Is Markforged Onyx Filament Suitable For Aerospace Applications?

2025-07-28 15:19:54 52

3 Answers

Mason
Mason
2025-07-30 11:58:06
Having used Markforged printers in a university aerospace lab, I can say Onyx filament is surprisingly versatile. It's not just about strength—the real advantage is how it bridges the gap between prototyping and end-use parts. We printed sensor housings for high-altitude balloons that survived -60°C and 100°C cycles without cracking. The carbon fiber gives it a thermal expansion coefficient closer to metals, which matters when mating printed parts with aluminum frames.

Another underrated feature is the EMI shielding. In avionics, plastic enclosures often need metal coatings to block interference, but Onyx's conductivity reduces that need. We tested it against ABS enclosures in an RF chamber, and the difference was noticeable. That could save weight in antenna mounts or wiring channels.

That said, aerospace regulations move slowly. While Onyx meets some ASTM standards for flammability and outgassing, full certification for manned aircraft would take years. For now, it's perfect for ground support equipment or experimental aircraft where certification isn't a barrier. The ability to print replacement parts on-demand at remote locations (like desert test sites) has already saved our team weeks of downtime.
Olivia
Olivia
2025-07-31 21:36:42
From an engineering standpoint, Markforged Onyx filament has interesting potential for aerospace, but with caveats. Its tensile strength and stiffness are closer to aluminum than traditional plastics, and the carbon fiber reinforcement adds dimensional stability. I've worked with teams testing it for cabin interior components like brackets and ducting, where weight savings are worth the trade-off in absolute strength. The flame retardant properties are decent, though not aerospace-certified out of the box.

Where it shines is rapid iteration. Designing a fuel cap hinge? You can print a functional Onyx prototype in hours instead of waiting weeks for machined parts. For small-batch satellites or drones, that agility is gold. But I wouldn't trust it for flight-critical parts like landing gear without extensive testing. The filament's weakness is layer-dependent strength—loads perpendicular to layers can be problematic. Also, while Markforged claims continuous fiber reinforcement (like carbon or Kevlar) can boost performance, that hybrid approach requires their proprietary printers and gets pricey.

For context, Airbus has experimented with similar composites for non-load-bearing cabin parts. Onyx could follow that path, especially where complex shapes make metal impractical. But until long-term fatigue and UV resistance data is industry-standard, it'll remain a supplementary material rather than a primary solution.
Brielle
Brielle
2025-08-01 03:37:37
As someone who tinkers with materials and follows aerospace trends, I've seen Markforged Onyx filament pop up in discussions. It's a nylon-based composite with chopped carbon fiber, which gives it impressive strength and heat resistance. For aerospace, those properties matter a lot. I've used it for drone parts that need to be lightweight but handle stress, and it performs way better than standard plastics. The layer adhesion is solid, and it doesn't warp easily, which is crucial for parts that face temperature swings. That said, it's not a magic bullet—high-end aerospace still relies on metals or advanced composites for critical components. But for prototyping, non-structural parts, or even some UAV applications, Onyx is a strong contender. The ability to print complex geometries without machining is a huge plus, and the surface finish is smoother than most filaments, reducing post-processing time.
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Related Questions

What Printers Are Compatible With Markforged Onyx Filament?

3 Answers2025-07-28 07:23:59
I've been using Markforged printers for a while now, and the Onyx filament is one of my favorites because of its strength and finish. The best printers for Onyx are naturally Markforged's own, like the 'Mark Two', 'X7', and 'X5'. These printers are designed to handle the unique properties of Onyx, especially its carbon fiber reinforcement. I’ve tried third-party printers, but they often struggle with the high temperatures and precision needed. The 'Onyx One' is also a solid choice if you’re looking for something more budget-friendly but still reliable. Stick with Markforged printers for the best results—they’re built for this filament.

Where To Buy Markforged Onyx Filament For 3D Printing?

3 Answers2025-07-28 23:52:06
I've been into 3D printing for years, and sourcing high-quality filaments like Markforged Onyx is crucial for strong, professional prints. I usually buy mine directly from the Markforged website because they offer the most reliable supply and customer support. Their official store ensures you get authentic material with consistent quality, which matters a lot for precision prints. I’ve also had good experiences with authorized resellers like MatterHackers and Amazon, but you have to double-check seller ratings to avoid counterfeits. Local industrial suppliers sometimes stock it too, but availability varies. Always check the spool labels and packaging to confirm it’s genuine Markforged Onyx—knockoffs can ruin your prints and even damage your printer.

How Strong Is Markforged Onyx Filament Compared To Nylon?

3 Answers2025-07-28 08:02:21
As someone who's been tinkering with 3D printing for years, I can confidently say that Markforged Onyx filament is a game-changer. It's not just strong—it's *ridiculously* strong compared to standard nylon. Onyx has this unique carbon fiber reinforcement that gives it a tensile strength around 800 MPa, which is way higher than most nylons sitting at 50-80 MPa. The layer adhesion is insane, and it handles impact like a champ. I’ve printed gears and brackets with Onyx that survived way more abuse than my old nylon prints ever could. The surface finish is also smoother, almost like it’s been sanded down. If you need durability, Onyx is the way to go.

What Are The Best Print Settings For Markforged Onyx Filament?

3 Answers2025-07-28 12:26:19
I've been 3D printing with Markforged Onyx filament for a while now, and I’ve found that the best print settings depend on what you’re aiming for. For general use, I stick to a nozzle temperature of around 270-280°C and a bed temperature of 80-90°C. The layer height I prefer is 0.1mm for detailed prints, but 0.2mm works just fine for stronger, functional parts. I always use a brim or raft for better adhesion, especially for larger prints. The print speed is usually set between 30-50mm/s to ensure quality without sacrificing too much time. Cooling is minimal, just around 30% fan speed after the first few layers, to prevent warping but still maintain layer adhesion. These settings have given me consistently good results, whether I’m printing prototypes or final parts.

What Is The Layer Adhesion Strength Of Markforged Onyx Filament?

3 Answers2025-07-28 07:13:23
I've been working with Markforged Onyx filament for a while now, and the layer adhesion strength is seriously impressive. It’s one of those materials that just holds together like a champ, even under stress. From my experience, parts printed with Onyx can handle a lot of bending and twisting before they give way, which makes it perfect for functional prototypes. The nylon base gives it that extra toughness, and the carbon fiber filler boosts the strength even more. I’ve compared it to other filaments, and Onyx stands out because the layers bond so well during printing. If you’re looking for something durable and reliable, this filament won’t let you down. It’s become my go-to for parts that need to last.

How Does Markforged Onyx Filament Perform Under High Heat?

3 Answers2025-07-28 13:10:36
I've been tinkering with 3D printing for years, and the Markforged Onyx filament is one of my go-to materials for high-heat applications. It holds up surprisingly well compared to standard nylon or PLA. The carbon fiber reinforcement gives it a higher heat deflection temperature, so parts don't warp or soften as quickly. I've used it for engine bay components in my car, and they withstand temperatures up to around 150°C without deforming. The surface finish stays smooth, and the layer adhesion is solid. It's not quite as heat-resistant as PEEK or Ultem, but for the price and printability, it's a fantastic middle ground.

Can Markforged Onyx Filament Be Used For Functional Parts?

3 Answers2025-07-28 20:36:23
I've been 3D printing for years, and let me tell you, Markforged Onyx filament is a beast for functional parts. It's not just about looks—this stuff is reinforced with chopped carbon fiber, making it way tougher than standard nylon. I've printed gears, brackets, and even drone parts that hold up under serious stress. The layer adhesion is insane, and the surface finish is smooth enough for moving parts. Compared to PLA or ABS, Onyx feels like upgrading from a bicycle to a motorcycle. It’s pricey, but if you need parts that won’t snap under pressure, it’s worth every penny. Just make sure your printer can handle high-temp materials, because this isn’t your average filament.

How Does Markforged Onyx Filament Compare To Carbon Fiber?

3 Answers2025-07-28 16:19:13
I've been using Markforged Onyx filament for a while now in my hobbyist 3D printing projects, and I can confidently say it's a fantastic material. Onyx is a nylon-based filament reinforced with chopped carbon fiber, giving it a unique balance of strength and surface finish. Compared to pure carbon fiber, Onyx is more user-friendly for printing and doesn't require specialized equipment. While pure carbon fiber parts are stronger, Onyx offers impressive strength-to-weight ratio and a smooth, professional-looking finish. The layer adhesion is excellent, and the parts come out with a nice matte black appearance. For functional prototypes or end-use parts that need to look good and perform well, Onyx is a great choice. It's not as strong as continuous carbon fiber, but it's much easier to work with and more cost-effective for most applications.
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