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RokOnNexus
Services

Everything between the idea and the issued drawing

End-to-end mechanical design engineering and CAD outsourcing for startups, manufacturers, product developers and engineering teams in India, the USA, UK, Europe and Australia. Each service ends in files, not opinions: a model you can open, a drawing you can print, and a format your supplier already works with.

Concept and product development

Getting from an idea to a design that will work.

Concept and product development

Concept development and product design engineering — from idea to a practical, manufacturable concept.

  • Initial concepts developed from a brief or a sketch
  • Design alternatives explored and compared
  • Solutions weighed on function, performance and manufacturability
  • A clear direction before detailed modelling begins

Mechanical product design

Mechanical product design and product development engineering — complete products designed to work and to be built.

  • Functionality and reliability worked through in the design
  • Manufacturability considered at every decision
  • Cost optimisation without losing performance
  • From a single component to a full product

Machine and equipment design

Machine design services, special purpose machine (SPM) design and jig and fixture design built around your process.

  • Machines, mechanisms, welding, machining, inspection and assembly fixtures, jigs and tooling
  • Designed for specific applications and production rates
  • Guarding, access and maintenance considered
  • Equipment tailored to the line it joins

Assembly design

Assemblies where the parts actually fit together.

  • Correct component relationships and constraints
  • Fit, clearance and interference checked
  • Assembly sequence considered from the start
  • Exploded views and assembly drawings

Modelling, drawings and documentation

The files and paperwork a shop builds from.

3D CAD modelling

3D CAD modelling services — precise parametric solid models and assemblies in SolidWorks, Creo, CATIA V5, NX, Inventor, Fusion 360 or ZW3D.

  • Components, assemblies, machinery and products
  • Parametric models that can be revised later
  • Built to be handed over and edited by your team
  • Delivered as STEP, IGES, native CAD and STL, plus 2D to 3D CAD conversion of legacy drawings

2D manufacturing drawings

Mechanical drafting and manufacturing drawing services — production drawings with nothing left to interpretation.

  • Full dimensions, tolerances and material specifications
  • GD&T drawings to ASME Y14.5 / ISO 1101 and surface finish callouts
  • Fabrication, shop, assembly and detailed engineering drawings the shop actually needs
  • Issued as PDF plus DWG or DXF

Sheet metal design

Sheet metal design services — formed parts that come out the size you intended.

  • Bends developed with the correct allowance
  • Flat patterns ready for nesting
  • Fabrication details for laser, punch and press brake
  • Manufacturing-ready drawings

Multilingual engineering drawings

Drawings and documentation in the language your supplier reads.

  • English, French, German, Chinese, Norwegian and Gulf Arabic
  • Other languages on request
  • Clear communication with overseas contractors and project teams
  • The same drawing standard, whichever language it is issued in

Engineering documentation

Engineering documentation services — the paperwork that turns a design into a repeatable build.

  • Bills of materials (BOM creation)
  • Assembly and fabrication drawings
  • Specifications and design documentation
  • Professional technical documents ready to issue

Improvement and engineering support

Making existing designs better, and covering your team when it is stretched.

Design modification and optimisation

Design for manufacturing (DFM) and optimisation — a second pass over an existing design to make it better and cheaper.

  • Performance improved and design issues eliminated
  • Manufacturing cost reduced
  • Assembly simplified
  • Strength improved where it matters

Reverse engineering

Reverse engineering CAD services — a physical sample, 3D scan or old drawing turned into a clean CAD model.

  • Existing components and samples measured and modelled
  • PDF, DWG and legacy 2D drawings converted to 3D CAD; scan to CAD
  • Accurate, detailed engineering drawings produced
  • Obsolete part replacement

Prototype and manufacturing support

Help across the gap between a finished design and a made part.

  • Manufacturing challenges worked through with your shop
  • Design changes handled as they arise
  • Prototyping requirements supported
  • Engineering revisions tracked and issued

Freelance and contract engineering

Mechanical design outsourcing and contract engineering — an extra engineering resource when your team is at capacity.

  • Short-term assignments
  • Ongoing project support
  • Overflow engineering work
  • Remote mechanical design engineer or CAD designer on a flexible arrangement
From sketch to solution

Concept → design → 3D CAD → drawings → prototype → production

Move through every stage with precision, efficiency and engineering confidence — or join at the stage where you need help.

  1. Concept

    The idea explored as an engineering problem, with alternatives compared.

  2. Design

    A direction chosen on function, performance and manufacturability.

  3. 3D CAD

    Precise parametric models of components and assemblies.

  4. Engineering drawings

    Dimensions, tolerances, GD&T, materials and bills of materials.

  5. Prototype

    Print-ready files and support through the first build.

  6. Production

    Revisions, manufacturing support and released documentation.

Questions

The things clients ask first

If your question isn't here, send it over — the answer usually takes one line.

What do you need from me to start?

Whatever exists: a sketch, a photo of the part next to a tape measure, an old print, or a written brief. If key dimensions are missing, we list the ones we need before quoting.

Which file formats do you deliver?

STEP and IGES for models, DXF and DWG for cutting and drafting, PDF for issued drawings, STL for printing. Native SolidWorks, Creo, CATIA V5, NX, Inventor, Fusion 360 or ZW3D files are available on request.

Which CAD software do you work in?

SolidWorks, AutoCAD, Fusion 360, Creo, CATIA V5, UG NX, Autodesk Inventor and ZW3D. We are CAD-software independent: work is done in the platform your team already uses, and CAD file conversion between platforms is included when needed.

Do you work with clients outside India?

Yes. RokOn Nexus is a mechanical design outsourcing partner based in Pune, India, working remotely with clients in the USA, UK, Canada, Australia, Germany and the rest of Europe. Files are exchanged securely, reviews are held over video call, and drawings can be issued in your supplier's language.

Can I get drawings in a language other than English?

Yes. Technical drawings and engineering documentation can be issued in English, French, German, Chinese, Norwegian and Gulf Arabic, with other languages on request — useful when the shop building the part is not in the same country as the client.

Do you work to drawing standards?

Yes. Drawings are produced to ASME Y14.5 or ISO 1101 for GD&T, with ISO 2768 general tolerances unless your own drawing standard applies.

Can you take on just part of a project?

Yes. Support ranges from a single component to complete product development, including freelance and contract cover when your own team is at capacity.

How are revisions handled?

Two review rounds are included in every quote. Each issued drawing carries a revision block, so the shop always knows which sheet is current.

Who owns the design?

You do. All models, drawings and source files are handed over on final payment, and we sign an NDA before receiving your files if you need one.

Next step

Not sure which service you need?

Describe the part and the problem. We'll tell you what the deliverable should be and what it costs.

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