Useful 3D Prints

The most useful 3D prints solve a small daily problem: a headphone hanger under the desk, a cable tray, a battery dispenser, a stepped spice insert, a pegboard hook, a hose guide. Below are 40 functional prints in 8 groups, each with the material to use and one tip so it lasts.

Each print has a free tool to check its size, fit it to your space, estimate the filament or make the labels before you print.

Desk and home office

Prints that clear the desk surface and give small things a fixed place.

  • Under-desk headphone hanger

    A hook that clamps or screws to the underside of the desk, so the headset hangs out of the way instead of lying on the keyboard.

    Print tip PETG

    Lay the hook on its side on the bed so the layer lines run along the arm. Printed upright, the bend is where it snaps.

    Check the clamp gap

    With STL Viewer, free

  • Vertical laptop dock

    Holds a closed laptop on its edge next to the monitor, which frees a whole laptop-sized patch of desk.

    Print tip PLA or PETG

    Measure your closed laptop first and pick a design made for that thickness. Scaling the whole model also widens the base, so it is not a fix for a wrong slot.

    Measure the slot

    With STL Viewer, free

  • Slide-in under-desk drawer

    Two rails screw under the desk and a shallow tray slides between them for chargers, notebooks and keys.

    Print tip PLA

    Print a short piece of rail and a tray corner first to test the slide. The full tray is a big flat print, so check how much filament it needs.

    Estimate the filament

    With STL Volume Calculator, free

  • SD card and USB stick organiser

    A small block with slots that keeps memory cards and sticks standing up where you can see them, instead of loose in a drawer.

    Print tip PLA

    Print it with the slots facing up so nothing needs supports. A low infill is fine; it carries almost no load.

    Check the slot sizes

    With STL Viewer, free

  • Clip-on monitor ledge

    A small shelf that hooks over the top edge of a monitor for a webcam, a fidget toy or sticky notes.

    Print tip PETG

    Check that the hook depth matches your monitor bezel before printing. Print the hook lying down so the bend is not across the layers.

    Check the hook depth

    With STL Viewer, free

Phone and tech

Stands, docks and mounts for phones, controllers and small electronics.

  • Phone stand at a fixed angle

    Props a phone up for video calls, recipes or charging. A stand with a cable slot lets it charge while it stands.

    Print tip PLA

    Print it lying on its widest face for a strong part with no supports, and add small rubber or TPU feet so it does not slide.

    With Phone Stand Generator, free

  • Game controller stand or wall mount

    Keeps controllers upright on a shelf or on the wall next to the TV, so they stop living on the sofa.

    Print tip PLA

    Choose a design made for your controller model; the cradle shape is specific. Rounded cradles usually print on their back without supports.

    Check the size

    With STL Viewer, free

  • Wall-mounted AA and AAA battery dispenser

    A tall holder where new batteries go in at the top and come out at the bottom, so the oldest ones are used first.

    Print tip PLA

    Print a short section first and drop a battery in: the channel should let it roll freely without rattling sideways.

    Check the channel width

    With STL Viewer, free

  • Case for a Raspberry Pi or other small board

    A snap-fit case protects a single-board computer from dust and short circuits on a cluttered desk.

    Print tip PETG

    Match the case to your exact board version, because port positions change between versions. PETG copes with warmth from the board better than PLA.

    Check the case size

    With STL Viewer, free

  • Wall bracket for a router or smart speaker

    Lifts a router or speaker off the floor or shelf and onto the wall, often with a channel for the power cable.

    Print tip PETG

    Add extra walls (perimeters) in the slicer so the screw holes are surrounded by solid plastic. Walls add more strength than extra infill.

    Fix the file first

    With STL Repair, free

Cable management

Small prints that stop cables falling behind the desk and make them easy to tell apart.

  • Desk-edge charging cable catcher

    Holds the ends of charging cables at the edge of the desk, so they do not slide down behind it when unplugged.

    Print tip TPU or PETG

    TPU gives the slots a soft grip on the cable. Print it slowly, as flexible filament jams when pushed fast.

    Check the slot width

    With STL Viewer, free

  • Under-desk cable tray

    An open tray screwed under the desk that holds a power strip and the spare loops of every cable.

    Print tip PETG

    Print it flat with the open side up. It is long, so check the filament weight and the bed size before you start.

    Estimate the filament

    With STL Volume Calculator, free

  • Earbud and charger cable winder

    A flat shape you wind a short cable around, so it goes into a bag without tangling.

    Print tip TPU or PLA

    A flat, small print that is a good use for the end of a spool. TPU versions bend in a pocket instead of snapping.

    Make one from an SVG

    With SVG to STL, free

  • Cable name flags

    A small tag with "ROUTER", "TV" or "PRINTER" that clips around a cable, so you unplug the right one behind a crowded power strip.

    Print tip PLA

    Use a bold font and letters at least a few millimetres tall. For contrast, change filament at the layer where the letters start.

    Make the labels

    With 3D Text Generator, free

  • Cable comb for tidy bundles

    A comb with one slot per cable that keeps a run of cables parallel, for PC builds or a row of cables down a desk leg.

    Print tip PLA

    Pick a slot size that matches your cable diameter and print a single comb to test before printing a set.

    Check the slot size

    With STL Viewer, free

Kitchen

Helpers that sit around food rather than in it. Layer lines can trap food, so keep prints away from direct, repeated food contact.

  • Snack bag clip

    Closes an open bag of crisps, coffee or frozen peas. It touches the outside of the bag, not the food.

    Print tip PETG

    Print-in-place hinges need a well-tuned printer; if yours struggles, pick a two-part or spring-arm design. PETG flexes more before it breaks.

    Check the size

    With STL Viewer, free

  • Stepped spice jar insert

    A tiered riser for a drawer or cupboard that lifts each row of spice jars so the labels at the back stay visible.

    Print tip PLA

    Measure the drawer and set the exact width. Keep changes small: scaling also changes the step depth and wall thickness.

    Fit it to your drawer

    With Scale STL, free

  • Sink sponge holder with drain slots

    Holds the sponge and brush up off the sink edge so they dry between uses.

    Print tip PETG

    PETG handles water and hot tap water better than PLA. Choose a design with an open or slotted bottom so water runs out.

    Check the size

    With STL Viewer, free

  • Stepped jar lid opener

    A wedge with steps for different lid sizes that gives you leverage on stuck jar lids. Handy for anyone with weak grip.

    Print tip PETG

    Use more walls and a higher infill than usual, since you twist hard on it. A thin TPU liner inside the steps improves grip.

    Check the step sizes

    With STL Viewer, free

  • Wall-mounted bottle opener

    A bottle opener screwed to a wall or the side of a cupboard. Most designs use a metal screw or coin as the edge that lifts the cap.

    Print tip PETG

    The metal part does the work, so place it exactly as the design shows. Print with extra walls around the screw holes.

    Fix the file first

    With STL Repair, free

Bathroom

A wet, warm room, so PETG or ASA last longer here than PLA.

  • Toothpaste tube squeezer

    A slotted key you slide along the tube to push out the last of the toothpaste or hand cream.

    Print tip PLA or PETG

    Print it flat. The slot should be a little wider than a flattened tube; test with one print before making more.

    Check the slot width

    With STL Viewer, free

  • Razor holder for the shower wall

    Holds a razor head-down so it drains and dries instead of lying in a puddle on the shelf.

    Print tip PETG

    PETG copes with water and warmth better than PLA. Print the hook on its side for strength.

    Check the size

    With STL Viewer, free

  • Hair dryer wall holder

    A ring or cradle on the wall that holds the dryer by its nozzle, with room to loop the cord.

    Print tip PETG

    A dryer is heavy for a print: use screws and wall plugs rather than adhesive strips, and add extra walls around the screw holes.

    Size the ring

    With Scale STL, free

  • Corner shower shelf with drain slots

    A corner shelf for bottles that lets water run straight through instead of pooling.

    Print tip PETG or ASA

    A large, flat print: check the filament it needs before you start. Mount it with screws or a strong waterproof adhesive.

    Estimate the filament

    With STL Volume Calculator, free

  • Spare toilet roll holder

    A wall-mounted tube or stand that keeps two or three spare rolls dry and in reach.

    Print tip PLA

    A tube shape prints quickly in the slicer's vase (spiral) mode, which prints one continuous wall with no top.

    Check the size

    With STL Viewer, free

Garage and workshop

Holders for tools that get handled every day. Tougher plastics than PLA last longer here.

  • Pegboard hooks and tool holders

    Hooks, bins and screwdriver racks that lock into a pegboard, so every tool has a spot on the wall.

    Print tip PETG

    Measure your pegboard hole spacing and diameter before printing; boards differ. Print hooks on their side so the pegs do not snap off along a layer.

    Check the peg spacing

    With STL Viewer, free

  • Drill bit holder with size labels

    A stepped block with one hole per bit, labelled with the size, so you grab the right bit first time.

    Print tip PLA

    Holes print slightly smaller than drawn, so test one strip with your bits first. Make raised size labels to glue on the front.

    Make the size labels

    With 3D Text Generator, free

  • Hex key (Allen key) holder

    A small rack that holds a set of hex keys in size order instead of loose in a toolbox.

    Print tip PLA or PETG

    Print it with the holes vertical so they come out round. Keep the hole tolerance from the design; a scaled holder will not fit the same keys.

    Check the hole sizes

    With STL Viewer, free

  • Wall mount for power tool batteries

    Holds spare tool batteries on the wall or a shelf, so they stay charged, visible and off the floor.

    Print tip PETG

    Mounts are made for one battery system, so pick the one for your tool brand. It carries weight: add walls and screw through the solid parts.

    Fix the file first

    With STL Repair, free

  • Sanding block with paper clamps

    A hand-sized block that grips a strip of sandpaper at both ends, for flat, even sanding of wood or prints.

    Print tip PLA or PETG

    Print the sanding face down on the bed so it comes out as flat as your print bed.

    Check the size

    With STL Viewer, free

Travel and on the go

Light, tough prints for bags, hotel rooms and shopping trips.

  • Luggage tag with your name

    A raised-letter tag that fastens to a suitcase handle with a strap or cable tie, easy to spot on the belt.

    Print tip PETG or TPU

    Bags get thrown, so make the tag thicker than a keychain and give the strap slot a wide border. A bright colour helps it stand out.

    Make the tag

    With 3D Text Generator, free ยท Keychain Generator

  • Light-duty carabiner clip

    Clips a water bottle, keys or a small bag to a backpack strap. Only for light items: never for climbing or holding a person.

    Print tip PETG

    Print it flat so the gate flexes along the layers instead of across them. PETG flexes more than PLA before it breaks.

    Check the size

    With STL Viewer, free

  • Door wedge

    A small wedge that holds a door open or stops it slamming in a draughty hotel room or holiday flat.

    Print tip TPU

    TPU grips the floor and squashes under the door. If you only have PLA, add a rubber pad on the bottom.

    Check the height

    With STL Viewer, free

  • Shopping bag handle carrier

    A wide grip that hooks several plastic bag handles together, so heavy shopping does not cut into your fingers.

    Print tip PETG

    Print it on its side so the hook is along the layers, and keep the grip edges rounded.

    Check the size

    With STL Viewer, free

  • Travel toothbrush head cover

    A vented cap that keeps the toothbrush head clean in a wash bag.

    Print tip PETG

    Pick a design with vent holes so the brush can dry. Check that it fits your brush head width before printing a spare.

    Check the size

    With STL Viewer, free

Garden and outdoors

Sun, rain and frost are hard on plastic. PETG and ASA last longer outside than PLA.

  • Self-watering planter

    A pot with a water reservoir underneath and a wick, so herbs on a windowsill survive a few days without you.

    Print tip PETG

    Use three or more walls, as thin walls can let water seep through between layers. Check the reservoir does not leak before planting.

    Estimate the filament

    With STL Volume Calculator, free

  • Hose guide stake

    A stake with a roller or rounded top at the corner of a bed, so a dragged hose does not flatten the plants.

    Print tip ASA or PETG

    ASA handles sunlight better than PETG or PLA. Print the stake lying flat so the spike is strong along its length.

    Check the length

    With STL Viewer, free

  • Rose thorn stripper

    A clip you close around a rose stem and pull along it to strip the thorns before arranging flowers.

    Print tip PETG

    PETG flexes a little, which helps the clip open and close many times without cracking.

    Check the size

    With STL Viewer, free

  • Seed dibber with depth marks

    A pointed stick with rings at set depths, for making holes of the right depth for seeds and bulbs.

    Print tip PLA or PETG

    Print it lying flat for a strong point. Raised rings or notches stay readable after mud and washing.

    Check the depth marks

    With STL Viewer, free

  • Plant support clips

    Small clips that hold tomato or bean stems to a stake or trellis without tying string.

    Print tip PETG or TPU

    Measure your stake diameter and print one clip first. They are tiny, so print a batch in one go.

    Check the clip size

    With STL Viewer, free

Which material for which print

  • PLA

    Easiest to print and stiff. Softens in heat (a hot car, a dishwasher), so keep it for dry, indoor things.

  • PETG

    Tougher and more heat- and water-tolerant than PLA. A good default for hooks, holders and anything in the kitchen or bathroom.

  • ASA

    Handles sunlight and weather. Best for parts that live outdoors, but it needs an enclosure to print well.

  • TPU

    Flexible and grippy. Use it for bumpers, feet, cable catchers and door wedges. Print it slowly.

Make a useful print that lasts

  1. 1

    Measure first

    Measure the drawer, desk edge, stake or cable the print has to fit, and pick a design made for that size.

  2. 2

    Check the file

    Open the STL in a viewer to read its size in mm, repair it if it will not slice, and estimate the filament.

  3. 3

    Pick the material

    PLA for dry indoor things, PETG for water, warmth and load, ASA for the sun, TPU for grip and flex.

  4. 4

    Orient for strength

    Lay hooks and clips on their side so the load runs along the layers, and add walls before adding infill.

Need a shape nobody has published?

Describe it or upload a photo and get a 3D model to print, such as a planter in your style, a decorative knob cover or a figure for the top of a hook. AI shapes are not exact to the millimetre, so use a tested design or CAD for parts that must fit. Uses credits per model.

Free tools for functional prints

Frequently Asked Questions

Things that solve a small, daily problem in your own home: cable trays and cable flags, under-desk hooks and drawers, battery dispensers, drawer and spice inserts, pegboard holders, sponge and razor holders, plant clips and hose guides. The 8 groups on this page list 40 of them.
PETG is a good default: tougher than PLA and more tolerant of heat and water. PLA is fine for dry indoor organisers. Use ASA for parts that stay in the sun and TPU for parts that need to flex or grip.
Orient the part so the load runs along the layers rather than pulling them apart, add more walls (perimeters) before raising the infill, and choose a tougher material such as PETG for anything that carries weight.
Slicer defaults of around 15 to 20 percent suit most organisers and holders. For hooks, brackets and anything you twist or hang weight on, more walls usually help more than more infill.
Not by default. Layer lines can trap food and bacteria, and not every filament or nozzle is food safe. Keep prints for things around food, such as bag clips, spice risers and sponge holders, rather than things that touch food again and again.
Not one that must fit exact measurements. AI 3D tools such as Text to 3D and Image to 3D are good for decorative and organic shapes, like a planter in a style you describe or a figure for a shelf. For brackets, clips and parts that must fit, use a tested design or CAD.
Measure the space, then set the exact width, depth or height in a scaling tool such as Scale STL. Keep changes small: scaling also changes holes, slots and wall thickness, so a part that must fit something will not fit after a big change.
Yes for STL Viewer, Scale STL, STL Volume Calculator, STL Repair, 3D Text Generator and SVG to STL: they run in your browser with no sign-up. Text to 3D and Image to 3D use credits per model.