per thing beats a grid of equal squares: the grid is what you were trying to escape.
Walls, floor and the finger question
- Walls 1.6 mm, four perimeters at a 0.4 mm nozzle, strong enough and quick to print. Outer walls 2 mm if the insert will be lifted out full.
- Floor 1.2 mm or none at all: an insert that is only dividers (a grid of walls with no floor) prints in a fraction of the time, uses a third of the plastic and sits just as well on the drawer floor. Keep a floor where small things (screws, pins) would slip under.
- Height 35 to 45 mm in a kitchen drawer, 20 to 25 mm in a desk drawer. Low walls are easier to pick from.
- A chamfer on the bottom outside edge, 0.5 mm, against elephant's foot, so the insert does not rock.
- A finger notch in the front wall of each deep compartment, 20 mm wide, 10 mm deep, so you can lift things out.
Split it for your print bed
Most drawers are bigger than most beds. A 180 mm bed prints tiles up to about 175 mm; a 220 mm bed about 215; a 256 mm bed about 250. Split the insert on a compartment wall, never through a compartment: each tile is then a complete set of compartments that butts against the next. Tiles held by the drawer walls need no joint. If you want them locked together, ask for a dovetail or a simple tongue 10 mm wide along the shared wall, with 0.3 mm clearance so it slides in. What bed size you need lists the beds of the common printers.
Typing it into SpeakCAD
Give the inside size of the drawer (after the 2 mm subtraction), the compartment list, the wall height and your bed size. The AI lays the compartments out, splits the insert into tiles that fit the bed on a wall line, and states the sizes in its reply; the dimensions panel shows each compartment so you can check the longest knife still fits. A compartment that comes out too narrow is a small change: "make the second compartment 70 mm and take it from the third"; on a plan, each part's first 3 small changes are included. The G-code for your printer, among 380+ profiles, downloads next to the STL.
Prefer to do it by hand? Start from a box the tile's size, Shell it open on top to 1.6 mm walls, Add the dividers as thin boxes placed by their distance from the edges (Duplicate makes a row of them at a set spacing), and Fillet the top edges. The hand tools are free.
Printing
0.2 mm layers, 2 walls, no infill needed where there is no floor, 10 % where there is. A 200 × 150 × 40 mm tile with no floor prints in about two hours on a modern printer and weighs under 100 g. PLA is fine in any indoor drawer. Print each tile in the same orientation so the top edges match.
Materials and colours
One colour per drawer looks tidy. If a compartment is for something sharp, PETG resists the knife tips better than PLA. For a bathroom drawer, PETG again, against the damp.
Shaping a part by hand (a hole, a cut, an added shape, text, rounded corners, a shell, every size typed in millimetres) is free, and so is downloading what you shaped. With the AI, a new part spends 4 credits on a plan with its first 3 small changes free, a design change 3, a small change 2, a quick edit 1; without a plan a new part spends 3. Start with Maker: 50 credits a month for $7.99, cancel anytime.
Prompts to start from
Open one in the builder, change the numbers to yours, and the model renders in your browser, usually within a minute or two. Keep adjusting in the chat before you print.A drawer insert for a drawer 420 x 380 mm inside, 40 mm tall, 1.6 mm walls, no floor: front row three 60 mm cutlery compartments full depth, back row one 220 mm utensil compartment and one 80 x 80 mm, a 25 mm pen tray along the right edge, split into tiles for a 220 mm bed on a wall line
A desk drawer organizer 300 x 200 mm inside, 22 mm tall, 1.2 mm floor, compartments for pens 160 x 30, sticky notes 80 x 80, paper clips 40 x 40, a USB stick row 20 mm wide, finger notches on the deep ones
A bathroom drawer insert 250 x 150 mm, 35 mm tall, five compartments for toothbrush heads 25 mm wide and a 100 x 60 mm compartment, with a 0.5 mm chamfer on the bottom edge
Questions
Measure the inside width at the front and the back, the inside depth on both sides and the usable height; drawers taper. Keep the smaller of each pair, subtract 2 mm, and note the slide hardware that bulges in at the back corners.
Split it into tiles on a compartment wall, never through a compartment, each tile under your bed size (about 175 mm on a 180 mm bed, 215 on a 220 mm bed). The drawer walls hold the tiles together; add a 10 mm tongue with 0.3 mm clearance if you want them locked.
Not usually. A grid of dividers with no floor prints in a fraction of the time and uses a third of the plastic; keep a 1.2 mm floor only in compartments for things small enough to slip under a wall.