Product manufacturingPrototype to pilot buildRobotics engineering

Robotics Engineering for Product Manufacturing

Turn a working prototype into a build your manufacturer can run, from test rig and DFM review to pilot build and transfer pack.

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Tell us what the product does and what is holding up the next build; no files needed yet.

A prototype that works on your bench is not yet a product a factory can build the same way every time. Nestack engineers prove the mechanism, bring up the electronics, review the enclosure and assembly against your manufacturer's rules, build test rigs, and assemble the drawings, BOM and test specification a contract manufacturer asks for. You remain the manufacturer and keep control of the product, its IP and its suppliers; we say which steps belong to your tool-maker, EMS partner or laboratory. A fixture holding your part is Manufacturing; redesigning the part is Product Manufacturing.

Explore engineering packages

Who this page is for

What are you working on?

We engineer and prove your product; we do not make it.

Discuss a project for hardware start-ups

Who decides what

Did it meet the agreed requirement? Is the build ready for this manufacturer? Which approvals are needed before sale?

Early prototypes are hand-fitted, use stand-in parts and carry unmeasured tolerances. A manufacturer needs released drawings, a costed BOM, parts its process can make, a repeatable assembly order and a test for every unit.

Engineering acceptance
Did the part, board or rig meet the agreed requirement? Technical leads on both sides.
Build release
Are design, BOM and test specification ready for this manufacturer? Your product owner with the manufacturer.
Market and compliance
Which approvals, warnings and instructions are needed before sale? You, as manufacturer, with your laboratory.
Where this page stops
A fixture holding your part is Manufacturing; redesigning the part is Product Manufacturing. Medical devices, drug products and vehicle, aircraft or defence products stay on their own sector pages.

Cell, line and factory automation around parts you already make sits on Manufacturing. Board-level production test, ESD handling and SMT support sit on Electronics; product PCB design and DFT stay here. Designing products for Consumer Goods, Home Services, Construction, Education, Energy & Utilities, Chemicals & Materials and Banking comes here, under their sector rules. Medical Devices, Pharmaceuticals (drug products and GMP work), Automotive and Aerospace & Defence keep regulated products. Connected-product apps and cloud sit with our electronics and IoT software services.

Illustrative scopes

Four pre-production scopes, each with its limit

These are illustrative scopes, not completed client engagements.

A of D
Illustrative scope

Mechanism prototype and life-test rig

Your challenge
A hinge, latch or drive works on the bench, but wear, force margin and failure modes are unknown.
Possible scope
One or two iterations in prototype materials and a rig cycling the mechanism under agreed load, with logging and fault stops.
You receive
Revised CAD and BOM, units, rig and code, cycle and force logs.
Acceptance
Agreed cycle count within stop rules; margins and failures reported against your requirement; rig repeatability checked. Boundary: prototype-material life is not production life or product safety evidence.
Discuss Your Product Build

Feasibility and build economics

Spend engineering where a late change would cost most

In a Product Build Feasibility Assessment we review the requirement, the prototype (what works, what is hand-fitted, what fails), volume and cost targets, the manufacturer's rules and expected approvals. You receive a requirements digest with gaps marked, risks ranked by the cost of finding them after tooling, the next build with exit criteria, an approvals table with owners, and our view on whether to continue, rework or pause. If a bought module or your manufacturer closes a gap more cheaply, we say so. Set the baseline as the full cost of reaching the next build another way: your own engineers, a consultancy or your manufacturer's NPI team. Late changes after tooling usually cost most. Demand comes in bursts, so price utilisation and ramp-down honestly.

01
Keep the design
Is it a build or supplier instruction, not a design flaw?
02
Buy a module
Would a pre-approved radio module or catalogue actuator remove a risk?
03
Adapt a reference design
Can an evaluation board be reused once licence and lifecycle are checked?
04
Integrate
Is the gap a connector, mounting or firmware handshake?
05
Build
Which uncertainty can only a new mechanism, board or rig resolve?
06
Manufacturer's NPI team
Will your EMS or tool-maker cover it in its quote?

Add these to the baseline

  • Prototype parts
  • Bridge tooling
  • Rigs
  • Travel
  • Laboratory fees
  • Review time
Discuss Your Product Build

Looking for connected-product apps or cloud software instead?See Electronics Industry

Engineering packages

Eight packages with outputs you can review

Pre-compliance planning, not certification. Each package records the product family and market first, because an IT product, an appliance and a machine follow different safety standards. We list approvals the product may need, such as BIS registration, radio type approval or telecom certification, and name you or your laboratory as owner of each. Our rigs give engineering evidence, not certification.

  • Feasibility and architecture

    • Requirements digest
    • Ranked risks
    • Module choices
    • Next-build plan
  • Mechanism and motion design

    • CAD
    • Force and wear calculations
    • Prototypes
    • Life-test plan
  • Enclosure and DFM/DFA

    • CAD revised to supplier rules
    • Tolerance stacks
    • Assembly sequence
  • Embedded bring-up

    • Bring-up log
    • Bench firmware
    • Power profile
    • Next-spin list
  • Test rigs

    • Rig hardware and software
    • Procedures
    • Data
    • Repeatability check
  • Pilot-build support

    • Build plan
    • Issue log
    • Corrective actions
    • Build report
  • Transfer documentation

    • Controlled drawings and BOM
    • Test specification
    • Golden sample
  • Dedicated engineers

    • Named engineers under your technical lead

Staged builds and acceptance

Match the work to the build you are in

  1. 01
  2. 02
  3. 03
  4. 04
  5. 05

01 Desk review

Requirements, risks and an approvals list; decide whether another prototype is needed at all.

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Product risk, approvals, data and IP

Keep design responsibility, approvals and IP clear

Contract terms and liability allocation need legal review before engagement; this is not legal advice.

  • Design responsibility in writing

    Indian consumer law can treat whoever designs a product before sale as one of its manufacturers. Before work starts we agree who owns the requirement, who releases each specification, who writes warnings and instructions, and what handover acceptance means. A prototype is an engineering sample, not a warranted product.

  • Powered mechanisms and stored energy

    Where your product moves under power, reviews start with hazard identification and risk estimation, then design measures before guards or warnings. Mains-powered and lithium-battery products need qualified electrical safety design and accredited testing before user exposure. Children's products and powered rigs carry their own gates.

  • When a rig or build goes wrong

    Rigs have stop and fault states and never run unattended outside agreed limits. Overheating, a swelling cell, smoke, sharp edges, unexpected motion or a loose small part halts testing until cause and fix are reviewed. CAD and firmware are version-controlled so a failing revision can be reverted. If a gate fails, you decide whether to revise, step back or stop.

  • Mark maturity on every deliverable

    Each drawing, unit and report states its maturity (looks-like, works-like, engineering validation or pilot) and the conditions tested and untested. A new cell, adaptor, radio module, antenna, enclosure material, PCB layout or process voids earlier results until reassessed.

  • Inventions, files and confidentiality

    Keep prototypes, demos and crowdfunding videos private until you decide how to protect the invention and appearance; consult a registered patent agent before disclosure or filing abroad. We offer no patent searches, freedom-to-operate opinions or infringement assurance. Project CAD, firmware, test data and inventions are assigned as contracted, after confidentiality terms are signed.

  • Connected products

    Prototypes ship without shared default passwords. Production security, updates and personal data stay with your named owner; DPDP duties are being phased in, so check which apply by your launch date. Test logs exclude personal data.

Proof and evidence

Judge results on issues found before tooling, board spins, part count and assembly and test time, not promised savings.

In Development.

  • Mechanical design
  • Embedded control
  • Actuator integration
  • Prototype testing

Further examples are published once the artefacts, results and permissions are approved. Each example states its status.

Nestack Robot Development Programme · Internal R&D

Dedicated engineers

Add product engineers to one build

  • Mechanism and enclosure

  • Embedded / firmware

  • Test and rig

  • Pilot-build engineer

  • Technical lead

  1. Tell us the build
  2. Meet available engineers
  3. Interview
  4. Onboard

After handover, agree who maintains rigs and holds spares, and for how long. Production support, field service and warranty handling are not offered.

Transfer and handover

What changes hands at transfer

We walk your engineers, and with consent the manufacturer's line staff, through the fixtures; change control and retest triggers pass to you.

Design files

5 files

  • Native and neutral CAD
  • Released drawings
  • BOM with alternates
  • Schematics
  • Firmware source

Rigs and results

3 files

  • Rig drawings and software
  • Test results
  • Known limits

Build and approvals

3 files

  • Assembly notes
  • User-information drafts
  • Approvals ownership table

Ways to work together

  1. Product Build Feasibility Assessment

    A requirements digest, ranked risks, the next build with exit criteria and a call to continue, rework or pause.

  2. Fixed-scope review

    One defined review, such as enclosure and assembly DFM/DFA against your supplier's rules, quoted after scoping.

  3. Staged prototype work

    Each stage ends with files, test results, limits and a recommendation to continue, rework or stop.

  4. Monthly engineers

    Engineers under your technical lead for one build, with deliverables and review points agreed first.

FAQ

Frequently asked questions

Showing 8 of 8 questions

  1. No. We engineer and prove the product up to and through a pilot build: feasibility, prototypes, board bring-up, DFM and DFA review with your manufacturer, test rigs and a transfer pack. Your contract manufacturer builds it, your tool-maker owns tooling, and you remain the manufacturer for regulatory purposes. A fixture holding your part is Manufacturing; redesigning the part is Product Manufacturing. Medical devices go to Medical Devices.

Contact

Tell us what the product does and where it is stuck

Say what the product does, its stage and what blocks the next build; a few sentences are enough. Drawings and firmware come later, under confidentiality terms.

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Please do not attach CAD, schematics, firmware or confidential files yet. Read our privacy notice