Budget guide
What does it cost to prototype a product?
Hardware prototype cost is not one number. It is a set of stages, each answering a different question, each with its own cost drivers. This is how we break it down before a single part is built, written by the engineers who run the audit.
Why it matters
A prototype budget is a sequence, not a quote.
Founders ask for the cost of a prototype the way they would ask for the cost of a part. A prototype is a program of stages, and the total depends on how many of those stages you need and how late you find the problems. Knowing the shape of the cost lets you decide where to spend and where to stop.
The cheapest prototype answers one question.
The expensive prototype is not the one that costs the most per build. It is the one built on the wrong process for the wrong question, then rebuilt. Matching the prototype to the question you are actually asking is the single biggest lever on cost.
The stages
Five stages, and what each one costs to build
Ranges below are common industry starting points, not quotations. The real number depends on your design, your volume and your certification path, which is exactly what a review establishes.
- 01
Appearance model
EUR 1,500 to 6,000LOOKS LIKE THE PRODUCT, DOES NOTHING
A cosmetic, non functional model used to evaluate form, ergonomics, finish and brand presence. Usually 3D printed or CNC machined, finished and painted by hand. It answers the question of whether the product feels right in the hand and looks right in a photograph. Cheap to build, expensive to over build: an appearance model does not need working electronics, so do not pay for them here.
- 02
Works like prototype
EUR 4,000 to 20,000PROVES FUNCTION, IGNORES FORM
A functional proof of concept that proves the core mechanism or electronics work, often built on a development board or in a rough enclosure. It answers the engineering question: does the thing do what it is supposed to do. Looks are irrelevant at this stage, which is why it should not carry cosmetic cost. The risk here is scope creep, adding features before the core works.
- 03
Engineering prototype
EUR 8,000 to 40,000PRODUCTION INTENT, BUILT FOR THE FIRST TIME
The first build on production intent processes: real PCBs, real materials, real tooling where it matters, an enclosure close to final form. It is used for testing, certification samples, investor demos and the first honest look at manufacturability. This is where cost climbs, because every revision now touches tooling, firmware and purchased components, not just a printed part.
- 04
DFM and tooling
EUR 8,000 to 40,000+ per mouldTHE ONE TIME COST THAT DECIDES UNIT PRICE
Design for manufacturability review and injection mould tooling are the largest one time investments in a hardware program. A single cavity mould for a mid complexity part commonly sits between EUR 8,000 and 25,000; multi cavity, high precision or steel hardened tooling runs higher. Tooling is amortised across volume, so the decision belongs with your expected quantity, not with optimism.
- 05
Pilot run
EUR 5,000 to 30,000FIRST SMALL BATCH, FULL PROCESS
A small production batch, often 50 to 500 units, run through the real line to prove the process, the fixtures and the inspection plan before mass production. It surfaces the assembly and yield problems that prototyping hides. Cost per unit drops sharply from the engineering prototype, but the batch still carries setup, line time and first article inspection overhead.
What moves the number
Six factors that decide prototype cost
The stage ranges above are wide because the same stage costs very different amounts for different products. These are the variables that push a build toward the low or the high end of its range.
Part count and complexity
Every additional part is a tool, a process, an assembly step and a failure point. Halving the part count usually does more for cost than negotiating on any single component. Complexity, undercuts, internal geometry and tight interfaces all increase machining and tooling time.
Electronics and firmware
Custom PCB design, component sourcing, firmware development and EMC compliance are where budgets quietly double. Off the shelf modules save time in a works like prototype and cost yield in production. The right answer depends on volume and on how much of the electronics is core IP.
Process selection
3D printing, CNC machining, urethane casting and injection moulding each suit a different question and a different volume. Printing is cheap per part and expensive per iteration. Moulding is expensive to start and cheap to repeat. Choosing the process for your eventual volume keeps prototype work usable in production.
Material and finish
A named material grade with a datasheet is cheaper to quote and to build than an unspecified family. Cosmetic finish, texture, colour matching and secondary processes like anodising or plating each add cost and lead time. Deciding finish before tooling is cut avoids rework on steel.
Certification
CE, FCC, UKCA, RoHS and any sector specific regime each demand test reports, samples and sometimes design changes. Catching certification requirements during the audit is cheap. Catching them after a pilot run means a redesign and a retest.
Volume and where you build
The same prototype costs less in a dense supply chain, where a mould maker, a CNC shop, a finisher and an assembly line sit within reach of each other. This is the structural advantage of building through the Shenzhen ecosystem, and it is why a verified factory there changes the economics of a small hardware program.
Quick checklist
How to keep prototype cost honest
- A defined question for every prototype: looks like, works like, or engineering.
- Part count reduced before tooling, not after it.
- Electronics scope matched to volume, not to a demo deadline.
- Process chosen for production volume, with prototype work that transfers.
- Named material grades and finishes agreed before steel is cut.
- Certification regime identified, with its evidence listed up front.
- A manufacturability review before the first tooling quote.
- A budget that treats tooling as a one time investment, not a per part cost.
Common mistakes
Three patterns that inflate the budget
Building one prototype that tries to do everything.
A single, fully featured prototype sounds efficient and is not. It forces cosmetic, functional and production intent work to happen at once, so every change is expensive and every risk is entangled. Stage the question, and build the cheapest prototype that answers it.
Quoting a unit price before tooling exists.
A unit cost quoted without tooling, fixtures and yield is a guess, and founders have raised money on guesses that turned out to be half the real number. Tooling and setup are one time costs, but they are real, and they decide whether the unit price is viable at your volume.
Prototyping on a process you cannot produce on.
A 3D printed prototype tolerates geometry that moulding will not. A part that works in print can be untoolable, and the redesign then happens under deadline pressure with tooling already quoted. Design for the production process from the start, then prototype in whatever is convenient.
FAQ
What founders ask about prototype cost
What does it cost to prototype a hardware product?
A cosmetic appearance model starts around EUR 1,500 to 6,000. A works like prototype that proves function typically runs EUR 4,000 to 20,000. A fully engineering prototype, built on production intent processes and real electronics, sits between EUR 8,000 and 40,000. The number moves with part count, electronics complexity, certification and volume, which is what an audit establishes against your actual design.
Why is prototyping so expensive?
Most of the cost is not the part, it is the engineering, the tooling and the setup around it. A prototype carries one time work that production amortises across thousands of units: design revisions, custom PCB fabrication, soft tooling, fixtures and the labour of building something for the first time. Processes like 3D printing look cheap per part but hide the cost of iteration. The expensive prototype is the one built on the wrong process for the wrong question.
How do you reduce prototype cost?
Reduce it by building the right prototype for the question you are answering, not the most complete one. A looks like model does not need working electronics. A works like prototype does not need cosmetic finish. Run a manufacturability review before tooling quotes so geometry is settled once, not three times. And choose the process that matches your eventual volume, so prototype work transfers to production instead of being thrown away.
How much does a 3D printed prototype cost?
A single 3D printed part in PLA or resin typically costs EUR 50 to 400, depending on size, finish and whether it is painted or assembled. That is the per part cost, not the program cost. A full appearance model built from printed parts, sanded, primed and painted, sits in the EUR 1,500 to 6,000 range. Printing is cheap per part and expensive per iteration, because geometry that works in print is often untoolable in moulding.
How much does a custom PCB prototype cost?
A small run of bare boards, typically 5 to 10 pieces, costs EUR 100 to 500 for fabrication. Assembly with components adds EUR 300 to 2,000 depending on part count and whether placement is manual or automated. Firmware development, which is often the real cost, runs anywhere from a few days of engineering to several weeks, depending on whether you are using off the shelf modules or custom silicon. This is where electronics budgets quietly double.
What is the cost difference between a soft tool and a production mould?
A soft tool, usually aluminium, for urethane casting or low volume injection moulding, costs EUR 2,000 to 8,000 and produces 100 to 1,000 parts. A single cavity steel production mould for a mid complexity part sits between EUR 8,000 and 25,000, and multi cavity or hardened tooling runs higher. The soft tool lets you validate geometry and finish cheaply. The steel tool is where unit price is decided, so it belongs after the design is settled, not before.
How much does certification add to a prototype budget?
CE, FCC and UKCA testing for a consumer electronics product typically costs EUR 2,000 to 8,000 per regime, depending on the product class and whether you need EMC, safety or radio testing. Medical, automotive or hazardous environment certifications run higher. The hidden cost is not the test, it is the redesign when a product fails. Identifying the certification regime during the audit and designing for it from the start keeps that cost bounded.
How long does it take to prototype a product, and does timeline affect cost?
An appearance model takes one to three weeks. A works like prototype takes three to eight weeks. An engineering prototype, with real tooling and firmware, takes eight to sixteen weeks, and a pilot run adds another four to twelve. Compressed timelines increase cost because they force parallel work, overnight shipping and rush tooling, and they raise the risk of building the wrong thing faster. The audit exists partly to establish a realistic timeline before you commit to one.
How much should I budget for a full prototype program?
A typical program from appearance model through engineering prototype and pilot run sits between EUR 25,000 and 80,000 for a mid complexity consumer product, with electronics pushing it toward the higher end. Simple products with no electronics can come in under EUR 15,000. The point of staging the budget is that you decide at each gate, after the audit tells you what the next stage should cost for your specific design.
Is it cheaper to prototype in China than in Europe or the US?
The per part cost is lower in China, and the lead time is shorter, because a mould maker, a CNC shop, a finisher and an assembly line sit within reach of each other in the Shenzhen ecosystem. That density is what makes overnight iteration possible. The saving is not just on labour, it is on iteration cycles and tooling lead time. The trade off is quality control, which is why we verify every factory against a published framework before it touches a project.
A guide gives you the shape of the cost. An audit gives you the number.
The Production Readiness Audit puts an engineer on your actual files and returns a written report with the cost drivers, the required changes and a clear verdict, at a fixed price agreed before we start. If the answer is no, you get the changes that turn it into a yes.
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