SLS 3D Printing Service.
Functional nylon, shipped fast.
Batch-ready nylon parts as a service — 100–120 µm layers, ±0.3 mm tolerance and 6 production powders, no support structures, complex geometry printed in a single run, inspected to spec in Los Angeles.
Configure your part below — we read STL geometry right in your browser, so the price updates live and nothing leaves your computer until you place the order. SLS is pre-selected; switch technology any time.
Thanks — an Additive Plus engineer will confirm your quote and lead time within 24 hours. A copy is on its way to your inbox.
Two ways to order.
Order online in minutes, or get an engineer on the phone first — either way the same team and the same QC standard carry your part through.
Order online
Most orders never need a call — upload, price, order.
- 1Upload & get an instant price. A standard mutual NDA is applied automatically before any file review.
- 2Place your order online. A free engineer DfAM check runs in parallel — we flag anything before printing. Want to move now? You can.
- 3We print, finish, QA & ship. Printed, depowdered, bead-blasted and inspected to spec on the Farsoon SLS line we run.
Talk to an engineer
For tricky geometry, optical finishes or strict medical programs — get it right the first time.
- 1Call us, or request a callback. We sign a custom NDA if your program needs one.
- 2An engineer reviews your part and sends a firm, optimized quote — with powder and DfAM suggestions to de-risk the build.
- 3Approve by web link or P.O. — into production on the same QC standard.
What is SLS 3D printing — and when to choose it.
Selective Laser Sintering (SLS) fuses fine nylon powder layer by layer with a CO₂ laser inside a heated build chamber. Because the surrounding un-sintered powder supports the part, SLS needs no support structures — so it prints complex geometry, internal channels, undercuts and living hinges other processes can’t, with near-isotropic strength and end-use-grade durability.
Choose SLS for functional, end-use nylon parts: enclosures, ducts, brackets, jigs, snap-fits and small-batch production without tooling. Layers are 60–120 µm and parts come off the machine with a uniform matte finish, ready to dye, vapor-smooth or paint. For the finest surface detail or optical clarity, SLA is the better call; for the lowest unit cost on simple parts, FDM.
No supports. Complex geometry. Functional nylon in days, not weeks.
Batch production
Automotive & industrial
Lightweight structures
Print-in-place assemblies
Sports & wearables
Medical & surgical
End-use production
Finishing & paint
SLS materials — 6 qualified nylon powders.
Six production SLS powders — PA12, PA12-GF, PA12-CF, TPU, PA11, and PP — qualified by our applications engineers with laser parameters dialed in for repeatable results. Priced by part volume, $50 minimum; full datasheets on request.
Hover over a material card to see its description and applications.
PA12 Nylon
The versatile default — tough, near-isotropic nylon for enclosures, ducts, jigs and low-volume production.
PA12-GF Glass-Filled
Glass-bead-reinforced PA12 — higher stiffness, hardness and heat resistance for load-bearing brackets and jigs.
PA12-CF Carbon-Filled
Carbon-fiber-reinforced nylon — exceptional stiffness-to-weight for drone, robotics and aerospace parts.
TPU (Flexible)
Flexible elastomer for gaskets, grips, living hinges and shock-absorbing lattices — printed with no supports.
PA11 (Bio-Nylon)
Bio-based nylon 11 — highly ductile and impact-resistant for snap-fits, clips, sports and prosthetics.
PP (Polypropylene)
Chemical- and fatigue-resistant polypropylene — watertight, weldable and the lightest SLS parts.
Sample swatches on most nylons
Order a finished swatch to check color, texture and surface before a full batch. Not sure which nylon? Our engineers will recommend one for your application.
Dialed-in parameters for every nylon.
We tune laser power, layer height and hatch spacing per powder and qualify each one — so your parts come out dimensionally repeatable, batch after batch.
SLS tolerances & build envelopes.
Real, qualified SLS specs — not marketing. Tighter tolerances and finer layers available with engineer review.
Receive parts made by people who obsess over the finish.
Every SLS order is printed, depowdered, bead-blasted, finished and inspected to spec — our team runs the print and QC, and manages specialist finishing like painting through vetted partners. The same engineer sees your part from quote to QC, so what ships is exactly what you designed — finished with real care.
Every finish your nylon part can get — priced up front.
From as-printed to painted and sealed — combine finishing steps freely; every SLS order is depowdered, bead-blasted and inspected before it ships.
Standard finish
Every SLS order is depowdered, bead-blasted and inspected to a uniform matte surface — dimensionally accurate straight off the machine.
Dyeing — black or color
Immersion dyeing gives deep, uniform through-color with no added wall thickness — black or a range of colors.
Vapor smoothing
Chemical vapor smoothing seals the porous SLS surface to a semi-gloss, watertight finish and lowers roughness.
Painting
Primed and painted in your colors — solid, metallic or custom match; area-priced from $0.04/cm² plus a color fee.
Polishing — Ra 3.2
Chemical and hand polishing to Ra 3.2 for smooth, cosmetic or paint-ready surfaces — mirror polish on request.
Bead blasting & tumbling
Bead blasting and vibratory tumbling for a clean, uniform matte finish, deburred edges and reduced roughness.
Don’t see the finish you need?
Tell us the spec — a coating, insert, threading or certification-specific process that isn’t listed — and an engineer will confirm whether we run it in-house or through our vetted partner network, and quote it with your part.
Also available: threaded brass inserts and heat-set helicoils (M2–M8). Painting needs a primer/polish pass first; finishes combine freely and are added to your quote.
SLS parts we shipped.
Printed, depowdered, bead-blasted, hand-finished and inspected in our L.A. shop.
Prosthetic sockets & surgical models, autoclave-safe
End-of-arm tooling, ~40% lighter than machined
Air ducts & intakes with no tooling
Flexible grips & wearables in one batch
Cabin brackets & clips, ductile and light
Inspection jigs & fixtures that hold ±0.3 mm
What our customers say
"Our enclosure prototypes came out so clean we used them in the client pitch straight off the printer. Crisp edges, no layer lines after finishing. The instant quote made ordering a 10-second job."
"We needed 200 nylon enclosures with living hinges — SLS printed them in one batch, no tooling and no supports. Real engineers walked us through the powder choice, not a contact form."
"Functional nylon parts with tight tolerances, batch after batch. ±0.3 mm held across every order and the matte finish is exactly what our workflow needs. Our go-to for SLS now."
served
teams
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12 reviews
Reviewed, checked, guaranteed.
QA dimensional report
Every part inspected against your model before it ships — measurements included.
Free DfAM review
A named engineer checks your file for printability before we build — on every quote.
NDA & IP protection
Mutual NDA on request before file review — standard, no extra charge.
Named engineer
One applications engineer owns your part from quote to delivery — no anonymous queue.
On-time, in-spec — or we make it right.
If a part ships late or out of tolerance, we reprint it free. Free DfAM review on every quote, and a named applications engineer on every order — with a dimensional check and a named applications engineer on every order.
A manufacturing partner — not just a marketplace.
Most "instant quote" platforms route your file to an anonymous shop and hope it comes back right. We run and calibrate the SLA / DLP systems we print on, manage finishing and QC end-to-end, and put a named engineer on every order — so quality and IP stay accountable to us.
Frequently asked questions
Don't see your question? Our team responds personally to any inquiry in under 24 hours.
Talk to us →How much does SLS 3D printing cost?
How fast can I get my SLS parts?
How accurate are SLS parts?
How strong and durable are SLS nylon parts?
Which SLS nylons do you offer?
What finishing options are available?
What is SLS 3D printing, and when should I choose it over FDM or SLA?
How big can SLS parts be?
Do SLS parts need supports?
Do SLS parts shrink or warp, and how do you prevent it?
What design rules should I follow for SLS?
Can SLS nylon parts be used for end-use production, not just prototypes?
Is SLS nylon food-safe or biocompatible?
Is my design protected?
What is the minimum order, which files do you accept, and where do you ship from?
Your part, in nylon — quoted in 60 seconds.
Upload a file, pick a nylon and see your price live. NDA on request, free DfAM review, from $50 — shipped from Los Angeles in about two days.
Full data — on the way.
We’re finalizing this datasheet and it will be published here shortly. Right now you can get the exact numbers straight from the engineer who runs the build — composition, mechanical properties and finishing routes.
Or call now +1 (747) 800-4854
Request sent.
An engineer will reach out within one business day with the full data. Need it faster? Call +1 (747) 800-4854.