01 · Raw input
A sketch on a napkin. A broken part. A photo.
Send what you've got — a scribble, a phone photo, a measurement, or the broken thing itself. No CAD file needed.
UK · PRODUCT DEVELOPMENT & PROTOTYPING · IDEA TO FIRST WORKING UNIT
Product development, from a sketch on a napkin to a part on your desk.
No CAD (computer-aided design) file? We build it with you. Half-broken prototype? Send it. Rapid prototyping for the idea a moulder said was impossible · that's usually where 3D printing earns its keep.
How it works
How a sketch becomes a real prototype.
Same product, five steps, real client work — just scroll straight down, no sideways jumping.
02 · CAD with you
We build the CAD. You stay in the decisions.
We model the part from your inputs in Fusion 360 or SolidWorks-compatible workflows. You steer the design calls; we do the heavy lifting between rounds.
03 · V1 in hand
First print. On us, when you commit.
Form, fit, function — a real thing you can hold, not a render. Most "this won't work" gets solved once V1 is in your hand.
04 · Iterate
V1 → V2 → V3. Revisions inside scope.
Most projects settle in V2 or V3. Revisions inside the original scope are included — we don't itemise every tweak.
05 · It went to market
Then it shipped. We just can't show which one.
Most of what we build goes to market under NDA. You leave with the production STEP / 3MF / native files; next time you see it, it's on someone's shelf.
Rapid prototyping, Bournemouth - UK 3D printing service
A complete rapid prototyping and product development service for engineers, founders and in-house R&D teams. We take you from a sketch on a napkin to a first article — without tooling, without a CAD file, and without the usual lead times.
9,500+ parts shipped from 3D Printing Express this year · UK 3D printing service, Bournemouth
RELIABILITY
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parts shipped this year
SPEED
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time to receive your part
COMMUNICATION
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Year-to-date · 3DPE internal data · updated daily, last verified
WORK WE'VE DONE
Real client builds.
Roberto
Jet ski body kits · ongoing design partnership
1+ year working relationship · iterative body-kit design · print-to-production handoff
Bournemouth University
Robot arm · custom mechanical components
R&D project · bespoke mechanical components · CAD + prototype + production
3D printing isn't a cheaper way to mould. For some designs, it's the only way they get made.
Injection moulding needs every part to release from a cavity. That one physical rule rules out a huge chunk of modern product design · interlocked mechanisms, sealed internal channels, lattice structures, one-piece flexures, variable wall thicknesses, per-unit customisation.
None of these are exotic. We regularly design and print these parts for product developers whose original brief included "a moulder told us this isn't possible".
You're choosing between 3D printing and not making the product at all.
EXAMPLES · 3D PRINTING YES · MOULDING NO
Examples of what we can do & injection moulding can't.
Interlocked + articulated
Chains, hinges, ball-joints, mesh structures printed as a single assembled piece. No assembly time, no post-processing. Moulding literally cannot produce parts that never separated.
Moulding equivalent: ✗ not possible
Internal channels & cavities
Fluid paths, air flow, sealed cable routes, conformal cooling channels for tooling inserts. A mould tool can't form geometry inside solid material; a printer just doesn't print where the void is.
Moulding equivalent: ✗ requires multi-part assembly
Lattice & topology-optimised
Internal gyroid infill, honeycomb structures, stress-led rib geometry. Half the weight, most of the strength · common on aerospace, bike, and sports-equipment parts. Impossible to demould.
Moulding equivalent: ✗ not possible
One-piece flexures
Single-material springs, snap-fits, clip housings with compliant zones, living hinges. 3DP holds tight tolerance and lets us tune stiffness zone-by-zone; moulding forces two parts and a pin.
Moulding equivalent: ~ limited material geometry
Variable wall thickness
Thin where it can be, thick where it has to be · in the same wall. Moulding needs uniform thickness for flow and cooling; 3DP couldn't care less what the cross-section looks like.
Moulding equivalent: ✗ causes warping + sink marks
Per-unit customisation
Every unit in a 500-piece batch can be uniquely serialised, sized, numbered, or subtly altered without changing tooling. One mould makes 500 of the same thing · no exceptions.
Moulding equivalent: ✗ one tool per variantFree V1sample · or prototype on smaller parts
Free V1 sample. We cover the test print when you're committed to the build.
Bring a sketch, a photo, a CAD file, or a broken part. We'll work the design with you and print V1 on us as a test sample · or the full first prototype on smaller parts (roughly fist-sized for FDM). Larger pieces or experimental one-offs we quote the print up front, always agreed in writing first.
Project pricing beyond CAD
- Scope of design work (hours)
- Number of iterations expected
- Print count + material
- Post-processing (sanding, paint, assembly)
- Deadline pressure
- Transition to batch (retainer available)
Product developers, DTC brands, in-house R&D, independent inventors.
If you're designing a new product · or unsticking an old one · and you've hit either the "moulder says no" wall or the "freelance CAD quote was wild" wall, this is the page for you. We run rapid prototyping and product development from our Bournemouth, UK workshop — designed and printed under one roof, with a full range of engineering materials and a direct path into small-batch production when the design is signed off.
State · pre-CAD
You have a sketch, a photo, or a sentence that starts "I wish there was a thing that..."
State · first CAD
You have a rough CAD file but you're unsure if it'll print, release, or perform.
State · broken prototype
You had something that nearly worked, but the wrong supplier ruined the design or it failed in use.
State · moulder rejected
An injection moulder told you "this geometry isn't possible" and you want a second opinion from someone who makes the impossible geometry routinely.
01
We design with you, not for you
Every revision goes back through an engineer, not an algorithm. You stay in the design decisions · we just do the heavy lifting between calls.
02
Iterate without the bill climbing
Small changes. Fast prints. £0 tooling cost means a V3 costs about the same as a V1. You don't pay to be wrong in the early rounds · that's how good products get built.
03
A clean path from prototype to production
When the design is right, we transition you to small-batch or print-and-fulfil without handing you off. Same files. Same engineers. Same QC. Zero relearning.
- 1
Send what you've got
Sketch, photo, CAD file, broken part, a napkin drawing · genuinely anything. We've worked from all of them.
Lowers · "I'm not ready enough to contact them" - 2
Discovery call
15 minutes with our team. We scope the work, clarify the use case, flag what's printable and what isn't.
Lowers · "what if my idea is stupid" - 3
CAD + first print
We work the CAD with you and print V1 as a test sample so you can hold it · that first print is on us when you commit to the build.
Lowers · "I'll spend money before seeing anything" - 4
Iterate until it works
Revisions are part of the scope. We don't stop printing until you approve. Most projects settle in V2 or V3.
Lowers · "endless billable tweaks" - 5
Handoff or scale up
Once the design is right, we either hand you the production files (yours to keep) or roll straight into small-batch or print-and-fulfil. No re-quoting, no relearning.
Lowers · "what happens when I need real quantities"
"What if my idea doesn't actually work?"
Then the discovery call is where we find out · before any money changes hands. Sometimes we'll tell you the shape needs a rethink; sometimes we'll suggest a material you hadn't considered; sometimes we'll save you 6 weeks by pointing out one feature that can't be 3D-printed reliably at scale. Honest answers save more projects than clever ones.
"How many iterations before I'm billed?"
Revisions are part of the scope we agree in step 2. We don't itemise you into the ground · V2, V3, V4 within the original scope are included. If the design direction changes mid-project (you want a different product, not a different version), we rescope openly before any new hours go on.
"I'm pre-launch and paranoid about IP leaks."
NDAs signed before the file lands. Your drawings, CAD, and physical prototypes never leave 3DPE · no outsourcing, no overseas subcontracting. Every part printed on our UK floor by our team. We've worked with pre-launch DTC brands for 5+ years without a leak.
"I've been quoted way more by a freelance CAD engineer."
A freelance CAD engineer charges for design time in isolation. We charge for design in the context of actually printing the thing · which usually means fewer iterations because we can test geometry, tolerance, and material choice as we design. Plus the V1 sample print is on us when you commit to the build · most freelance CAD engineers can't offer that because they don't print.
"What if the design needs expertise I don't have?"
That's what we're for. Between our team we've designed for automotive, events, consumer goods, obsolete industrial parts, and one genuine prop for a Vogue-cover runway show. If we can't help, we say so on the discovery call · cheaper than finding out three weeks in.
"Can you take this from prototype to real production?"
Yes · same files, same engineers, same floor. Once the design is approved, transition to small-batch (10-1,000+ units) or print-and-fulfil (we print, pack, drop-ship to your customers) without a re-quote cycle. See the fulfilment teaser below.
01
Revisions inside scope, no surprise bills
V2 or V3 revisions within the original scope are included. We rescope openly if the direction genuinely changes · not every tweak.
02
Free V1 sample on commit
Bring an idea, we work the design with you. The first V1 sample print is on us when you're going through with the build.
03
24-hour quote or 10% off
Send a brief, you'll have a quote inside 24 hours UK business time. Late quote? Your next job is 10% off.
SKETCH · PHOTO · BROKEN PART · ANY OF IT
Got an idea knocking around? Send what you've got. We'll take it from there.
A rough sketch, a phone photo, a broken clip you need a replacement for. No CAD required. You'll hear from our team within 24 hours.
FAQ · Common questions
Product development — frequently asked questions
The questions product developers ask us most. If yours isn't here, email hello@3dprintingexpress.co.uk · we reply same-day during UK business hours.
3D printing cost in the UK is project-based, not per-hour. Design hours are quoted separately from print costs · driven by scope, iterations expected, and complexity. Print costs are driven by unit count, material, and post-processing. The V1 sample print is on us when you commit to the build · so you only pay design hours and the production run, never the test print. No published £/hour rate · everything is quoted against the actual brief, agreed in writing first.
Send a sketch, a phone photo, a measurement, or the broken part itself. We've worked from all of them. We'll work the CAD with you from whatever you have. No CAD experience needed on your side. You stay in the design decisions, we do the heavy lifting between calls · and the V1 sample print is on us when you commit to the build.
V1 typically lands in 5-10 working days from brief. Full product development settles in 4-8 weeks for most projects. Most projects iterate through V2 or V3. Sometimes V1 prints fine and we're straight into production · sometimes we end up at V4 because a real-world test surfaces something the CAD couldn't predict. Revisions inside the original scope are included · we don't itemise every tweak. Where the design direction genuinely changes mid-project, we rescope openly before any new hours go on.
Yes · routinely. Send a photo with a ruler in the shot, a measurement or two, and the broken part itself if you have it. We build the CAD from those inputs in Fusion 360 or SolidWorks-compatible parametric CAD, then print the V1 sample on us when the build follows. Photos alone get us 80% of the way; the broken part in hand gets us to 100%.
STL, STEP, OBJ, 3MF, IGES · anything industry-standard. STL vs STEP: we prefer STEP for production work because it carries parametric geometry — we can adjust wall thickness or tolerances without remeshing. STL is fine for one-off prints where you just need the surface. We also accept Fusion 360, SolidWorks-compatible, and Inventor native files. No file? Send a sketch, a hand-drawn dimension, or a phone photo · we'll work from any of them.
Yes · same files, same engineers, same UK floor. Once the design is signed off we either roll straight into small-batch (10 to 1,000+ units) or full print-and-fulfil (we print, sand, assemble, pack, drop-ship to your end customers). No re-quoting, no relearning, no handing you off to a different team. The transition is genuinely a continuation of the same project.