Outsourcing mechanical design can help manufacturers manage demanding workloads, access specialist expertise and progress projects without expanding their in-house team. However, success depends on more than producing accurate drawings. Technical requirements, manufacturing constraints and communication all need to be managed throughout the project.
For UK manufacturers and engineering teams, a structured approach helps reduce unnecessary revisions, avoid delays and maintain quality. Here are five common challenges to consider when outsourcing mechanical design and how to address them.
1. Unclear Requirements and Communication Gap
An incomplete brief can leave important technical details open to interpretation. Without clear specifications, an external design team may produce work that meets the information provided but fails to account for requirements that were never communicated.
How to address it: Agree on the project scope, technical specifications, deliverables, deadlines and approval responsibilities before work begins. Regular reviews also help identify misunderstandings before they lead to costly changes.
NOVA Design’s mechanical design process includes four review stages: Preliminary Design Review (PDR), Critical Design Review (CDR), Manufacturing Design Review (MDR) and Technical Documentation Review (TDR). These checkpoints help ensure the design meets requirements as it progresses.
2. Inconsistent Drawing Standards and Revision Control
Differences in drawing conventions, tolerances, file formats and documentation can create additional work for in-house engineering teams. Poor revision control can also leave teams working from outdated drawings or incompatible CAD files.
How to address it: Establish drawing standards, templates, file formats and revision procedures at the outset. Deliverables should integrate with your existing engineering processes, making them easier to review, update and use.
NOVA Design operates an ISO 9001:2015-certified quality management system, supporting consistent processes and controlled documentation. For projects requiring production-ready technical drawings, its 2D CAD drafting and detailing service supports the preparation of manufacturing documentation to suit project requirements.
3. Designs That Are Difficult to Manufacture
A design may meet its functional requirements but still be expensive or impractical to manufacture. Tight tolerances, unnecessary machining operations and inaccessible components can all create problems if production requirements are considered too late.
How to address it: Consider manufacturing methods, materials, tolerances, assembly and maintenance during design development. Input from production teams and suppliers can help identify practical constraints before drawings are released.
NOVA’s Manufacturing Design Review (MDR) considers manufacturing requirements before final technical documentation is completed. This is particularly relevant to jig and fixture design, where accessibility, positioning and repeatability directly affect production use.
For projects involving mechanical equipment within buildings or industrial installations, BIM modelling can also support spatial coordination where appropriate to the project scope.
4. Project Delays and Insufficient Capacity
Outsourcing is often used when internal teams lack the capacity to meet deadlines. However, limited resources, lengthy onboarding or poorly managed scope changes can create further delays.
How to address it: Choose a partner with sufficient engineering capacity and agree on realistic milestones before work starts. Clear proposals should define the scope, costs, deliverables and deadlines, while regular communication helps both teams manage changes.
NOVA Design has a team of more than 35 design engineers, supporting individual projects and longer-term engineering programmes. Its engineers can work from existing drawings, CAD models and specifications, helping businesses progress work already underway.
Agreeing how additional requirements will affect costs and timescales is equally important. This allows changes to be managed transparently rather than creating unexpected pressure later in the project.
5. Protecting Intellectual Property and Project Data
Outsourced engineering often involves sharing commercially sensitive information, including product designs, customer specifications and manufacturing details. Businesses need confidence that this information will be handled appropriately.
How to address it: Establish confidentiality agreements, data-access arrangements and intellectual property ownership before sharing technical files. Confirm whether work will be subcontracted and what security or supplier requirements apply.
NOVA Design holds Cyber Essentials Plus certification and is registered on JOSCAR, a supplier registration system used across sectors including aerospace, defence and security. These credentials can help inform supplier assessments, alongside project-specific checks and contractual agreements.
Choosing the Right Mechanical Design Partner
Outsourcing should provide additional engineering capacity without compromising control over quality, technical requirements or delivery.
Before outsourcing mechanical design, confirm that your chosen partner can:
- Work to your technical requirements and drawing standards.
- Provide structured reviews and controlled documentation.
- Consider manufacturing requirements throughout development.
- Meet agreed deadlines and accommodate changing workloads.
- Explain its approach to confidentiality, security and intellectual property.
NOVA Design supports UK businesses with engineering design and drafting, from concept development through to manufacturing documentation. Explore our outsourced engineering design services or contact the team to discuss your project.