What materials can be used for MJF 3D printing?
RYSE 3D runs three MJF (Multi Jet Fusion) production polymers: PA 12, the watertight volume workhorse; PA 11 Gen2, an impact-tough bio-based nylon; and TPU 01, a flexible elastomer. Each is chosen by the job — rigid, ductile or elastic.
What is MJF (Multi Jet Fusion) 3D printing best for?
Production. MJF fuses whole beds of parts at once with no supports and no tooling, so the 300th part matches the first and cost per part falls as the bed fills. It suits functional end-use parts, low-volume production, enclosures, ducting, snap-fits and lattices.
Which MJF material is the toughest?
PA 11 Gen2 — 52 MPa tensile with 35% elongation and 6.0 kJ/m² notched impact, nearly double PA 12. It bends and takes hits without breaking, which is why it’s the pick for snap-fits, living hinges and clips. It’s also bio-based.
Do you offer a flexible MJF material?
Yes — TPU 01, a Shore A 88–90 elastomer with 291% elongation, 61 kN/m tear resistance and 63% rebound. It suits lattices, cushioning, grips, seals and flexible end-use parts.
Is MJF suitable for production volumes?
Yes — it’s what MJF is for. We nest whole 380 × 284 × 380 mm beds, turn parts around in 5–7 days printed, finished and inspected, and our instant online quote prices from 1 to 100,000 parts with no tooling and no minimum order.
What finishes are available on MJF parts?
Bead-blasted grey as standard, through-dyed black that won’t chip or flake, and vapour smoothing that seals the surface to a semi-gloss skin. All finishing happens in-house with no third party in the chain.
Where can I find MJF material properties and datasheets?
Headline properties for all three materials are on this page, and full figures are confirmed with your instant online quote or available on request.
How do I order MJF parts in the UK?
Upload your CAD to our instant online quote and pick PA 12, PA 11 Gen2 or TPU 01. As a UK 3D printing service bureau we print, dye, smooth and inspect in-house in Shipston-on-Stour, Warwickshire, and ship UK-wide.
How does MJF 3D printing work?
Multi Jet Fusion spreads a thin layer of nylon powder across the bed, then an inkjet carriage passes over it depositing a fusing agent where the part cross-section sits and a detailing agent around its edges. Infrared lamps sweep the bed and the treated areas fuse in a single pass. The bed drops, a fresh layer is spread, and the cycle repeats. Because whole layers fuse at once rather than being traced point by point, builds are fast and consistent across the bed.
Does MJF 3D printing need support material?
No. Parts sit in a cake of unfused powder that supports the geometry as it builds, so overhangs, undercuts, internal channels and captive moving assemblies all print with nothing to remove afterwards and no support witness marks on the surface. Complex geometry costs nothing extra — the price is driven by how much of the build volume the part occupies.
What colour are MJF 3D printed parts?
MJF parts come off the machine grey and are bead-blasted as standard. From there most production work is through-dyed black, which penetrates the surface rather than coating it, so it will not chip at edges or change part dimensions. Parts can also be vapour smoothed to a sealed semi-gloss skin. We do not offer colour dyeing — grey and black are the range.
What is the largest MJF part you can print?
Our MJF build envelope is 380 × 284 × 380 mm in one piece. For larger parts we split the geometry, print the sections, bond them and inspect the finished assembly — or move the job to SLS, where carbon-filled PA12-CF runs up to 490 × 490 × 740 mm, or FDM at 500 × 500 × 900 mm in a single piece.
Are MJF parts watertight?
PA 12 prints watertight, which is why it is our pick for fluid housings, sealed enclosures and closed-volume ducting — no secondary sealing operation needed. Tell us the pressure the part has to hold and our engineers will confirm whether it is suitable before you commit.
Is MJF or SLS better for my part?
Both fuse nylon powder and both print without supports, so the decision comes down to material and finish. Choose MJF for repeatable production batches, a through-dyed black finish and consistent fine detail across the bed. Choose SLS for the wider material range — PA11, glass- and carbon-filled grades and TPU 90A — for greater ductility, and for parts too large for the MJF bed. Send the CAD and we will tell you which one we would run it in.
How can I make my MJF order cheaper?
MJF prices on the share of the build volume your parts occupy, so the more densely the bed nests the lower the cost per part. Order the full quantity in one build rather than in repeat small batches, hollow or lightweight solid sections where the design allows, and send parts that pack together well. Our engineers nest the build for you — upload the CAD and the volume pricing is calculated automatically.
How long does MJF 3D printing take?
Typically 5–7 days, printed, finished and inspected. That covers the build itself, cooling and depowdering, then bead blasting, dyeing or vapour smoothing as specified, all in-house at our ISO 9001 facility in Shipston-on-Stour, Warwickshire. If you have a fixed date, tell us on the quote and we will confirm what is achievable.
