AON3D Readyprint™ ASA
Readyprint™ acrylonitrile styrene acrylate (ASA) is an amorphous thermoplastic polymer commonly used for rapid prototyping and weather-resistant parts due to its strength, low cost, and ease of printability. ASA offers properties close to ABS with improved resistance to UV, moisture, and other climatic conditions providing higher durability over time.
Printing Difficulty: Easy/Beginner
Readyprint™ ASA can be purchased from AON3D directly by contacting help@aon3d.com.
- Moisture Control
- Build Platform Adhesion
- General Process Settings
- Post-Processing
- Troubleshooting & Best Practice
Moisture Control
Readyprint™ ASA is factory pre-dried and should be installed in the Filament Dry Storage and Feed System prior to printing to prevent moisture uptake and minimize the impact of moisture on the printing process. In ambient air, ASA is mildly susceptible to hydration. It will generally remain printable, but surface finish and seam quality will suffer after prolonged exposure.
If the filament is hydrated, dry filament at 80ºC for 2-4 hours in a convection oven. Ensure drying equipment respects our site requirements to ensure adequate drying performance is achieved. Store filament in air-tight bags or containers alongside silica or zeolite desiccant. Be sure to replace desiccant regularly as its moisture capture ability is exhausted.
For more information, see the Filament Drying and Moisture Control page.
Build Platform Adhesion
For instructions on how to inspect the AON3D build plates, refer to the Clean Build Platform and Build Chamber procedure for AON M2+ or the Inspect and Clean Build Plates procedure for AON-M2 and AON-M2 2020.
PEI Build Sheet
ASA prints best on the PEI build sheet as it exhibits great adhesion behavior at moderate cost and improved durability over PC sheets. The PEI film is sensitive to Z offset calibration and thermal stability of the printer system. For best results, ensure that the machine has reached thermal equilibrium before calibrating. If the bed-to-nozzle distance is too small, or the first layer is too hot, the part may be difficult to remove without damaging the part and/or build sheet.
CF-PEEK Composite Plate
ASA prints well on the CF-PEEK composite plate as it exhibits great adhesion behavior with the highest durability compared to PEI and PC sheets. For best results, ensure that the machine has reached thermal equilibrium before calibrating. If the bed-to-nozzle distance is too small or too large, underextrusion, overextrusion, and first layer adhesions issues may occur.
PC Sheet
ASA prints well on the PC build sheet which provides an affordable and reliable solution for prints that are smaller than 225 x 225mm. Larger prints are possible but may result in loss of vacuum and failure to complete the print. The PC film is sensitive to Z offset calibration and thermal stability of the printer system. For best results, ensure that the machine has reached thermal equilibrium before calibrating. If the bed-to-nozzle distance is too small, or the first layer is too hot, the part may be difficult to remove without damaging the part and/or build sheet. Caution: First layer extrusion temperatures in excess of 250ºC or elevated bed temperature selections can cause parts to permanently weld to the print surface.
General Process Settings
For best results, process settings should be adjusted based on a particular model geometry. If you require process development support, our Applications Engineering team can help! Send us a message at help@aon3d.com to consult with one of our Additive Manufacturing Specialists.
| Setting | AON M2+ |
|---|---|
| Extrusion Temperature | 220-260ºC |
| Bed Temperature | 90-100ºC |
| Chamber Temperature | 40-80ºC |
| Print Speed | 20-80 mm/s |
| Nozzle Size | 0.25-1.20 mm |
| Preferred Build Platform | PEI Build Sheet |
Dual Extrusion and Support
Dual Extrusion Profiles and Standard Geometries for Readyprint™ ASA coming soon.
Sample Slicer Profiles
SuperSlicer
All AON3D-validated materials are available in the SuperSlicer configuration bundle. Refer to SuperSlicer Installation and Update to install and update the SuperSlicer software. Follow the instructions to update to the latest version to ensure you have access to all available materials.
Simplify3D®
Simplify3D® sample profiles for Readyprint™ ASA are available in the Downloadable Assets section.
Post-Processing
Allow all machine components to reach room temperature before proceeding further. Failure to allow components to cool down will result in thermal injury (burns) to personnel.
Troubleshooting & Best Practice
High-Speed Printing
ASA is well suited for high-productivity applications. With appropriate nozzle size and layer height selection, ASA can be printed at tool speeds of up to 100 mm/s.
Key best practices to consider when selecting higher print speeds:
- Print speed above 100 mm/s induces significant stress in the deposited material, leading to an increased risk of warping and shrinkage under high-temperature service.
- Sharp corners, small holes, and other surface details begin to lose dimensional accuracy and resolution beyond 60-80 mm/s.
- Increased layer height is an effective alternative to high tool speeds to minimize print times while reducing overheating, residual stress, and underextrusion issues.
- Increased extrusion width or larger nozzle size selection are also effective means to reduce print time.
- At high deposition rates (elevated tool speed, layer height, or nozzle size), an increased extrusion temperature is also required to ensure consistent flow and adhesion of extruded material.
Overheating
ASA is prone to overheating due to its low thermal conductivity and elevated ambient temperature of the printing chamber. Overheating typically presents as deformed part features, curling edges, loss of dimensional accuracy, and increasingly glossy part surface finish.
Risk of overheating increases as:
- part sizes fall below 30 mm x 30 mm cross-sectional areas.
- print speeds increase beyond 60-80 mm/s.
- chamber temperature is greater than 50ºC.
- chamber convection is turned off.
Note, nozzle size and part geometry will impact these rules of thumb.
Moderate reduction of chamber temperatures down to 50ºC can also have a positive impact on overheating. However, for large components (greater than 50 mm x 50 mm x 50 mm), warping effects may demand an elevated chamber temperature (>50ºC) selection.
For medium size cross sections (down to 10 mm x 10 mm), reduction of print speed (down to 40 mm/s) and extrusion temperature (down to 220ºC) can have a mitigating effect on overheating. For cross sections below 10 mm x 10 mm, tool contact with the print surface will dominate heating behavior. Introducing layer-to-layer dwell commands, or adding duplicate parts in the build, is the best way to manage heat accumulation in this case.