From working prototype to first production run: next steps for a hardware product
If your hardware prototype works and you want the first few hundred units manufactured, the next steps, in order, are: set your targets, lock down what goes inside, redesign the product for production and test a few units, get quotes at your quantities and decide, make the tooling and sign off a golden sample, run a small pilot batch, then produce and ship.
Each step answers a question the next one depends on. A factory can't quote a part it can't make. Tooling can't start while the design is still changing. A pilot run tests the production line, not the design. A common source of trouble is treating an early quote, made before the design was ready for production, as the real price. Early estimates are useful for planning; quotes firm enough to decide on come after the redesign.
Tooling and certification are usually the longest steps, so plan the test fixtures, firmware flashing and packaging alongside them, not after.
What are the steps from prototype to production?
| Step | What you decide | What you have at the end | A common mistake |
|---|---|---|---|
| 1. Set your targets | How many, what each unit must cost, where you'll sell | A target quantity, unit cost and list of markets | Waiting for exact numbers before starting |
| 2. Lock down what goes inside | The board or module, battery, display and connectors | A bill of materials (BOM) with real part numbers | Quoting a product built around a dev board you won't ship |
| 3. Redesign for production (DFM) and test | Which process each part is designed for | CAD and drawings a factory can quote, and a few tested units | Sending a 3D-printing design to a molding factory |
| 4. Get quotes, then decide | Go or stop, and how many | Quotes at two or three quantities, compared as landed cost | Comparing one supplier's unit price with another's landed cost |
| 5. Tooling and golden sample | Start tooling; sign off the golden sample | Parts from production tooling, passed certification tests and a reference unit | Expecting the first shots from a new mold to be final |
| 6. Pilot run | Approve production | A small batch built on the real line | Skipping it and finding line problems in the full run |
| 7. Production and shipping | When to reorder | Inspected lots at your warehouse | Not agreeing on what counts as a defect before the run starts |
1. Set your targets
Before you contact a factory or a contract manufacturer (CM), write down three things: how many units for the first run, what each unit must cost (or what it will sell for), and where you will sell it. If you haven't yet, check that people will buy it. Pre-orders, a waitlist or a crowdfunding campaign give you a quantity and a price to plan around.
A mold costs a lot up front and little per part, so at low volumes the up-front cost can outweigh the savings. That is why quantity decides the process. The selling price sets how much room there is for unit cost. The markets decide which certifications you need: FCC for the US, CE for Europe, and a safety listing such as UL if your product type or your retailers require it. Ranges are fine at this stage. You need them to choose between options, not to sign a contract.
2. Lock down what goes inside
A production quote is only as good as the bill of materials (BOM) behind it. Dev boards are rarely what ships. Decide whether your board is built around a ready-made module or carries the chips directly. If the product has a radio, a module that already holds FCC approval can save much of the certification work.
Give every part a real manufacturer part number. Choose the exact battery, display and connectors, because they set the size and shape of the enclosure. For a lithium battery, pick a pack, not just a cell, that already has its transport test report (UN 38.3) and safety reports such as IEC 62133; a tested cell doesn't cover a pack built from it. Carriers won't ship lithium batteries without the transport test, and retailers often ask for the safety report.
Also decide how firmware gets onto each unit on the line. Programming and testing need a fixture, and the fixture needs to be planned with the board.
3. Redesign each part for the process that will make it (DFM)
Design for manufacturing (DFM) means reworking each part so the process that will make it in volume can make it reliably, at your target cost.
A 3D-printed case is designed for a printer. An injection-molded case needs draft angles so it releases from the mold, even wall thickness so it doesn't show sink marks or warp, and features the mold can actually form. Sheet metal needs bends a press brake can make. Machined parts need tool access.
The board needs to be laid out for assembly and test, with test points the fixture can reach. And the whole product has to go together on a line: what snaps or screws to what, in which order, and how each finished unit gets checked.
Build and test before tooling. Before any tooling is cut, build a few units of the redesigned product with your own boards and printed or machined parts, and test them: function, fit, drops, charging and emissions. A first custom board often needs a revision. Tooling locks the design in, so this is the last cheap chance to change it.
What you have at the end is CAD and drawings for the processes that will make the product, and a few units that show the design works. That is what a factory can quote with confidence.
4. Get quotes at your quantities, then decide
Ask for quotes at two or three quantities, not one. Ask for setup costs (molds, fixtures) separately from unit prices. Factories usually quote at their door (ex-works) or at the port (FOB), so ask for the delivery terms, then work out the landed cost with your freight forwarder or customs broker: the cost delivered to your address, including freight, duties and tariffs. Then compare quotes on the same basis: same quantities, same scope, same delivery terms. Before you pay for tooling, confirm in writing who owns the molds and fixtures and where they are kept.
Now decide: go or stop, and how many. If the factory's minimum order quantity (MOQ) is higher than you need, or a steel mold doesn't pay off at your volume, a bridge process such as urethane casting, machining or 3D printing can make the first units. Aluminum molds, often called bridge tooling, sit in between, and at a few hundred units an aluminum mold is often the production tool itself. If you later change process or material, check that your certifications still hold.
5. Make the tooling and sign off a golden sample
When you start tooling, the factory does its own manufacturability review and firms up the tooling quote. The first parts from a new mold (often called T1) usually need some adjustment, so plan for more than one round. Each round should come back with photos and measurements.
Design the box, inserts, labels and manual alongside the tooling. Labels carry the regulatory marks and the country of origin, and the pilot run needs all of it.
Certification. Almost every electronic product with digital circuits sold in the US has to meet FCC emission limits, not only products with a radio. Formal FCC, UL or CE testing needs units built the way production units will be, so it usually runs once you have parts from production tooling. A pre-compliance scan on your first own boards, back in step 3, can catch problems while changes are still cheap.
The step ends when the certification tests pass and you sign off a golden sample: dimensions, fit, function, color and texture. A failed test can mean changes to the board or the shielding, so sign off after the tests, not before. You and the factory each keep a golden sample as the reference for what passes. If you chose a bridge process in step 4, this step is shorter: you approve first parts from that process instead of mold trials.
6. Run a small pilot batch
Before the full run, build a small batch on the real line, with the real parts, fixtures, tests and packaging. The pilot tests the process: assembly steps, test fixtures, packing and yield. Fix what it finds, then approve production.
7. Produce, inspect, ship
Production runs in lots. Each lot is inspected against the golden sample and the pass/fail rules you agreed before production, then packed and sent to your warehouse or fulfillment partner. Keep the inspection records. They are what you check when a customer reports a problem, and what you build on when you reorder.
Do you need EVT, DVT and PVT for a few hundred units?
Usually not as three separate formal builds, but you need what each one checks. EVT, DVT and PVT are the build stages larger companies use. EVT (engineering validation test) is the build and test at the end of step 3. DVT (design validation test) repeats those checks with parts from production tooling in step 5, and is when certification testing usually happens. PVT (production validation test) is the pilot run in step 6. At a few hundred units these stages are often compressed or combined, but the questions each one answers stay the same.
Example: a working prototype to 500 units
This is an illustration, not a customer project.
Say you have a handheld Bluetooth sensor that works: a 3D-printed case, a dev board with the sensor and a rechargeable lithium battery, and a waitlist. You want 500 units.
- Targets. 500 units, a price you have tested with your waitlist, US first, so FCC.
- Inside. You put a Bluetooth module that already holds FCC approval on your own board, and pick a battery pack that already has its UN 38.3 transport test and safety reports.
- Redesign and test. The printed case gets draft, even walls and snap fits a mold can form, and the board gets test points. A few units built with printed parts go through drop, charging and emissions checks.
- Quotes. Landed-cost quotes at 500 and 1,000 units show whether a steel mold, an aluminum mold or urethane casting makes sense for the first 500.
- Tooling and golden sample. The FCC test runs on units built from production parts. Once it passes, you sign off the golden sample, with the box and labels ready.
- Pilot. A small batch goes through assembly, firmware flashing, test and packing on the real line.
- Production. The 500 units ship in inspected lots to your warehouse.
Where we come in
This is the work Anamor takes on. We take US hardware teams with a working prototype into their first production run: we redesign the product for production, line up partner factories and suppliers in the US and overseas, price it at your quantities, and run the build through to shipping. We arrange certification with accredited labs, and your firmware stays yours.
Send what you have: photos of the prototype, CAD if you have it, the parts list, and how many you plan to make. The first look is free. Within two business days, a real person on our team will reply with a first look at your production run and a few times to talk.
Frequently asked questions
What comes after a working prototype?
Set your targets (quantity, unit cost and markets), lock down the parts inside, redesign each part for the process that will make it, and build and test a few units. Then get quotes at your quantities, make the tooling, sign off a golden sample, run a small pilot batch and produce.
When should I ask factories for quotes?
Early estimates are useful for planning at any point. Quotes firm enough to decide on come after the design has been reworked for production (DFM), because a factory can only price a part it can make.
Do I need EVT, DVT and PVT for a few hundred units?
Usually not as three separate formal builds, but you need what each one checks: the redesigned product built and tested before tooling, the same checks with parts from production tooling, and the production line itself in a pilot run.
When does certification testing happen?
Formal FCC, UL or CE testing needs units built the way production units will be, so it usually runs once you have parts from production tooling. A pre-compliance scan on your first own boards can catch problems while changes are still cheap.