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The ultimate 3d printing nozzle for people looking for the best balance between wear resistance and high performance.
The ultimate 3d printing nozzle for people looking for the best balance between wear resistance and high performance.
355 backers pledged CA$ 34,572 to help bring this project to life.

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Tungsten Carbide Nozzle for Ultimaker, Prusa, Lulzbot & more

CA$ 34,572

355

What is a prototype?

A prototype is a preliminary model of something. Projects that offer physical products need to show backers documentation of a working prototype. This gallery features photos, videos, and other visual documentation that will give backers a sense of what’s been accomplished so far and what’s left to do. Though the development process can vary for each project, these are the stages we typically see:

Proof of Concept

Explorations that test ideas and functionality.

Functional Prototype

Demonstrates the functionality of the final product, but looks different.

Appearance Prototype

Looks like the final product, but is not functional.

Design Prototype

Appearance and function match the final product, but is made with different manufacturing methods.

Production Prototype

Appearance, function, and manufacturing methods match the final product.

751de781a34a31618026c48f6791c90d original.jpg?ixlib=rb 2.1

Prototype Gallery

These photos and videos provide a detailed look at this project’s development.

Your nozzle is the last and final step in your extrusion system, and maybe the most important part of your 3d printer. Plastic flows through the small orifice, thanks to the pressure generated by the extruder pinch system. This high flow can reach a pressure as high as 250 times the atmospheric pressure (25 MPa).  

With plain plastic, any common metal can easily hold up against the flow. Unfortunately, once we start using plastic filaments with hard reinforcement fibers such as carbon and glass, things start to get more complicated; these reinforcement materials will scratch the inner wall of your nozzle orifice as they pass due to the flow and pressure. Both glass and carbon are known to be very hard, a lot harder than any metals, resulting in what is known as abrasion inside your nozzle.  

The more you print; the worse it gets...  

That’s why we designed the Tungsten Carbide Nozzle: a state of the art 3d printer nozzle that offers good durability and performance for almost any 3d printer, such as Ultimaker, Raise3d, Prusa, Makerbot, Robo, LulzBot, Flashforge and many more.

Available in different shapes and models for compatibility
Available in different shapes and models for compatibility

 

 

We've used peek carbon fiber filament from 3dxtech and colorfabb XT-CF20
We've used peek carbon fiber filament from 3dxtech and colorfabb XT-CF20

 

Prusa i3 MK2 with Tungsten Carbide nozzle using Colorfabb XT-CF20 filament
Prusa i3 MK2 with Tungsten Carbide nozzle using Colorfabb XT-CF20 filament

 

Zoom on 3d printed part to show the really high quality of prints using the Tungsten Carbide Nozzle.
Zoom on 3d printed part to show the really high quality of prints using the Tungsten Carbide Nozzle.

 

  

      

 

Tungsten carbide is the ceramic of choice when it comes to wearing and abrasion resistance. It is not to be confounded with tungsten alloy, which is metal. For instance, cutting tools for steel and tool steel are made from tungsten carbide. It is also used extensively in the mining industry as a button insert for crushing rocks.  

The high thermal performance of the tungsten carbide keeps the nozzle tip hot, thus allowing faster printing speed without sacrificing the quality.  

Tungsten carbide has exceptional wear resistance due to its high hardness. Both the nozzle hole size and height will always stay the same, no matter how long or how hard you use it.

Hardness, Thermal conductivity and wear resistance comparison between common nozzle materials
Hardness, Thermal conductivity and wear resistance comparison between common nozzle materials

  

To understand the difference between tungsten and tungsten carbide, we first need to know what is a ceramic and what is a metal.  

Ceramics are among the hardest material known. They are completely different from metal, even if some of them contains metal atoms.  

Silicon  

For example, silicon carbide, a ceramic, is used in high temperature and high hardness applications such as abrasives, brakes and bulletproof vest. On the other hand, silicon, a metal, is used mostly in electronics as a semiconductor. It is rarely used as a metal for mechanical applications, except as a minor alloying element.  

Tungsten  

Tungsten, as a metal, is mostly used for its very high density as counterweight and vibration dampening application. It’s also a refractory metal, meaning that it can handle very high temperature. 

 

Steel has been meticulously chosen as the nozzle frame. It has all the properties required for a good nozzle body. It has excellent mechanical properties at high temperature. It means that the nozzle will stay strong, no matter the pressure generated by the extruder. This is a very critical parameter as the assembly reliability depends on the mechanical joint between the tungsten carbide insert and the nozzle frame.

Not only steel is strong, it’s also very thermally stable. It has the lowest coefficient of thermal expansion (CTE) from the standard materials used as nozzles. While tungsten carbide has a lower CTE, it is critical to opt for a similar value, as it reduces the gap created by the temperature increase. 

The steel thermal conductivity might seem low compared to the other common options, but it’s actually around 3 times higher than tool steel. Also, the critical zone for thermal conductivity is the nozzle tip, where the section area is very low, and the convection cooling power is high. Fortunately, the tungsten carbide tip will provide the proper thermal conductivity, leaving the steel disadvantage behind.

 

Comparing a reference brass nozzle from Ultimaker, the tungsten carbide nozzle is much easier to extrude. In fact, the output flow can be increased by around 80% while having the same results.

 A highly flow optimized nozzle reference design can still benefit greatly from having a carbide nozzle. The example above compare both solutions, and the tungsten carbide nozzle still greatly reduce the extrusion losses.

 

 

 

Risks and challenges

We now have years of experience in 3d printer components design and manufacturing that gives us special expertise and know-how.

You can be very confident that we will deliver a high-quality product on time, as development is already on the right track and prototypes are already in our hands.

If there are any unforeseen issues or problems, we will handle them with the utmost transparency and care for you, our backers and we will give you frequent updates about product development.

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Support

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    Pledge CA$ 48 or more About US$ 37

    Super Early Bird

    One (x1) Tungsten Carbide Nozzle. Available in 0.4mm, 0.6mm, 0.9mm or 1.2mm.

    Includes:
    • Tungsten Carbide Nozzle (Single)
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    Pledge CA$ 56 or more About US$ 43

    Early Bird

    One (x1) Tungsten Carbide Nozzle. Available in 0.4mm, 0.6mm, 0.9mm or 1.2mm.

    Includes:
    • Tungsten Carbide Nozzle (Single)
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    Kickstarter Special

    One (1x) Tungsten Carbide Nozzle. Available in 0.4mm, 0.6mm, 0.9mm or 1.2mm.

    Includes:
    • Tungsten Carbide Nozzle (Single)
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    Pledge CA$ 115 or more About US$ 88

    Double Pack

    A pack of 2 Tungsten Carbide Nozzle. Any combination of 0.4mm, 0.6mm, 0.9mm or 1.2mm.

    Includes:
    • Tungsten Carbide Nozzle (Single)
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    Pledge CA$ 172 or more About US$ 132

    Triple Pack

    A pack of 3 Tungsten Carbide Nozzle. Any combination of 0.4mm, 0.6mm, 0.9mm or 1.2mm.

    Includes:
    • Tungsten Carbide Nozzle (Single)
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    Pledge CA$ 192 or more About US$ 147

    Super early bird 4 pack

    A pack of 4 Tungsten Carbide Nozzle. Any combination of 0.4mm, 0.6mm, 0.9mm or 1.2mm.

    Includes:
    • Tungsten Carbide Nozzle (Single)
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    Pledge CA$ 230 or more About US$ 177

    4-pack

    A pack of 4 Tungsten Carbide Nozzle. Any combination of 0.4mm, 0.6mm, 0.9mm or 1.2mm.

    Includes:
    • Tungsten Carbide Nozzle (Single)
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    Pledge CA$ 345 or more About US$ 265

    6-pack

    A pack of 6 Tungsten Carbide Nozzle. Any combination of 0.4mm, 0.6mm, 0.9mm or 1.2mm.

    Includes:
    • Tungsten Carbide Nozzle (Single)
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    Pledge CA$ 544 or more About US$ 418

    Wholesale Buyer (10 pack)

    A pack of 10 Tungsten Carbide Nozzle. Any combination of 0.4mm, 0.6mm, 0.9mm or 1.2mm.

    Includes:
    • 10× Tungsten Carbide Nozzle (Single)
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    Pledge CA$ 1,280 or more About US$ 983

    Wholesale Buyer (25 pack)

    A pack of 25 Tungsten Carbide Nozzle. Any combination of 0.4mm, 0.6mm, 0.9mm or 1.2mm.

    Includes:
    • 25× Tungsten Carbide Nozzle (Single)
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    Pledge CA$ 2,400 or more About US$ 1,842

    Wholesale Buyer (50 pack)

    A pack of 50 Tungsten Carbide Nozzle. Any combination of 0.4mm, 0.6mm, 0.9mm or 1.2mm.

    Includes:
    • 50× Tungsten Carbide Nozzle (Single)
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Funding period

- (30 days)