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CAD design + 3D printing — UK

InfillFab

Bring a sketch. Leave with a working part.

InfillFab designs and prints functional parts — replacement brackets, enclosures, jigs, prototypes, small batches. You don't need a CAD file, or any CAD experience. A photo, a drawing, or the broken original is enough.

QuantitiesOne-off to small batch
TechnologiesFDM + SLA resin
Design filesYours to keep

Three ways we can help, or all of them at once.

Most customers arrive with a problem, not a file. We take it from wherever you are — idea, sketch, broken part, or finished CAD — through to a part you can actually use.

S.01

CAD Design

No CAD file? No problem. We turn sketches, photos, measurements — or the broken original — into a precise, manufacturable 3D model, reviewed with you before anything is printed.

  • Reverse-engineering of existing parts
  • Design from sketch or verbal brief
  • STEP + STL files included — yours to keep
S.02

3D Printing

Functional parts, printed in the right material with the right structure inside. One-off prototypes, replacement parts, or repeatable small batches — each one tuned to how it will actually be used.

  • FDM for tough, functional parts
  • SLA resin for fine detail
  • Material + infill chosen per part, not per habit
S.03

Manufacturing Support

Already making something? We review designs for printability, help pick materials and tolerances, and tell you honestly when 3D printing is the wrong tool — and what to use instead.

  • Design-for-manufacturing reviews
  • Material & tolerance guidance
  • Prototype-to-production planning

From "can you make this?" to a part in your hands.

STEP 01

Tell us what you need

Send whatever you have — a sketch, a photo, rough measurements, a CAD file, or just a description of the problem. Tell us how the part will be used and loaded.

STEP 02

Design & fixed quote

We model the part, send you previews to approve, and quote a fixed price for design and printing. No surprises, nothing printed until you sign off.

STEP 03

Print & verify

Material and internal structure are chosen for the job the part has to do. We check dimensions and fit before anything leaves the bench.

STEP 04

Deliver & iterate

Your part ships with its design files. Need a tweak, a stronger version, or twenty more? Revisions are fast because we keep everything versioned.

Typical projects: discontinued appliance parts, custom brackets and mounts, enclosures for electronics, jigs and fixtures for workshops, prototypes for product ideas, and small production runs.

The strength of a printed part is decided inside it.

Slice open any printed part and you'll find a hidden pattern — the infill — that determines whether it snaps or survives. Most services print everything with the same default. We tune the pattern and density to the load, which is the whole reason for the name. Pick a pattern to see what it's for:

INF.01 Honeycomb

Hexagonal cells spread load evenly in every direction — the standard choice when a part needs to be strong without being heavy.

Typical density25%
Best forStructural brackets, load-bearing mounts

Chosen per part, not per habit.

Our regular rotation, not a ceiling. Every quote tells you which material we'd pick for your part and why.

PLA
Rigid, accurate, low-warp, clean matte finish. Our default for anything that lives indoors and away from heat.
Prototypes · indoor fixtures · display pieces
PETG
Tougher than PLA, handles moisture and outdoor life. Our go-to the moment a part leaves the desk.
Outdoor brackets · functional parts · wet environments
ABS
Impact-resistant workhorse that machines and sands cleanly, and can be vapor-smoothed to a glossy finish.
Housings · machinable parts · glossy finishes
TPU
Flexible and rubber-like — bends, seals, grips, and bounces back under sustained load.
Gaskets & seals · grips · protective bumpers
TPU-GF
Glass fibre tames TPU's stretch — flexible enough to absorb impact, structured enough to hold a form.
Impact guards · semi-rigid mounts · cases
PC-CF
Carbon-fibre reinforced polycarbonate: stiff, dimensionally stable, and heat-resistant well past where most filaments give up.
Heat-stressed parts · load-bearing mounts
Resin (SLA)
UV-cured layer by layer for a smooth, high-detail finish no FDM nozzle can match.
Fine detail · tight-tolerance fits · miniatures
Something else?
PETG-CF, ASA, nylon, specialty composites — if your part needs it, we'll source it or test it.
Ask about a material →

The InfillFab parts line is in development.

We're turning our most-requested custom jobs into a line of ready-to-order parts — each one load-tested and printed with the infill it actually needs. Until then, everything is built to order — which means your part gets designed around your exact problem, not pulled off a shelf.

First access

Want to know when the shop opens?

Drop us a line and we'll let you know when the first parts go live — no spam, just the launch.

Join the launch list →

Questions we get a lot.

Do I need a CAD file to order a part?

No. A sketch, a photo, measurements, or even the broken original is enough — CAD design is half of what we do. If you already have an STL, STEP, 3MF or a drawing, even better: quoting is faster.

What quantities do you print?

Anything from a single prototype to small production batches. For larger runs we'll tell you honestly when 3D printing stops being the right tool — and help you plan what to move to instead.

What materials can you print?

PLA, PETG, ABS, TPU, glass- and carbon-fibre reinforced blends, and SLA resin for high detail. If your part needs something specific, we source it or test it first.

How does pricing work?

Every quote is per project and free. The price depends on design time, part size, material, and quantity — and you get a fixed number before anything is printed. No hourly surprises.

Who owns the design files?

You do. Every design job includes the final files (STEP and STL). You're never locked in to printing with us — though we'd like to think you'll want to.

Can you improve a part that keeps breaking?

That's one of our favourite jobs. We look at where and how it fails, then redesign the geometry, the material, and the internal structure so the next one doesn't. It's the whole idea behind the name.

Tell us about your part.

Describe what you need — what the part does, roughly how big it is, and how many you need. If you have photos, sketches, or files, mention it and we'll reply with a way to send them.

  • Quotes are free and fixed-price
  • No CAD file or experience needed
  • Honest advice, even if the answer is "don't 3D print this"