How to Unlock LW-ASA for RC Aircraft | Lightweight, UV-Resistant 3D Prints

How to unlock LW-ASA for RC Aircraft - Joel Vlashof’s Insights

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Next-Level RC Printing:
How to unlock LW-ASA for RC Aircraft
Joel Vlashof’s Insights

In the world of 3D-printed RC aircraft, lightweight materials are essential. At colorFabb, we continuously innovate to give makers the tools they need to explore new possibilities. More and more designers are discovering that LW-ASA can be a powerful upgrade for projects that demand:

➔ Enhanced UV resistance
➔ Heat stability
➔ Outdoor durability

RC model designer Joel Vlashof has spent the past months diving deep into LW-ASA

Developing a reliable set of settings and workflows that allow LW-ASA to deliver impressively consistent results. Because this filament requires more from the printer and environment - such as an enclosed build chamber and specific temperatures - his findings are particularly valuable for anyone interested in working with LW-ASA. In this User Story, Joel shares his insights, settings, and practical tips so you can discover how to get the most out of LW-ASA for your own RC projects.

3D Printed RC Tires with VarioShore RC F1 Car

We let Joel do the talking:

ColorFabb LW-ASA: My New Standard for RC Model Aircraft

3D printing RC model aircraft has reached a new milestone with the introduction of ColorFabb LW-ASA. After countless tests with our team, we’ve developed a reliable set of settings that allow this filament to deliver consistent and impressive results. In this blog, we share our findings, tips, and key considerations so you can get the most out of LW-ASA.

Which printers work best?

LW-ASA requires a powerful and well-tuned printer. Our tests show that the Bambu Lab P1S and X1C deliver excellent results. We are currently also testing the H2S, P2S, and Creality K2 Plus.
Important: LW-ASA does not work on open-frame printers. An enclosed chamber is essential due to the high printing temperatures and fume development.

Settings for reliable prints

Printing temperature: ±250°C
No retraction: Stringing will occur but can be easily removed by hand or with sandpaper (80–120 grit)
Heated bed: Stays hot throughout the entire print, which is energy-intensive
Ventilation: Always print in a well-ventilated space - ASA releases fumes that can be harmful with long-term exposure

Weight and performance

One of the biggest advantages of LW-ASA is its weight. Our parts are 15–20% lighter than the same models printed in LW-PLA. This means faster aircraft, improved agility, and less strain on the motors.

Material properties

LW-ASA is not only lightweight, but also:
• UV-resistant: perfect for outdoor use
• Heat-resistant: withstands sunlight and motor heat
• Moisture-resistant: no warping or degradation in humid conditions
• Durable and robust: ideal for functional parts that need to take a beating

Free settings and resources

The settings we use are available for free at RC-Jetprint.com. You can apply them directly to your Bambu Lab printer.

Joel's favorite filament

ColorFabb LW-ASA pushes the boundaries of what’s possible in RC model building. With the right printer and settings, you can create lighter, stronger, and more durable parts that can withstand the elements. It requires some preparation and attention to safety, but the results speak for themselves.