In Summary
The Original Prusa SL1S SPEED is a top-tier resin 3D printer designed for professionals and serious makers who demand speed, accuracy, and reliability. With ultra-fast layer exposure, industry-leading print quality, and an open resin system, the SL1S offers a seamless workflow whether you’re crafting dental models, jewelry masters, or engineering prototypes. It’s compact, smartly engineered, and backed by the trusted Prusa ecosystem — making it a powerful addition to any digital fabrication setup.
⏩ Experience Ultra-Fast and Ultra-Detailed Resin Printing
If you’re in search of a resin 3D printer that balances lightning speed with jaw-dropping detail, the Original Prusa SL1S SPEED delivers exactly that. Designed with engineers, jewelers, dentists, and serious makers in mind, this machine combines industrial-grade performance with user-friendly features.
The SL1S is Prusa’s answer to the demand for fast, accurate, and reliable resin 3D printing at the desktop level — and it outperforms expectations.
? What Sets the SL1S SPEED Apart?
Instead of using FDM technology like many of its Prusa siblings, the SL1S SPEED is an MSLA (Masked Stereolithography) printer. This means it uses a high-resolution monochrome LCD screen and a powerful UV LED array to cure entire layers at once — offering both speed and detail that filament-based printers simply can’t match.
Let’s break it down:
- Print Speed: Layer exposure times as low as 1.4 seconds — up to 3x faster than previous models.
- Resolution: 2560 × 1620 (2K) LCD screen for sharp and accurate prints.
- XY Accuracy: As fine as 0.049 mm, perfect for tiny features in models and miniatures.
Whether you’re producing prototypes, casting molds, or precise engineering components, the SL1S keeps up with your needs.
? Designed for Long-Term Performance
Every part of the Prusa SL1S SPEED is designed with durability and reliability in mind:
- All-metal body – Ensures long-term structural stability.
- Tilt mechanism – Minimizes suction force during layer changes, boosting speed and reliability.
- Smart resin level detection – Saves you from failed prints.
- Integrated HEPA filtration system – Keeps your workspace safer and cleaner.
This isn’t just a consumer-grade resin printer — it’s a professional tool that’s accessible and maintainable.
?️ Simple, Smart Workflow with PrusaSlicer
Prusa makes slicing easy with PrusaSlicer, their own free and open-source slicing software that integrates perfectly with the SL1S. It includes built-in resin profiles and smart supports, plus updates for new resins as they are tested by Prusa.
You can also manage your prints remotely via LAN or Wi-Fi and monitor status updates — giving you full control from anywhere.
? Who Is It For?
This machine is ideal for anyone who needs exceptional print quality:
?? Educators – Demonstrate high-resolution prototypes and functional models.
? Jewelers – Print castable wax patterns with intricate details.
? Dental Labs – Create accurate dental models with biocompatible resins.
?? Engineers & Designers – Build parts where surface finish and tolerances matter.
? Researchers – Use for microfluidics, bioengineering prototypes, and more.
? Compatible With 3rd-Party Resins
Unlike some closed-ecosystem machines, the SL1S SPEED allows for full control over exposure settings, so you can use virtually any 405nm UV resin on the market — not just Prusa-branded materials.
This flexibility is a huge win for professionals who rely on specialized resin properties.
? Technical Specifications
| Specification | Details |
|---|---|
| Technology | MSLA (UV LCD) |
| Build Volume | 127 × 80 × 150 mm |
| Layer Height | 0.025 – 0.1 mm |
| XY Resolution | 0.049 mm (2560 × 1620 LCD) |
| Connectivity | USB, LAN, Wi-Fi |
| Supported Resins | 405nm UV resins (3rd-party OK) |
| Printer Dimensions | 400 × 237 × 225 mm |
| Weight | 4.5 kg |
✅ Why Choose the Prusa SL1S SPEED?
✨ Unmatched speed for professional resin workflows
? Smart features like resin detection and remote monitoring
?️ All-metal design built to last
? Incredible precision for micro-detail work
? Open system compatible with a wide range of resins
? Backed by the trusted Prusa community and support
