Engineering System
The 3Dresyns® Engineering System connects material selection, process control, dimensional calibration, failure diagnosis, comparative screening, characterization and technical implementation across photopolymer additive manufacturing and the broader 3Dresyns® material and technology portfolio.
Rather than treating additive manufacturing as isolated parameter testing, the 3Dresyns® Engineering System organizes the principal stages of material and process implementation into a structured engineering methodology.
The most developed implementation of this system is the Photopolymer Engineering System for SLA, DLP and LCD manufacturing.
The broader Engineering System applies the same high-level sequence of requirement definition, material and route selection, process control, verification, diagnosis, screening, characterization and final implementation to other 3Dresyns® material and manufacturing technologies using route-specific methods.
Navigate by: workflow stage, technical problem or engineering objective.
Engineering System versus Photopolymer Engineering System
3Dresyns® Engineering System is the overall engineering framework.
The Photopolymer Engineering System is its most developed technology-specific implementation and covers the interaction between photopolymer material behaviour, optical exposure, curing, dimensional control, failure diagnosis, printed-part screening and subsequent characterization or validation.
For inkjet, powder, ceramic, metal, indirect additive manufacturing and other advanced routes, the same overall engineering logic is applied using the relevant route-specific variables, IFU and technical documentation.
The Engineering System separates each technical stage so that selection, calibration, screening, characterization and final application validation are not treated as interchangeable activities.
Define application, geometry, load mode, dimensional priorities, operating environment, manufacturing constraints and target behaviour.
Select the appropriate material family and manufacturing route through the Structured Selection Framework (SSF) and related selection resources.
Identify and control the process variables relevant to the selected manufacturing technology.
Use structured calibration or route-specific dimensional verification to evaluate dimensional behaviour and process consistency.
Identify visible defects, instability, dimensional drift or processing failures using structured diagnostic logic.
Use SMSP or another relevant screening methodology to compare material or workflow behaviour before more extensive characterization where appropriate.
Generate quantitative or comparative technical evidence using appropriate characterization, test methods and defined conditions where required.
Validate the final material-process-part system under the conditions relevant to the intended application and implement the controlled workflow using the applicable IFU, technical documentation and internal customer procedures.
Core Engineering Framework
System Architecture
The 3Dresyns® Engineering System links technical stages that are frequently treated separately in trial-and-error workflows.
For vat photopolymerization, these stages include:
- material selection;
- exposure and curing control;
- dimensional calibration;
- failure diagnosis;
- mechanical screening;
- characterization;
- application validation; and
- technical implementation.
For other manufacturing routes, the same high-level structure remains useful, but the applicable control variables and methodologies change according to the technology.
Core Methodologies
Structured Selection Framework (SSF)
The SSF provides the methodological basis for selecting material families according to application requirements, mechanical behaviour, geometry, manufacturing route, processing requirements and other implementation constraints.
For the broader 3Dresyns® portfolio, SSF can also support initial routing between photopolymer, inkjet, powder, ceramic, metal, binder, feedstock, indirect AM and other material systems.
Curing Rate Control System (CRT)
CRT is the process-control framework used for photopolymer systems to relate material curing behaviour to the relevant exposure conditions.
Exposure response depends on variables including printer optics, wavelength, irradiance, exposure time, material response and layer strategy.
CRT does not establish one universal exposure setting for every printer or geometry. It provides structured logic for developing an appropriate process window under defined conditions.
For non-photopolymer technologies, different route-specific process-control variables must be used.
Structured Calibration
The 3Dresyns® calibration methodology evaluates dimensional behaviour in X, Y and Z using defined calibration geometries and controlled processing conditions.
Calibration is used to identify and manage dimensional behaviour within a specific material-printer-process configuration.
A calibration result obtained under one configuration should not automatically be assumed to remain unchanged after material, printer, exposure, geometry or processing changes.
Photopolymer Printing Failure Atlas
The Failure Atlas organizes common SLA, DLP and LCD printing defects according to visible morphology and associated diagnostic logic.
Its purpose is to replace uncontrolled parameter changes with a more structured investigation of likely process variables.
Visible morphology can support diagnosis, but the final cause of a failure may depend on multiple interacting factors and should be evaluated within the actual printer, material and workflow context.
Structured Mechanical Screening Protocol (SMSP)
SMSP provides a printer-native empirical methodology for comparative screening of rigidity, flexibility and fracture behaviour using the defined wedge geometry.
SMSP is a screening methodology, not standardized mechanical testing.
Its rigidity threshold and break thickness readouts are comparative empirical indicators and should not be interpreted directly as Young's modulus, flexural strength, impact strength, fracture toughness or other standardized mechanical properties.
From Screening to Validation
Screening, Characterization and Validation Are Different Stages
The Engineering System deliberately separates rapid screening from formal characterization and final application validation.
- Screening: identifies trends or compares candidate materials and process conditions.
- Characterization: generates measured technical data using defined methods and conditions.
- Engineering validation: assesses whether defined technical objectives are achieved under the specified project conditions.
- Application-specific validation: confirms the final material-process-part system under the actual intended-use conditions and applicable customer requirements.
No individual screening or characterization method automatically substitutes for all subsequent validation activities.
Advanced Validation & Characterization
Where quantitative technical evidence is required beyond initial screening, projects may progress to Advanced Validation & Characterization.
Depending on scope, this may involve mechanical, thermal, rheological, curing, microstructural or other analytical methods.
External laboratories may also be used where specialized equipment, defined methods or third-party reports are required.
Characterization or engineering validation does not by itself constitute regulatory certification or final Product approval.
Application-Specific Validation
The final stage is validation of the actual material, manufacturing workflow and final Product under conditions representative of the intended application.
Final performance may depend on:
- material and material version;
- printer or manufacturing equipment;
- geometry;
- exposure or other process parameters;
- cleaning;
- post-processing;
- post-curing;
- environmental conditions;
- debinding or sintering where applicable;
- manufacturing scale;
- test methodology; and
- intended use.
The customer remains responsible for validating its final Product and manufacturing process according to its actual application and applicable requirements.
Extension to the Full 3Dresyns® Material and Technology Portfolio
Beyond Vat Photopolymerization
The most developed implementation of the Engineering System is the Photopolymer Engineering System for SLA, DLP and LCD.
For other manufacturing technologies, the general engineering sequence may still be applied, but the technical variables and validation methods must be adapted to the corresponding route.
Route-Specific Control Variables
Examples of relevant engineering variables across the broader portfolio include:
- Vat photopolymerization: wavelength, irradiance, exposure, cure behaviour, dimensional calibration, cleaning and post-curing.
- Inkjet: viscosity, surface tension, droplet formation, jetting stability, substrate interaction and curing behaviour.
- Powder routes: powder behaviour, packing, binder interaction, thermal processing and dimensional change.
- Ceramic and metal workflows: powder loading, dispersion, green strength, debinding, sintering, shrinkage and final material state.
- Indirect AM: mold geometry, release, filling, burnout, dissolution, demolding and dimensional compensation.
- Advanced photopolymer routes: energy delivery, optical penetration, feature scale, resolution strategy and process-specific verification.
The applicable Product documentation and IFU should be used to determine the relevant route-specific implementation requirements.
Implementation and Engineering Services
Technical Implementation
The Engineering System is supported by Product documentation, technical resources and engineering services used according to the complexity of the project.
Standard Product documentation and routine support should be distinguished from paid engineering activities.
When Engineering Support Is Required
Different technical problems require different engineering routes.
- Printing & Processing Consulting: focused process troubleshooting and optimization.
- Structured AM Consulting: broader material-process engineering, route assessment and scale-up support.
- Professional 3D Printing Architecture: complete photopolymer material-process-hardware system architecture.
- Resin Customization: development of a custom proprietary material where existing materials are insufficient.
- Advanced Validation & Characterization: structured technical characterization and engineering evidence.
How the System Should Be Used
Typical Photopolymer Implementation Logic
For SLA, DLP and LCD photopolymer systems, the practical sequence is:
- Define the application and technical requirements.
- Select the material and route through SSF.
- Establish curing and exposure logic using CRT where applicable.
- Verify dimensional behaviour through structured calibration.
- Diagnose printing failures where necessary.
- Use SMSP for rapid comparative mechanical screening.
- Use Advanced Validation & Characterization where quantitative evidence is required.
- Perform final application-specific validation.
- Implement and document the controlled workflow.
The sequence is not a guarantee that one fixed parameter set will apply universally. Relevant conditions must be reassessed when material, printer, geometry, equipment or processing conditions materially change.
Important Engineering Boundaries
What the Engineering System Does Not Mean
The Engineering System is a structured technical framework. Use of its methodologies does not automatically mean that:
- a material is universally compatible with every printer;
- one calibration applies to every geometry or process condition;
- SMSP produces standardized mechanical properties;
- characterization equals final application validation;
- a final Product is certified or regulatorily approved;
- a particular technical outcome is guaranteed;
- custom material development is automatically included;
- Professional 3D Printing Architecture is automatically included; or
- 3Dresyns® proprietary formulations, methods or Background Intellectual Property are transferred.
No Customer Access to 3Dresyns® Facilities
Engineering Resources Do Not Create Audit Rights
Use of the 3Dresyns® Engineering System, its methodologies, engineering services or technical documentation does not grant customers, consultants, private auditors, certification bodies, notified bodies acting for customers or other private third parties any right to access, inspect or audit 3Dresyns® facilities, laboratories, manufacturing areas, internal systems, development tools or confidential processes.
Where expressly contracted, 3Dresyns® personnel may provide implementation support at the customer's facilities.
System Summary
The 3Dresyns® Engineering System is the overarching technical framework connecting material selection, process control, calibration, failure diagnosis, comparative screening, characterization, application validation and technical implementation.
Its most developed implementation is the Photopolymer Engineering System for SLA, DLP and LCD workflows, where SSF, CRT, Structured Calibration, the Failure Atlas and SMSP provide distinct but connected engineering functions.
For broader material and manufacturing technologies, the same engineering sequence is adapted to route-specific process variables, documentation and validation requirements rather than being applied as a fixed photopolymer recipe.
Start Your Engineering Workflow
Use the links below to move from system-level methodology to material selection, characterization, engineering support and controlled implementation.
Governing Principle
The 3Dresyns® Engineering System organizes material selection, process control, calibration, diagnosis, screening, characterization and final implementation as separate but connected engineering stages. Screening does not replace standardized testing, characterization does not automatically constitute final application validation, and technical methodologies do not create universal performance guarantees outside the conditions in which they are applied.