Confidentiality & Customer Trust

Confidential Prototype Manufacturing With NDA Protection

Protecting confidential CAD files, unreleased product information and physical prototypes throughout the prototype manufacturing process — from the first project discussion through manufacturing, finishing, assembly and delivery.

01 NDA Before Detailed Files
02 Need-to-Know Project Access
03 Controlled Workshop Access
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You do not need to send sensitive CAD files first. Start with general project information. If confidentiality is required, an NDA can be addressed before detailed technical files are shared.

Hemtom confidential prototype manufacturing facility
Confidential Prototype Projects Protecting Sensitive Project Information Beyond the NDA
Project Access Information Shared With Relevant Project Personnel

Project information is used by the personnel involved in communication, quotation, project review and manufacturing.

Our Confidentiality Principle

Confidentiality is more than signing an NDA. It also concerns how project information is shared with relevant personnel, how physical prototypes are handled during manufacturing, and how access to prototype manufacturing areas is managed.

Why Confidentiality Matters

Prototype Projects Often Begin Before the Product Is Public

Prototype manufacturing often takes place while a product is still being developed, evaluated or prepared for release. At this stage, the information shared with a prototype manufacturer can reveal far more than the specifications of an ordinary production part.

01 Before Release

The Product May Not Yet Be Public

A prototype may represent a product that has not yet been announced, launched or shown to the market. Its appearance, structure and product concept may therefore still be commercially sensitive.

Unreleased Product Information
02 During Development

Engineering Information Is Still Evolving

During development, customers may need to share information about geometry, internal structures, assembly relationships, components, materials or appearance requirements so that a physical prototype can be manufactured correctly.

Development Information
03 Physical Prototyping

Confidential Designs Become Physical Objects

Once manufacturing begins, confidential information is no longer represented only by digital files. Prototype parts, finished surfaces, internal structures and assembled models can also reveal details of an unreleased product.

Physical Prototype Information
More Than an NDA Confidentiality Needs to Continue Beyond the Signature

An NDA establishes an important confidentiality framework, but prototype projects also involve project files, relevant personnel, manufacturing activities, physical prototypes and access to production areas. For this reason, confidentiality needs to be considered throughout the prototype manufacturing process.

Before Detailed Files Are Shared

Customers do not need to begin by sending sensitive CAD data. If confidentiality is required, the next step can be to arrange an NDA before detailed drawings, CAD files and other sensitive project information are provided.

NDA Before Detailed Files

An NDA Can Be Arranged Before You Share Sensitive CAD Files

You do not need to send confidential CAD models, detailed drawings or unreleased product information simply to begin a conversation with Hemtom. Start with general project information and, when confidentiality is required, address the NDA before detailed technical files are shared.

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Start With What You Are Comfortable Sharing

General information about the prototype, quantity, material or manufacturing requirements can be used to begin the conversation. Sensitive product details can follow after the appropriate confidentiality arrangement is in place.

Path 01

Project Without an NDA Requirement

If your project does not require an NDA, detailed project information can be provided directly for review.

01
Share Project Requirements

Tell us what you need to manufacture and the basic project requirements.

02
Send CAD & Drawings

Provide the technical files required for manufacturing review.

03
Project Review

Materials, processes, finishing, quantity and other relevant requirements can be reviewed.

04
Quote & Manufacturing Scope

The proposed prototype manufacturing scope and quotation can then be prepared.

Path 02 · Confidential Project

Project Requiring an NDA

When the project contains sensitive or unreleased product information, confidentiality can be addressed before detailed technical files are provided.

01
Share General Project Information

Begin without disclosing the sensitive technical details you want protected.

02
Arrange the NDA

Address confidentiality before sensitive CAD files, drawings and detailed project information are shared.

03
Share Detailed CAD & Project Files

Once the confidentiality arrangement is in place, provide the technical information required for project review.

04
Review & Quote

Hemtom can then review the manufacturing requirements and prepare the appropriate project scope and quotation.

NDA Options Use the NDA Route That Fits Your Company
01 Hemtom NDA

If you need a confidentiality agreement before sharing detailed project information, ask Hemtom about arranging an NDA.

02 Your Company's NDA

If your company uses its own NDA, you can send the agreement to Hemtom for review before sensitive project files are provided.

Before the NDA No Detailed CAD Is Needed to Start the Conversation

You can begin with non-sensitive information such as the general type of prototype, approximate quantity, material category, manufacturing needs and whether an NDA is required. Detailed geometry, proprietary structures and other confidential information can be provided later.

After Files Are Shared

The next confidentiality question is not only what information you send, but also who needs access to that information to complete your project. Hemtom shares project information with relevant personnel involved in communication, quotation, project review and manufacturing.

CAD Files & Project Information

Your Project Information Is Shared With the People Who Need It to Do the Work

Manufacturing a prototype requires different people to perform different parts of the project. Project information is therefore shared with relevant personnel according to their role in communication, quotation, project review and manufacturing.

Project Information

Information You May Need to Share

The exact information depends on the prototype and the work required.

CAD Models
Engineering Drawings
Reference Images
Assembly Information
CMF & Appearance Requirements
Component Information
Relevant Project Personnel

Access Based on Project Responsibility

Different stages of the project require different personnel to understand the information necessary for their work.

01

Project Communication

Personnel responsible for customer communication may need project information to understand requirements, revisions, questions and customer instructions.

02

Quotation & Project Review

Relevant personnel may review the information required to evaluate materials, processes, quantity, finishing and the manufacturing scope for quotation.

03

Production Engineering

Engineers involved in manufacturing may need the relevant technical information to produce, fit, finish or assemble the prototype according to project requirements.

Project Access Principle Need-to-Know Project Access

Customer CAD files, drawings and project information are used by relevant personnel involved in completing the project. This can include the people responsible for customer communication, quotation and project review, as well as the engineers responsible for manufacturing.

From Digital to Physical

Protecting project information is only one part of prototype confidentiality. Once manufacturing begins, confidential CAD data becomes physical parts, surfaces, internal structures and assembled prototypes. Confidentiality therefore needs to continue into the manufacturing stage.

Confidentiality During Manufacturing

Confidentiality Continues From CAD to the Physical Prototype

Once a project enters manufacturing, confidential information is no longer represented only by CAD files and drawings. Geometry, internal structures, surface details and assembly relationships begin to exist as real prototype parts and physical models.

Digital → Physical The Project Changes Form

A confidential CAD model may become machined parts, hand-finished surfaces, painted components, assembled models and inspected physical prototypes. For prototype manufacturing, confidentiality therefore needs to be considered beyond the digital file itself.

Hemtom CNC operators working in the CNC machining workshop Hemtom CNC Workshop
01 Manufacturing

CAD Becomes a Physical Part

Manufacturing is the point where digital product geometry begins to become a real object. The engineers involved in production use the relevant technical information required to manufacture the prototype according to the project requirements.

Hemtom technician manually removing burrs from a prototype part
02

Manual Part Finishing

Prototype parts may require hands-on work such as deburring, fitting and surface preparation after machining. At this stage, the physical part itself can already reveal details of the customer's product design.

Hemtom technician manually spray painting a prototype
03

Surface Finishing & Painting

Appearance prototypes may move through manual surface preparation and painting processes. Color, texture and exterior appearance can also form part of a customer's unreleased product information.

Hemtom prototype finishing team working on prototype projects
04

Hands-On Prototype Work

Prototype manufacturing can involve skilled manual work in addition to machine processing. Relevant project personnel work with the physical parts as required by the manufacturing and finishing process.

Hemtom technician inspecting a prototype part with a caliper
05

Prototype Inspection

Physical parts are checked during the prototype process. At this stage, dimensions, geometry and finished components exist as tangible representations of the customer's design.

Prototype Manufacturing Journey One Confidential Project — Different Physical Stages
CAD &
Drawings
Manufacturing
Manual Finishing
& Painting
Fitting &
Assembly
Physical
Prototype
Physical Confidentiality A Prototype Can Reveal the Product Without Showing the CAD File

A finished appearance model, structural prototype or assembled functional prototype can reveal product geometry, exterior design, internal relationships, component positions and CMF decisions. This is why prototype confidentiality needs to extend into the physical manufacturing environment rather than focusing only on digital files.

The Next Question

Once confidential projects exist inside a real manufacturing environment, another question becomes important: how is access to prototype manufacturing areas handled? The next section explains Hemtom's workshop entry and visitor process.

Workshop Access & Security

Controlled Access to Confidential Prototype Workshops

Protecting a confidential prototype project also means controlling who can enter the areas where unreleased physical prototypes are manufactured and handled. Hemtom separates confidential production areas from general customer visit and project review activities.

Core Access Rule Confidential Workshop Access Is Restricted

The confidential production workshop is not a general-access area. Only personnel responsible for production work on the relevant projects are permitted to enter. Other personnel — and visiting customers — do not enter the confidential production workshop.

Before Production Personnel Enter Physical Entry Controls Begin Before the Confidential Workshop
Storage area for personal belongings before entering Hemtom confidential prototype workshop Personal Belongings Storage
01

Store Personal Belongings & Devices

Personal belongings and devices are stored before relevant production personnel proceed toward the confidential workshop area.

Security personnel checking an employee before entry to Hemtom confidential prototype workshop Security Check Before Entry
02

Check for Carried Devices

Before entering the confidential workshop, security personnel check employees for devices being carried into the production area.

03 Production Area Access

Only Relevant Production Personnel Enter the Confidential Workshop

After the entry procedure, workshop access is limited to personnel whose production responsibilities require them to work on the relevant projects. Personnel who are not involved in the production work are not permitted to enter the confidential workshop.

Permitted Access Relevant Project Production Personnel

Personnel whose manufacturing responsibilities require access to the confidential production area.

Restricted Access Unrelated Personnel & Visiting Customers

The confidential workshop is not opened as a general visitor or customer project-review area.

Important Distinction Customer Visit ≠ Confidential Workshop Access

Visiting Customers Do Not Enter the Confidential Workshop — Even to Review Their Own Project

The confidential workshop may contain prototype projects belonging to multiple customers at the same time. For this reason, a visiting customer is not taken into the confidential production workshop simply to inspect their own prototype. Instead, Hemtom can bring that customer's project to a designated area on the third floor for project viewing, discussion and review.

01 Customer Visits
Hemtom
02 Customer's Own Project
Is Prepared for Review
03 Review the Project in the
Designated Third-Floor Area
Camera monitoring inside Hemtom confidential prototype workshop Confidential Workshop
04 Inside the Workshop

Camera Monitoring in the Confidential Workshop

Camera monitoring is used within the confidential workshop as another part of the physical workshop management environment. Together with controlled entry procedures, it supports the management of areas where confidential physical prototypes are manufactured and handled.

Production Personnel Entry Process Access to the Confidential Workshop Is a Controlled Process
01 Store Personal
Belongings & Devices
02 Security
Check
03 Confirm Production
Access Requirement
04 Enter Confidential
Production Workshop
What This Means for Your Project Your Factory Visit Does Not Mean Other Customers Can Enter Your Production Area

Hemtom separates confidential production access from customer project review. When you visit, your own project can be brought to a designated area for review without requiring access to the confidential workshop where other customers' projects may be in production. The same principle helps prevent other visiting customers from entering the confidential production area while projects are being manufactured there.

Customer Visits & Confidentiality

Customers Can Visit Hemtom Without Entering Confidential Production Areas

Customers may visit Hemtom to meet the team, discuss projects and understand our prototype manufacturing capabilities. A customer visit, however, does not provide unrestricted access to confidential production areas.

Customer Visit Principle Visit the Company — Not Other Customers' Projects

Hemtom may be manufacturing confidential prototypes for multiple customers at the same time. Customer meetings, capability reviews and project discussions can therefore take place without opening the confidential production workshop to visiting customers.

Customer team discussing a prototype project during a visit to Hemtom Project Discussion
01

Face-to-Face Project Discussion

Visiting customers can sit down with the Hemtom team to discuss project requirements, manufacturing questions and prototype development details.

Customer team reviewing prototype samples in the Hemtom sample room Sample Room Review
02

Review Prototype Samples & Workmanship

Customers can review Hemtom's prototype samples and examine manufacturing and finishing details to better understand our prototype capabilities.

Visiting customer team with Hemtom reception personnel at the company Customer Visit
03

Meet the Hemtom Team

Factory visits give customers an opportunity to meet Hemtom personnel in person and build a clearer understanding of the company behind their prototype work.

During a Customer Visit

Verify Capability Without Opening Confidential Production Areas

01 Discuss the Project

Meet with Hemtom personnel to discuss project requirements, questions and prototype expectations.

02 Review Hemtom Samples

Examine prototype samples and workmanship to understand manufacturing and surface-finishing capabilities.

03 Review Your Own Project

When project review is required, the customer's own prototype can be brought to the designated third-floor area for viewing and discussion.

Important Even Your Own Project Does Not Require Workshop Entry

If a visiting customer needs to inspect or discuss their own prototype, Hemtom can bring that customer's project out of the confidential production workshop and into the designated third-floor review area. This allows the customer to review their project without entering an area where prototypes belonging to other customers may also be in production.

Customer Project Review Your Project Comes to the Review Area — You Do Not Need to Enter the Confidential Workshop
01 Customer Visits
Hemtom
02 Customer's Own Prototype
Is Prepared for Review
03 Review & Discuss the Project in the
Designated Third-Floor Area
The Same Principle Applies to Every Customer Your Visit Should Not Expose Someone Else's Project — or Yours to Someone Else

The separation between customer visits and confidential production areas is designed around a simple principle: visiting Hemtom should not require access to another customer's confidential prototype work. Customers can communicate with the team, review Hemtom's prototype capabilities and inspect their own project in the designated review area while confidential production remains separate.

One Principle Throughout the Project

Confidentiality Does Not Stop After the NDA Is Signed

An NDA establishes an important confidentiality framework, but a prototype project continues beyond the document itself. Project information becomes manufacturing information, manufacturing information becomes physical parts, and those parts eventually become a prototype that can reveal the product itself.

Hemtom Confidentiality Principle Protect the Project as It Changes Form

During prototype development, confidential information can exist as CAD files, engineering drawings, manufacturing information, unfinished parts, finished surfaces and assembled physical prototypes. The form changes as the project progresses, but confidentiality remains relevant throughout the process.

01 Before Manufacturing

NDA & Project Information

Confidentiality can begin before detailed technical information is shared. General project information can be discussed first, with an NDA arranged when required before sensitive project files are provided.

  • General Project Discussion
  • NDA When Required
  • CAD & Engineering Drawings
  • Need-to-Know Project Access
02 During Manufacturing

Files Become Physical Prototypes

Once production begins, confidential design information starts appearing in physical form. Prototype parts, surfaces, structures and assemblies can reveal details of an unreleased product.

  • Prototype Manufacturing
  • Manual Finishing
  • Painting & Appearance Work
  • Physical Prototype Inspection
03 Physical Access & Review

Workshop Access & Customer Visits

Confidential physical prototypes also require consideration of who can enter production areas and how visiting customers review projects without accessing other customers' confidential work.

  • Controlled Workshop Entry
  • Relevant Production Personnel Only
  • Customer Visits Kept Separate
  • Designated Project Review Area
Confidential
Project Information
Confidential
Manufacturing Activity
Confidential
Physical Prototype
The Principle Confidentiality Is a Project-Lifecycle Responsibility

The goal is not simply to sign an NDA and consider confidentiality complete. From the first sensitive project information to manufacturing, physical prototype handling and customer review, confidentiality remains part of how the project is handled.

From initial discussion to prototype manufacturing and project review, confidentiality should follow the project — not just the document.

Start a Confidential Project

Have a Confidential Prototype Project?

You do not need to send confidential CAD files just to start a conversation with Hemtom. Begin with general project information. If your project requires an NDA, confidentiality can be addressed before detailed drawings, CAD files or other sensitive technical information are shared.

Start Without Sensitive Files Tell Us About the Project First

At the initial stage, you can provide enough general information for Hemtom to understand the type of prototype support you are looking for. Detailed confidential CAD data does not need to be the first thing you send.

01 Standard Project Discussion

Ready to Discuss Your Prototype?

If an NDA is not required before technical review, you can start the project discussion and provide the information needed for Hemtom to understand your prototype requirements.

General Project
Information
Detailed CAD
& Drawings
Project Review
& Quotation
02 Confidential Project

Need an NDA Before Sharing CAD?

Start with general, non-sensitive project information and let us know that confidentiality needs to be addressed before detailed technical files are shared.

General Project
Information
Address the
NDA First
Share Detailed
Project Files
What You Can Share First General Information Is Enough to Begin the Conversation
Prototype Type
Approximate Quantity
General Material or Process Needs
Whether an NDA Is Required
Start With the Information You Are Comfortable Sharing

Tell us what you are trying to prototype and whether confidentiality needs to be addressed before detailed files are provided.

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No confidential CAD files are required to make the first contact. Start with general project information and indicate if an NDA needs to be addressed before detailed technical information is shared.

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