MJF Lightweight 3D Printing Service

Produce strong, lightweight Multi Jet Fusion (MJF) parts for UAVs, drones, robotics, and aerospace applications. With HP MJF technology, you can reduce weight, consolidate assemblies, and move from prototype to production without tooling. 


What is MJF Lightweight 3D Printing?

This manufacturing process leverages the latest HP Multi Jet Fusion technology to produce strong, lightweight parts without tooling. Combined with technical expertise in part design and machine parameter optimisation, it enables complex, weight-optimised geometries and a seamless transition from prototype to production—making it ideal for applications such as UAVs, robotics, and aerospace. 

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Why Choose MJF Lightweight?


Lightweight, high strength

Design lightweight structures with complex geometries, lattice features, and thin-wall designs. Optimised airframes under 500g for 1.5m wingspans help drones fly longer with larger payloads.

Eliminate tooling costs 

Move quickly from prototype to production without injection mould tools, and reduce upfront cost and lead time. 

Scale production on demand 

MJF supports scalable production with the ability to produce tens of thousands of parts annually and high daily output in production environments.

Simplify assembly 

Mechanical assembly of the final drone can be completed in under 30 minutes for optimised builds.  


Accelerate development 

Use the same material and process from prototype to production to enable rapid design iterations and faster launches. Iteration cycles take days instead of weeks. 



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Submit a form to get fast pricing, manufacturability feedback, and expert MJF production support from Protolabs.

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Proven Performance at Scale


Capability Proof point 
Minimum feature capability  Thin walls down to 0.5 mm 
Lightweight UAV benchmark  <500 g airframe for 1.5 m wingspan 
Assembly benchmark  <30 min mechanical assembly 
Quadcopter output benchmark  >200 drones/day 
Annual output benchmark  >60,000 drones/year per printer 
Cost benchmark  Airframe estimate from $7.65 internal production 
Injection moulding breakeven  Approx. 6,130–21,429 units depending on part 



MJF Lightweight vs. Traditional Manufacturing 


Comparison with foam 

MJF can deliver foam-like lightweighting with better durability, improved design freedom, and more premium finishes. Foam can require reinforcement above 40 cm wingspans, according to HP’s UAV paper.  

Compared with carbon fibre 

Carbon fibre offers high strength, but often comes with higher labour, tooling, and scalability challenges. MJF supports lightweight production with faster iteration and reduced assembly complexity. 

Comparison with injection moulding 

MJF eliminates the need for mould investment and is cost-effective for prototyping, bridge production, and mid-volume manufacturing. HP’s example shows that injection moulding reaches breakeven only after thousands of parts. 



MJF Lightweight 3D Printing Applications


UAVs and drones 

Lightweight airframes, motor mounts, electronics housings, payload structures, camera fairings, and aerodynamic covers. 

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Aerospace and advanced engineering 

Complex geometries, consolidated assemblies, and weight-optimised parts for demanding applications. 

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FAQs

What is MJF lightweight 3D printing used for?

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MJF lightweight 3D printing is used to produce strong, lightweight parts for applications such as UAVs, drones, robotics, and aerospace. It’s ideal for functional prototypes, end-use parts, and low- to mid-volume production. 

How does MJF help reduce part weight?

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MJF enables thin walls, internal structures, and part consolidation, allowing engineers to remove unnecessary material while maintaining strength. This results in improved strength-to-weight ratios compared to traditional manufacturing. 

Is MJF suitable for production or just prototyping?

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MJF is suitable for both prototyping and production. It uses the same materials and processes across all stages, allowing a seamless transition from prototype to end-use parts without the need for retooling. 

How does MJF compare to injection moulding?

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Unlike injection moulding, MJF doesn’t require tooling, which reduces upfront costs and lead times. It’s more cost-effective for low- to mid-volume production and enables faster design changes. 

What are the advantages of MJF for drone and UAV parts?

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MJF allows for lightweight airframes, integrated components, and complex aerodynamic designs. It also reduces assembly time and enables faster iteration, helping to improve overall performance and time-to-market. 

What volumes is MJF best suited for?

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MJF is ideal for low- to mid-volume production, typically ranging from a single part up to tens of thousands of units - without the need for tooling. 

How fast is MJF 3D printing?

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MJF enables rapid production and iteration. Parts can be produced in days, and designs can be quickly updated without delays from tooling or setup changes.

Can MJF parts replace traditionally manufactured parts?

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Yes, MJF parts are often used as end-use components and can replace parts made with injection moulding, machining, or foam, depending on the application and requirements.