Original Prusa SL1S SPEED
Original Prusa SL1S SPEED
The Original Prusa SL1S SPEED is a 3D printer based on MSLA (Masked SLA) technology. Unlike our Original Prusa i3 3D printers, the new SL1S uses a high-resolution monochrome exposure display and a UV LED array that cure thin resin layers, enabling exceptional levels of detail.
Show more
The Original Prusa SL1S SPEED is a 3D printer based on MSLA (Masked SLA) technology. Unlike our Original Prusa i3 3D printers, the new SL1S uses a high-resolution monochrome exposure display and a UV LED array that cure thin resin layers, enabling exceptional levels of detail.
Show more
Introducing the Original Prusa SL1S SPEED!
Compared to the original SL1, the new SL1S offers significantly better print quality, a 25% larger build platform, and up to three times faster printing thanks to shorter exposure times per layer. Depending on the material used, exposure times can be as low as 1.4 seconds per layer. Shorter exposure times combined with a fast tilting mechanism allow printing a 150 mm tall object in just two hours.
The SL1S is an excellent choice if you need to print highly detailed objects — fast! Whether you want to produce ultra-detailed miniatures or need a reliable machine for prototyping in your workshop, the SL1S is a versatile workhorse. You can also easily upgrade your existing SL1 to the SL1S.
Key Features
Excellent Print Quality
The SL1S features a 5.96" monochrome LCD with a 2560×1620 px resolution. Thanks to the new display and fully redesigned internal components, the SL1S offers significantly better print quality than its predecessor.
Our Fastest Printer
With specially designed lenses and a completely redesigned UV LED panel, the SL1S can reduce exposure times to as little as 1.4 seconds per layer when using common 405 nm resins. This speed is ideal for small-batch production or rapid prototyping — print more in less time!
Blazing Speed, Amazing Detail
The SL1S produces even more detailed prints thanks to the 5.96" monochrome LCD with 2560×1620 px resolution. Standard 405 nm resins need only 1.4 seconds per layer. This makes it easy to print with materials that would otherwise require very long exposure times.
Premium Materials & Solid Construction
The Original Prusa SL1S is built on a heavy, rigid aluminum frame that minimizes vibrations and ensures the best possible printing performance — even when printing extremely thin and detailed objects. The SL1S uses a quick-release print platform mechanism, eliminating the need for recalibration.
For Beginners and Professionals
The SL1S can do far more than print miniatures. With print quality comparable to professional machines, extensive documentation, low operating costs, and nonstop technical support, the SL1S is a great choice for both beginners and advanced users. Its predecessor, the SL1, is actively used in professional fields — from medicine to the automotive industry.
Full Support in PrusaSlicer
The SL1S is fully supported in our in-house PrusaSlicer tool. You can utilize hollowing tools, support generation, easy model positioning, and much more. PrusaSlicer also includes extensively tested material profiles.
Touch Control, Network Features & More
You can upload print files easily through the web interface. Firmware updates are downloaded conveniently via Wi-Fi. SL1S is packed with modern features that make operation and printing easier than ever. The display guide walks you through the entire setup so you can start printing within minutes.
Open Source & Third-Party Resin Support
Just like all Original Prusa printers, the SL1S is fully open source! This means full support for third-party 405 nm resins, no proprietary vats, resins, or FEP films. You are free to purchase printing materials wherever you want!
