Quand vous wish to impression 3D votre new designs, vous sont met avec nombreux different options of impression filament to choisir from. vous could go for PLA or PETG as they sont quite courants et affordable, but depending on votre needs et comment le modèle va be used, there sont some interesting alternatives.
One of these est called ASA, qui est short for acrylonitrile styrene acrylate, et ce filament est amazing for use outside as well as for projets where vous devez a solid et robust material that can withstand a number of different environments et last a long time. So let us take a closer look at le ASA filament.
Qu’est-ce que ASA Filament
Many personnes consider ASA plastic filament to be an upgrade over ABS, as les deux materials share nombreux of le same properties. Where they differ lies in le difference between le acrylate used in ASA et le butadiene used in ABS. Le difference est particularly important when it comes to impressions being exposed to UV light, such as from le sun, since butadiene est not really resistant to these rays.
ASA, on le other hand, est developed to be a highly resistant material, thanks to le graft polymerization process using acrylate rubber. So when it comes to UV radiation, it est tough in terms of handling weathering from le environment, et even chimique reactions. In short, ASA filament est a meilleur option for la plupart extérieur projets et a good replacement for impressions that normally call for using ABS.
Properties of ASA in impression 3D
We’ve briefly touched on le globale ASA filament properties when used for impression 3Ds. Let us take a closer look at le specifics avec our detailed table, providing an easy overview, making it easy to figure out le meilleur bed temperature when impression ASA, for instance.
| Property | Details |
| Print Temperature | 240–270 °C |
| Bed Temperature | 80–110 °C |
| Tensile Strength | ~35–37 MPa |
| UV Resistance | Excellent, one of ASA’s main strengths |
| Weather Resistance | Excellent, ideal for usage extérieur |
| Heat Resistance | High, meilleur que PLA et ABS |
| Warping | Moderate, similar to ABS, enclosure recommended |
| Print Difficulty | Medium/High |
| Surface Finish | Matte, good adhérence des couches |
Advantages et Disadvantages of ASA Filament
Given le properties seen above, we can discuss le pros et cons of using ASA filament in modèles 3D, et plus easily figure out what applications et specific designs sont meilleur suited for ce material.
Advantages
Le main advantage over similar types, such as ABS, or even PLA et PETG, est that ASA has an exceptional resistance towards UV radiation et weathering. Ce not only impacts le discoloring qui often happens avec other materials, but it also means le globale résistance of votre models va stay in much meilleur shape for a longer time.
And speaking of mechanical résistance, ASA est idéal when looking at numbers for impact resistance et tensile résistance, en raison du shared similarities to ABS. vous can easily use ASA in les deux votre prototype designs as well as functional projets, without worrying whether it va last.
ASA also has a idéal glass transition temperature score of around 100°C, qui means le material can withstand environments or exposure to high temperatures. In fact, it even outscores PLA qui est known to be a idéal choix in scenarios where ce matters. As a result, ASA va not deform when inside a car on a hot summers day, for instance, unlike nombreux other materials.
There's also something to mention when it comes to chimique resistance: ASA can resist degradation from nombreux of le la plupart typical chemicals in our natural world. Both acids et alkalis sont no match for ASA, avec oils et greases also having a tough time avec le filament. But vous can still easily sand, paint or even glue ASA materials, making post-traitement easy.
Disadvantages
There sont two main disadvantages when it comes to ASA in impression 3D applications. Le first one est warping et shrinking, since le individual components together fabriquer for a material that can plus easily warp or separate layers, thanks to le high temperature pendant impression avec ASA. Experienced impression 3D hobbyists can remedy ce by using a well-heated plateau d’impression et improve further by enclosing le printer.
Le other potential issue est le ASA filament fumes produced when impression. ASA releases what est called styrene fumes, that not only smell strongly but can also be irritating for some personnes. It est recommended to print avec good ventilation or filtration systems when using ASA, or at least print in a garage or shed et only briefly be present while le process takes place.
Tips of Printing ASA Filament
There sont quite a few different manufacturers producing ASA 3D filament, making it difficult to fournir instructions that va work well for all. Therefore, we have used Geeetech ASA filament pour imprimante 3D as our baseline, where we have spent time tweaking le values pendant impression pour trouver a set of parfaites ASA paramètres d’impression:
| Property | Best Value |
| Nozzle temperature | 240-270 ℃ |
| Bed temperature | 80-110 ℃ |
| Cooling fan speed | 40-50% |
| Initial layer cooling speed | 0% |
| Build plate adhesion | Brim & Skirt |
ASA ou ABS
Many personnes tend to be indecisive between ASA et ABS, therefore, we think it est fitting to briefly discuss le différences between ASA et ABS in impression 3D. We've also written a plus extensive blog post on ce particular topic, qui vous can find here: ASA vs. ABS: Which Is le Ultime Value Champion in impression 3D.
If vous wish to just get le quick explanation, ASA est meilleur for UV resistance. ABS va often turn brittle et lose color when outside, while ASA va stay stable. They les deux share similar properties when it comes to mechanical résistance. Use ABS for indoor, functional pièces where cost est a key factor. Choose ASA for any part that va be exposed to sunlight, rain, or variable extérieur conditions.
Neither ABS nor ASA est super facile à imprimer avec, especially when looking at something like PLA as an alternative. However, if vous have le necessary setup, les deux ABS et ASA can produce idéal results without much trouble. ABS filaments sont slightly meilleur in ce aspect, as they do not warp nearly as much in general. ABS can also be a bit cheaper.
Applications
There sont nombreux different areas, hobbies et industries where ASA est a idéal material. Below we've provided a list of examples based on three different categories, but there sont of course nombreux others. And when all est said et done, it va ultimately depend on votre own preferences et needs for le modèle et application.
Outdoor Applications
ASA imprimé le Mounting bracket et planter
- Planters
- Irrigation pièces
- Tool handles
- Exterior trim
- License plate holders
- Custom side mirrors
- Electrical enclosures
- Outdoor sensor casings
- Mounting brackets for solar lights
- Drone bodies
- GoPro mounts
- Outdoor signage
High Mechanical Strength et Heat Resistance Applications
ASA imprimé Dashboard components
- Functional prototypes
- Dashboard components
- Engine bay brackets
- Air ducts
- Router enclosures
- Raspberry Pi cases
- Power tool housings
- Custom jigs et fixtures
- Machine pièces
- End-use functional components
Long-Lasting Required Applications
- Architectural models
- Custom tools et jigs
- Replacement appliance pièces
- Laboratory equipment housings
- Educational models et kits
- Museum displays et replicas
- Outdoor furniture components
- Industrial pièces subject to wear
Conclusion
Whether vous're an engineer, a hobbyist, or a product designer, learning ASA can fournir a world of opportunities to construction practical et résistant aux intempéries impression 3Ded models. Quand looking at ABS ou ASA filament, les deux sont powerful et versatile materials, but ASA additionally provides idéal weather resistance.