Our award-winning FDM 3D printers Original Prusa i3 received universal acclaim in all corners of the world. Now, it's time to do the same with SLA technology.
Original Prusa SL1 is a open-source SLA 3D printer based on the MSLA printing process. Unlike Original Prusa i3 machines, this printer uses a high-resolution LCD panel and a UV LED to cure thin layers of resin to achieve an unprecedented level of detail.
The most significant features of Original Prusa SL1
The SL1 is using a 5.5’’ high-resolution LCD display with the physical resolution of 2560×1440p, resulting in 0.047mm per pixel, that’s the fixed XY resolution. Thanks to Trinamic drivers and rigid dural frame, the SL1 can reach layer height of just 0.01 mm. But most users should stay within the recommended range of 0.025 - 0.1 mm per layer.
MOTORIZED TILTING BED
The resin tank has a motorized tilt function, which means that after curing a single layer, the print is not lifted vertically from the bottom of the tank. Instead, the tank tilts - this has three major benefits: stiring the resin to improve print quality, easy separation of large layer areas and much faster printing.
HIGH SPEED PRINTING
A high-performance UV light will cure one layer at a time, which takes about 6 seconds and then the printing platform is lifted, so the printer can start creating another layer. This configuration gives us a maximum print area size of 120 × 68 × 150 mm (or 4.7 × 2.6 × 5.9 in.).
FLEXIBLE FEP FILM
Removable resin tank of SL1 has a flexible transparent FEP film on the bottom. FEP material is cheap and we will have spare parts available through our eshop. In case you scratch or damage the FEP film in any way, the replacement is actually pretty easy - just unscrew a couple of screws, remove the damaged film and insert the new one.
You don't need to calibrate before every print! The printing platform is connected to the main arm by a ball joint so if you loosen it and start the automatic calibration, the motor with a trapezoidal rod will lower the printing platform until it gently hits the bottom of the resin tank.
we are using a pretty smart design for the printer: its core is a rigid dural frame with a separate body, which greatly improves stability and reliability. To put it simply, it’s not another wobbly plastic thing. This thing is HEAVY! :)
RESIN LEVEL SENSOR
SL1 features a unique resin level sensor, which is located in the resin bed (also called ‘tank’). It helps you to pour the optimal amount of polymer into the tank and it also notifies you when the resin is running low and needs a refill, which prevents the situation when you would run out of resin mid-print.
SL1 features a sophisticated cooling system and also a vapor extraction system. If you didn’t know, printing with SLA produces various fumes, so that’s also why the printer has a lid. However, a good airflow is also important, so the printer has a fan with a high-quality filter at the back of the machine.
The whole device is controlled by a full-color LCD touchscreen and the G-codes can be uploaded via a USB flashdrive. However, there is also LAN and Wi-fi connectivity, which allows us to do some cool things apart from uploading G-codes - like enabling you to control the printer via a web browser. Even on your phone!
Check out the official announcement video!
Read more about features of our brand new Original Prusa SL1 in the article at PrusaPrinters.org
THE INTERNET ABOUT SL1
MAKE US QUICK LOOK
Caleb from MAKE: magazine takes a quick look at our Original Prusa SL1 and CW1. Instead of doing a regular review, he is trying to answer one simple question: 'Why would you buy anything other than the absolute cheapest SLA 3D printer?' Watch the video...
CHIP (DE) REVIEW
"The Prusa Research Original Prusa SL1 3D Printer offers pure print quality and is ideal for delicate objects. It is also convincing in terms of ergonomics and workmanship and the printing costs are at a good level." Read more...
TECH LEGEND REVIEW
"Original Prusa SL1 is a real plug-and-play 3D printer. (..) The whole printing process is easy and generally hassle-free, which is a lot different from typical SLA printers, that require a lot of manual tweaking. The SL1 just works.” Watch the video...
"The Original PRUSA SL1 is an outstanding printer, not just for the price, but for usability and quality. If you're a jeweller, high-end modeller, need to prototype or are a dentist, then the SL1 is a great solution.” Read more...
WINDOWS CENTRAL REVIEW
"The SL1 is a superb printer made by a company that knows how to craft a compelling and efficient machine. The little finishing touches like the resin sensor elevate it above its peers, and the print quality is near perfect. The CW1 curing station in the bundle is stunning, and it makes working with resin a joy instead of a chore." Read more...
- SLA system: LCD and UV LED
- Supported materials: UV sensitive liquid resin, third-party resins supported
- 3D printer dimensions: 15.7×9.3×8.8 in / 400 × 237 × 225 mm
- Print area size: 4.7×2.6×5.9 in / 120 × 68 × 150 mm
- LCD display: 5.5’’
- Recommended layer height: 0.025–0.1 mm (variable layer height available)
- Minimum layer height: 0.01 mm
- UV Wavelength: 405nm
- Size of a pixel (Resolution): 47um in XY axes
- Light intensity: cca 990mW/m2
- LED Power input: 25W
- Connectivity: USB, Wi-Fi, LAN, Touchscreen LCD controls
- Speed: 6 seconds per layer, independent of layer size
LIST OF FEATURES
- One-time automatic calibration with quick-release printing platform
- Motorized tilting bed - prevents layer shifts, stirs the resin, enables faster printing
- Resin tank with flexible FEP film - easy and cheap replacement
- Silent operation thanks to Trinamic drivers with auto-homing function
- Advanced LCD cooling system improves performance and extends the life of internal components
- Safety features: Power Panic, resin level sensor, vapor extraction
- Smart features and connectivity: LCD touchscreen, USB, Wi-fi, LAN, online monitoring via a web browser, PrusaSlicer software
- 500ml bottle of resin included
- External curing and washing machine (sold separately or in the bundle)
The pre-assembled Original Prusa SL1 printer is covered by a 24-month warranty for end customers in the EU and 12 months for businesses and non-EU customers.
The Original Prusa SL1 assembly kit provides a 24-month warranty on the functionality of individual parts for end-users in the EU and 12-month warranty for businesses and non-EU customers.
Wear and tear category components and consumables are excluded from this warranty. The warranty period begins with the day when the customer receives the goods.
WARNING: The exposure display and the FEP foil fall into the category of normal wear and tear components, which are not covered by our standard warranty. Instead, the warranty of the exposure display covers a maximum of 500 hours of printing - the SLA 3D printing process on the Original Prusa SL1 is considered the standard way of using and wearing the original display. The warranty of the FEP foil covers 10 cycles (print jobs). When used properly in accordance with the instructions in the official guides (such as this handbook), the life expectancy of the FEP foil is several times longer.
Neither the Seller's liability for defective products nor the quality warranty applies to printers or parts damaged by handling, which is in conflict with the instructions and recommendations in the official manuals and guides, or improper handling caused by unofficial modifications, such as modifications to hardware or software.
Original Prusa Curing and Washing Machine (CW1)
Original Prusa Curing and Washing Machine (CW1) is a standalone and recommended accessory for the Original Prusa SL1.
The CW1 is a multi-purpose device, which takes care of pre-printing and post-processing tasks: preheating the resin before printing, and also washing, drying and curing the printed model. This all-in-one device with well-built compact body with smart design makes resin 3D printing a much more comfortable and efficient process.
Objects printed from liquid resin are usually a bit soft and sticky. To clean them and give them optimal surface properties, the objects need to be washed, dried and cured. This process involves washing the object in isopropyl alcohol, drying using hot air and curing using UV light. The Original Prusa Curing and Washing Machine (CW1) can take care of all these actions in 10 minutes.
The most significant features of Original Prusa CW1
RESIN PREHEAT (coming soon)
Resins tend to change their state while being stored, that is the reason to shake the bottle with resin well before printing. However, CW1 can also preheat the resin before printing it, thus getting it to the ideal printing temperature and state for the best performance of the SL1 and the resin itself. We are just testing this feature which is to become available in the upcoming firmware update.
The finished print has to be washed to remove the uncured resin from its surface. CW1 uses a stainless steel tank for isopropyl alcohol and a magnetic propeller. The magnetic propeller movement stirs the liquid, so it gets to every part of the model. This method is less aggressive compared to ultrasonic cleaning and works very well even with very small objects.
Drying a washed model is yet another feature of the multipurpose CW1. Before the washed model is cured with UV-light, it has to be dried in order to avoid resin residue stains.
Curing the model with UV-light is an essential part of the resin printing process. Printed objects are usually soft, so treating them with UV light gives them optimal surface properties.
CW1, unlike most of the other resin printing accessories, combines 4 important features in a single device. Even though it’s a multi-purpose device, it’s very compact (smaller than the SL1) and saves you a lot of space in your workshop.
EASY TO USE
CW1 was designed with user comfort in mind. The IR sensor detects whether the liquid container is present in the device and displays the set of functions to choose from accordingly. CW1 simply knows what steps to take in advance :)
- 4 UV LED strips to cure the printed models
- UV LED wavelength: 405 nm
- Max power of the UV LED: 52,8 W
- EEE group: 3 (IT and/or telecommunication equipment)
- Power supply: Input 100-240VAC, 50/60Hz, 2.0A. Output: 24V, 6.67A, 160W
- Average power consumption: 130W
- Max. working temperature range: 16 °C - 38 °C, indoor use only
- Working humidity: 85 % or less
- CW1 dimensions: 21.8 x 34.5 x 23.2 cm (D×H×W)
- CW1 box dimensions: 39 x 46 x 40 cm (D×H×W)
LIST OF FEATURES
- Resin preheat (coming soon)
- Washing using magnet driven propeller to create a vortex and wash resin residue from the print
- Dries the print after washing is done
- Cures the print using 4 UV LED strips