Fast Instructions for Use (IFU) & Printing Parameters for Asiga DLP pr

This document provides fast, visual and practical guidance for the use of 3Dresyns® photopolymer resin systems on Asiga DLP platforms.

This Fast IFU for Asiga printers is intended as a visual reference and workflow aid and complements the official:

This Fast IFU does not replace the official IFU and does not define validated or universal processing conditions.

Key message: use this Fast IFU as a rapid operational guide for Asiga workflows. Final settings must still be selected and validated through structured calibration under the real resin–printer–power conditions of your system.

1) Purpose of this Fast IFU

The purpose of this Fast IFU is to:

provide visual examples of typical Asiga Composer workflows,
illustrate the main calibration steps and interface navigation,
support faster onboarding and troubleshooting,
give a practical route for selecting starting print settings before deeper optimisation.

Images, screenshots and examples shown in this document are illustrative only. User interfaces, firmware versions and available options may change over time.

2) Scope and limitations

This Fast IFU applies to selected Asiga systems and configurations used for vat photopolymerization.

Performance, print quality and material behaviour depend on the complete material–printer–process–post-processing system, including:

resin formulation and version,
selected exposure power and strategy,
target Z layer thickness,
post-processing workflow,
environmental conditions.

3Dresyns does not control printer hardware, firmware updates, user-interface changes or proprietary exposure algorithms implemented by Asiga.

Users are responsible for:

verifying compatibility between the selected 3Dresyns® material and their specific Asiga configuration,
validating final settings for their intended application,
following the official IFU for all critical processing steps.

3) Relationship to official Instructions for Use

In case of discrepancy between this Fast IFU and any official Instructions for Use (IFU), the official IFU always prevails.

This Fast IFU is provided for convenience, illustration and workflow orientation only.

4) Standard starting settings for Asiga

These are typical starting points for Asiga workflows and must be validated for each resin, printer, selected power setting and intended application.

Z layer thickness: typically 0.050–0.100 mm
Normal exposure time: typically ~2–20 s for 50–100 µm layers
Burn-in exposure: typically ~75–90 s, often around 80 s
Initial adhesion layers: typically 2–4
Important: exposure times depend strongly on selected power. 7 mW/cm² is commonly used as a reference in DentalMODEL-style starting profiles, but optimum settings must be determined experimentally.

Interpretation rule: these are not fixed recipes. They are a quick starting framework from which the user performs structured CRT-based optimisation.

5) Why exposure times are printer-specific on Asiga systems

Real light power varies across the vat or projected area.
Light output changes with cumulative printer use and maintenance state.
Different resins require different curing energies.
Different Z layer thicknesses require different cured depths.
Selected Composer power settings directly affect the energy delivered to the resin.

6) Fast CRT logic for Asiga

The quickest structured way to determine a useful starting exposure is to generate a fast CRT using the selected Asiga power setting.

Start with 5 s, 10 s and 15 s.
Measure cured thickness and evaluate green strength at each point.
Add 1–2 extra points only in the interval relevant to the target Z layer thickness.

This is usually sufficient for rapid implementation because the burn-in behaviour can often be screened separately with ~75–90 s, while the main unknown is the correct standard-layer exposure.

How to extend the fast CRT:

For faster systems or higher-power settings, add points between 1 and 5 s or between 5 and 10 s.
For slower resins, filled systems or lower-power settings, add points between 15 and 20 s or above.

7) Printing workflow in Asiga Composer

Open Asiga Composer and click NEW:

Select your exact printer model and target Z layer thickness, most commonly 0.050 mm or 0.100 mm.
Select DentalMODEL or another reference profile as a starting point.

Click “ADD PARTS”:

Add the 3Dresyns first calibration file: 3Dtest1, the flat coin without supports

Click “BUILD WIZARD”:

Press NEXT

8) Initial calibration settings in the Build Wizard

During the initial calibration phase:

Set Base Plate Thickness = 0.000 mm
Leave anti-aliasing unchecked
Use burn-in exposure ~75–90 s, often around 80 s
Leave Z compensation = 0
Leave XY compensation = 0

The default Build Wizard exposure time shown in the reference profile must be treated only as a provisional placeholder and replaced by the value determined from your CRT at the selected Asiga power setting.

9) How to choose the optimum exposure time

Exposure behaviour depends on resin formulation, exposure power, printer configuration and environmental conditions. The values shown below are examples only. Users must generate their own measurements.

As a practical guideline, select the standard-layer exposure from the CRT using an appropriate cure-thickness factor:

Fast, brittle or highly reactive resins: typically start at approximately 1.0–1.2× the target layer thickness
Slower, softer, less brittle or more peel-sensitive resins: typically start at approximately 1.3–1.5× the target layer thickness

Important note: these factors are approximate. Different resins may show different kinetic, mechanical, physical and adhesive behaviour and may therefore require different exposure margins even at the same nominal layer thickness.

Start near 1.5 cured layers as a robust initial reference.
If printing is already successful and the goal is more speed or finer detail, move towards approximately 1.1–1.2 layers.
If the selected exposure is too weak for reliable printing, move towards approximately 1.75–2 layers.

Practical rule: under-cured (soft or weak) → increase exposure. Over-cured (too brittle, excessive adhesion, loss of detail) → reduce exposure.

10) Curing Rate Table (CRT) example — user-generated

The CRT correlates exposure duration with cured thickness and qualitative green strength under the selected Asiga power setting.

Example of the Curing Rate Table (CRT) of a reference 3Dresyn x with lot y at certain light power of z mW/cm2 at 405 nm. The values shown are examples only.

Exposure time (s)	Cured thickness (µm)	Evaluation of cure	Evaluation of adhesion on glass	Interpretation / practical use
5	Measured value	May range from uncured to weakly cured depending on the system	May range from none to poor adhesion depending on the system	Useful as a first fast CRT point for screening highly reactive systems or higher-power settings.
10	Measured value	May range from weak, soft or green-state cure to acceptable initial cure	May range from poor to moderate adhesion	Useful midpoint in a fast CRT. Often helps identify whether the resin remains under-cured or is entering the practical working window.
15	Measured value	May range from moderate cure to well-cured depending on resin speed and power	May range from moderate to good adhesion	Useful third fast CRT point. Often sufficient to bracket the likely standard-layer exposure interval in slower systems.
20	Measured value	Often enters the practical working range in slower or lower-power conditions	Usually stronger adhesion than shorter times	Useful extension point when 5–10–15 s remains too low for the target layer thickness or for slow or highly filled resins.
25–30	Measured value	May be required for slow-curing systems, filled materials or lower-power settings	Can become strong	Useful for broader CRT mapping when the practical cure window sits beyond 15–20 s.
75	Measured value	High-dose reference point with strong cure	Typically very strong adhesion in many systems	Useful as a practical reference for burn-in or adhesion-layer screening.

Mobile: scroll horizontally to view all columns. The first column remains visible while scrolling.

11) Calibration steps (Spot Timer method)

Remove the build platform from the printer.
Place a small resin drop on a clean glass slide.
Position the glass slide at the centre of the vat or tank.
Cure the resin drop for a selected exposure time using the Spot Timer.
Wipe away uncured resin.
Measure cured thickness using a caliper or micrometer and record qualitative strength.
Repeat the procedure at increasing exposure times.

This procedure generates a curing-rate curve specific to the selected resin, exposure power and workflow.

12) Choosing your starting print settings

Select your target layer thickness, typically 50 µm or 100 µm.
Choose an exposure time where the CRT thickness is approximately 1.2–1.5× the target layer thickness as a practical starting point.
Under-cured (soft or weak) → increase exposure.
Over-cured (excessive adhesion, brittleness or loss of detail) → reduce exposure.

Burn-in exposure should be selected based on the exposure showing the strongest adhesion to glass, typically in the range of ~75–90 s.

13) Validation using reference test files

3Dtest1 (flat coin without supports)
Confirms basic printability and provides an indication of XY resolution.

If 3Dtest1 fails:

Full detachment → increase burn-in time and/or number of initial layers
Soft or tender part → increase standard exposure time
Brittle part or excessive adhesion → decrease exposure time

3Dtest2 (flat coin with supports)
Validates printability with supports and enables evaluation of XYZ accuracy.

Example Z accuracy calculation:
If printed thickness = 2.1 mm and theoretical thickness = 2.0 mm
Z error (%) = (2.1 − 2.0) / 2.0 × 100 = 5%

14) Quality evaluation and fine adjustment

Read the smallest printed concentric feature to estimate XY resolution.
Measure printed thickness versus theoretical value to quantify Z accuracy.
If higher detail or accuracy is required, fine-tune exposure time, exposure power and/or use appropriate Fine Tuners following the applicable IFU guidance.

15) Basic tools and equipment

The following tools and equipment may be required to support setup, verification and post-processing when implementing printer-specific workflows on Asiga systems:

digital caliper or micrometer,
microscope glass slides,
weighing balance (optional).

Tool selection and usage depend on the specific application and level of process control required.

16) Cleaning and post-processing

Cleaning and post-processing must follow the applicable Instructions for Use (IFU), including:

Instructions for Use (IFU) for DLP & LCD printers
any material-specific or application-specific IFU where applicable.

Deviations from qualified post-processing workflows may affect surface quality, mechanical performance and long-term material behaviour.

Drying before post-curing is mandatory. Washed parts must be fully dried before final post-curing.

17) Technical support and consulting

For complex applications or advanced workflow optimisation, technical support and consulting services may assist users in designing printer setups adapted to their specific requirements.

Technical consultation does not replace user responsibility for validation, qualification or regulatory compliance.

18) Advanced note for Asiga-specific optimisation

Advanced workflow optimisation on Asiga systems requires careful consideration of process trade-offs.

Increasing temperature may reduce resin viscosity and peeling forces.
Increasing exposure power or light intensity may improve printing speed but can reduce resolution or surface definition if not recalibrated.
For very viscous resins, Separation Distance may be increased where needed.
Support Exposure may be increased where necessary to reinforce support integrity.
Wait time after separation may be increased where additional resin flow time is needed.

Users implementing advanced optimisation strategies are responsible for documenting final settings, maintaining traceability and validating performance for their intended application. Custom configuration files or printer profiles may be created as part of user-defined workflows. Record your final settings and, if needed, create your own INI file.

Fast Instructions for Use (IFU) & Printing Parameters for Asiga DLP printers