Functional parts · 2026
Custom 3D printed adapters
How much does it cost to 3D print a custom adapter?
A small FDM adapter, the size of a clip or bracket (about 3 × 3 × 2 cm), costs about €10; a medium one, such as a dust extraction reducer about 6 × 6 × 4 cm, costs between €7 and €19, typically €12, excluding VAT and shipping, and takes about 2 hours of machine time. What decides whether it fits is measuring properly: inner and outer diameter with callipers, in millimetres. For everyday use, ask for PETG; TPU if it has to grip and seal, and ASA if it gets hot or sits in the sun. Fabrishare is a network of makers: post the project for free and get offers within 24–48 hours.
What adapters people order
Of the 110 registered requests between May and October 2026, 26 were for spare and functional parts. They included an adapter for the fan bracket of a TV and a housing with an M48 thread.
Workshop dust extraction
The extractor hose to the dust port of a sander, saw or mitre saw, which often aren't the same diameter.
Household vacuum
Nozzles and brushes that don't fit the wand. In Europe, 32 and 35 mm tubes are common, and an adapter joins the two.
Camera and phone mounts
A mount to fix a camera, a light or a phone wherever you need it. The standard tripod thread is 1/4-20 UNC (3/8-16 on larger gear).
A place for your tools
A wall bracket, a base or a guide for a tool that came without one, or whose bracket doesn't fit where you want it.
Reducers and connectors
Joints between pipes of different diameters with no pressure: ventilation, air outlets, extraction ducting.
When the replacement doesn't fit
The original part is no longer sold and the one from another brand doesn't fit: the adapter is the missing piece between them.
3D printed spare parts
How to measure so the adapter fits
An adapter that has to be reprinted almost always fails on one measurement. Before you post:
- 1
Callipers, not a ruler
Digital callipers measure tenths of a millimetre; a ruler doesn't. On a pipe, a tenth makes a difference.
- 2
Inside and outside, of both parts
Note what goes inside what: the outer diameter of the part that slides in, the inner diameter of the part that receives it, and how far one goes into the other.
- 3
In several places
Measure in two or three directions and at different depths: a used pipe isn't always round, and some openings are slightly tapered.
- 4
Clearance
For a sliding fit in FDM, 0.2 to 0.5 mm per side is usual. For a press fit, less, or a TPU sleeve that grips. Say which in the project: the maker adjusts it to their printer.
- 5
Photos with the callipers
Photos of both parts with the callipers on them and a sketch with the dimensions. With that, a maker can model the adapter if you don't have a file.
Which material for an adapter?
Typical, rounded values; they vary with the filament brand and how the part is printed.
| Material | What for | Watch out for |
|---|---|---|
| PLA | The first test fit, and indoor brackets with no heat | Softens around 55 °C and clips snap |
| PETG | The default: dust extraction, brackets and connectors in everyday use | Softens around 70 °C |
| ASA or ABS | In the sun, in a car or next to something hot | Hold up to about 90 °C, no more |
| TPU (flexible) | Sleeves that have to grip and seal, joints with some play, parts that damp vibration | No good if the part has to be rigid |
| Nylon (SLS or MJF) | Parts that rub, or are fitted and removed many times | Costs more, and not every maker offers it |
Rule of thumb: PLA to check the fit, PETG for the adapter you keep, TPU where it has to grip and ASA for sun or heat. If in doubt, describe the use in the project and the maker will suggest the material.
How much does a 3D printed adapter cost?
Indicative prices for the whole job, excluding VAT and shipping, worked out with the Fabrishare calculator. A small adapter, the size of a clip or bracket, comes to about €10; a medium one, such as a pipe reducer, about €12. A large adapter or a dust hood depends heavily on size and material: each maker gives the price in their offer. If it has to be designed, modelling is extra.
| Part | Technology | Range | Typical |
|---|---|---|---|
| Small spare part (bracket, clip) | FDM | €6 – €17 | €10 |
| Medium case or cover | FDM | €7 – €19 | €12 |
Which adapters to print, and which not to
A printed adapter solves a lot of joints, but not all of them. Anything under pressure, near strong heat or keeping someone safe should be bought ready-made.
Printing works well for
- Dust extraction: vacuums, workshop extractors and tool dust ports.
- Mounts and brackets for cameras, phones, lights or tools.
- Reducers and connectors for pipes with no pressure: ventilation and ducting.
- Accessories that don't fit across brands: nozzles, brushes, bases.
Better a commercial part
- Gas or compressed air: nothing under pressure.
- Mains water: a printed part isn't watertight by default and can drip or split.
- Strong heat, above about 90 °C: stoves, exhausts, next to a hot engine.
- Safety parts: brakes, anchors holding weight over people, child seats, climbing gear.
- Mains plugs and power adapters.
Battery adapters between brands: be careful
Printing the body of an adapter to use one brand's batteries on another brand's tools is possible, and designs are published. But the electrical part (contacts and wires) isn't printed, and the adapter bypasses the communication between battery and tool, which is what protects against overheating and over-discharge.
Some manufacturers also exclude damage caused by batteries that aren't theirs from the warranty; Makita, for example, says so in its terms. If you order one, use a proven design, with batteries of the same voltage as the tool, and accept that the risk is yours.
Order a test print first
With an adapter, the measurement is everything. The normal route is a quick first version, often in PLA, to check the fit, then the real part in the final material with the corrections. If you need several identical ones, approve the first before ordering the rest.
If you don't have a 3D model, a maker who designs can model it from your measurements, sketch and photos; design is quoted separately. For the file, STEP beats STL: it keeps exact dimensions and the maker can adjust a diameter without redrawing the part.
How to order your adapter
- 1Post your project for free with the file, or with the measurements, sketch and photos of both parts, and say what it's for.
- 2Makers in the network send you their offer with price, material and lead time within 24–48 hours.
- 3You compare, choose, and the maker prints it and sends it to you.
Frequently asked questions
How much does it cost to 3D print an adapter?
A small FDM adapter costs about €10, and a medium one, such as a pipe reducer of about 6 cm, between €7 and €19, typically €12, excluding VAT and shipping. If it has to be designed, modelling is extra. Each maker gives the exact price in their offer.
How do I measure a pipe for an adapter?
With digital callipers: the outer diameter of the part that slides in, the inner diameter of the part that receives it and how far they overlap, in two or three directions and at different depths. Add photos with the callipers on and a sketch with the dimensions.
How much clearance should I leave?
For a sliding fit in FDM, 0.2 to 0.5 mm per side is usual. For a press fit, less, or a TPU sleeve. Every printer is slightly different, so for a tight fit it's worth ordering a test print first.
What's the best material for an adapter?
PETG for everyday use. TPU if it has to grip and seal, like a sleeve. ASA or ABS if it sits in the sun, in a car or next to something hot: they hold up to about 90 °C, against 55 °C for PLA. PLA is fine for the first test fit.
Can I 3D print a vacuum cleaner adapter?
Yes. In Europe, 32 and 35 mm tubes are common, but sizes vary between brands and models: measure the wand and the nozzle with callipers before ordering. PETG for everyday use.
Can I 3D print a power tool battery adapter?
The body, yes; the contacts and wires aren't printed. Bear in mind that the adapter bypasses the electronic protection between battery and tool, and that some manufacturers, such as Makita, exclude damage from non-genuine batteries from the warranty. If you order one, use a proven design with the same voltage.
Can it have a thread?
Yes. Large threads can be printed; fine threads, or ones tightened many times such as a 1/4-20 tripod thread, last longer with a nut or metal insert set into the part. Mention it in the project.
Is it suitable for water or air under pressure?
No. A printed part isn't watertight by default and isn't designed for pressure: for gas, compressed air or mains water, buy a commercial fitting. For extraction, ventilation and unpressurised ducting, yes.
I don't have a 3D model. Can someone design it?
Yes: some makers model from measurements, sketches and photos, and design is quoted separately. The more dimensions you send, the fewer versions it takes.
Can other makers see or copy my design?
While quotes are coming in, makers see the technical data and an image of the part, but can't download the file. Only the maker whose offer you accept receives it.