Stacker S2 Industrial Grade 3D Printer

The all new S2 printer sports a huge build volume and independently controlled print heads. The S2 was specifically designed for dual material prints, especially soluble support. The S2 can also be used for making two of the same parts at once. All these features make the S2 the most versatile printer we make. The S2 is a true industrial grade machine built for years of service, and all for a very affordable price.

View Print Samples

  • Dual Independent Print Heads for 2X Print Speeds and Fast Tool Changes
  • Huge Build Volume
  • Amazing Print Quality
  • Works with almost any Filament
  • Made in the USA

Jerry LePore has been testing the performance of our S2, and here is what he had to say:

“We now have 1,826 print hours.  The S2 is a work horse and a main player in our daily production.”

-Jerry LePore

The STACKER S2 Printer ship within two weeks of order.



In stock


  • 2X Faster Print Speeds. STACKER’s multi-part printing technology allows you to print two copies of the same part, at the same time, in different materials or colors. Why limit yourself to one part at a time when you can get two? With multi-part printing, it’s like having two 3D printers in one.
  • Independently controlled print heads make tool changes fast and easy. Perfect for soluble support or dual material prints
  • Copy and Mirror Mode. Print two of the same prints at once, or mirror them for special applications.
  • Filament drives are directly mounted to the print heads for more accurate extrusion, and faster print times with flexible filaments.
  • Our new firmware uses a hot end pressure balancing system to eliminate blobbing on the corners and z seams.
  • Large Build Volume. 490mm X axis, 390mm Y axis, 650mm Z axis.
  • Superior Positional Accuracy: The S2 uses top quality linear motion components and a precision acme screw to achieve superior positional accuracy and repeatability.
  • Universal Filament Rail. Although STACKER printers are optimized for I-BEAM and colorFabb filaments, our universal filament rail accepts any filament on the market. Unlike most commercial printers that gouge you with high priced materials, STACKER will accept market rate filaments, and this keeps your printing costs affordable. Our universal filament rail is designed for easy and fast loading of your filament spools. The “U” channel design fits all popular spool sizes. It is strong enough to support four 2.2 to 4.5kg spools for longer prints.
  • Prints a Wide Array of Materials: When it comes to filament, the Stacker S2 can print almost any 1.75mm diameter filaments which extrude at temperatures below 300°C. From flexible to composite materials like copper, wood, steel, brass, bronze, or carbon fiber, to everyday materials like PLA, Stacker S2 can print it. This means you can utilize the latest innovations in filament technology today and in the future.
  • Industrial Grade Motors. Stepper motors are a key component in any 3D printer. STACKER only uses high quality industrial grade stepper motors.
  • Quick Change Nozzles: STACKER nozzles can be changed in less than a minute. Why restrict yourself to one nozzle size when you could print faster with a larger nozzle? Moreover, our nozzles are constructed of a special grade of stainless steel which dramatically improves nozzle life when using composite filaments like copper, brass, bronze, steel, or carbon fiber XT-CF20 filament by colorFabb.
  • Accepts our new High Output hot ends with hardened steel nozzles. If you intend on running a lot of carbon or glass fiber filament, you must purchase this upgrade. Please contact Sales for more info.
  • Slicing software: Compatible with all popular slicers, like Simplify3D, CURA, Slic3r (including PrusaSlicer and SuperSlicer fork), Repetier (Slic3r and Cura engines), IdeaMaker, MatterControl, etc.
  • Kinetic and Powerful Design. The STACKER S2 is not a flimsy plastic desktop printer. Weighing in at over 160 pounds, it is an Industrial machine. It’s built with a rock solid frame and an open air design that allows users to see everything. There are no false bottoms or plastic panels to hide sloppy wiring and messy electronics. Everything is out in the open for easy accessibility. The open design makes it easy to modify your machine to suit your exact needs. STACKER is perfect for use as a development platform or for alternative printing technologies.


STACKER offers a number of benefits over most other commercial 3D printers.

  • S2 is versatile and perfect for dual material prints
  • S2 is affordable
  • S2 can print two parts at one time, making it at least 2x faster than most other printers
  • S2 accepts hundreds of different filaments in hundreds of colors, including our high tech composites, like carbon fiber
  • S2 filament is market priced, not proprietary and overpriced
  • S2 has a huge build volume (max print size is 490mm x 390mm x 650mm)
  • S2 is optimized to use filaments by I-BEAM and colorFabb which are very low odor, highly functional, and safe to use in any environment, a must for busy offices and schools
  • S2 has no service contracts
  • S2 is highly mobile
  • S2 fits into any workplace environment

STACKER was purposely built and priced for tech labs, colleges, busy offices, maker spaces, print/prototype shops, manufacturing plants, and most other kinds of businesses. Now, more professional creators have access to fast, reliable, and affordable 3D printing. From Prototype to Production™ the S2has you covered.

What makes STACKER industrial grade?

STACKER stands above the rest by providing optimum chassis design, gantry, and high-quality components.

The Chassis

S2 relies upon high strength steel instead of plastic and composite frame parts. Our steel frame construction ensures your S2 will remain accurate for the life of your printer and far less susceptible to seasonal changes in humidity and accidental damage. It also means you can drill a hole into your machine and make other modifications without voiding the warranty or weakening the structural integrity. All of the components are powder coated for durability, and it makes your S2 look amazing!

Printer Specifications

  • Product Name: Stacker S2 (all new 2020 model)
  • Type: FFF (Fused Filament Fabrication)
  • Number of Extruders: 2 Independently Operated
  • Filament diameter: 1.75mm
  • Build Volume: 490mm (X), 390mm (Y), 650mm (Z)
  • Nozzle Diameter: 0.40mm
  • Available Nozzle Diameters: 0.25, 0.40, 0.50, 0.60, 0.80, and 1.00mm
  • Extruder Temperature: up to 300° C
  • Printed Materials: Filaments which extrude at temperatures below 300°C including, but not limited to, PLA, ABS, HIPS, Nylon, PVA, PET, PETG, TPE, TPU, PC, and all colorFabb filaments including XT-CF20 (Carbon Fiber), XT (Co-polyester), PLA-PHA, WoodFill, BrassFill, CopperFill, BronzeFill, and SteelFill.
  • Positional Accuracy for X/Y: 6 microns or .00023”
  • Positional Accuracy for Z: 4 microns or .00015”
  • Layer Resolution: 0.1mm to 1mm
  • Print speed: 0 to 100mm/s
  • Travel speed: 0 to 120mm/s
  • Build Plate: aluminum bed with glass overlay
  • Heated Bed Temperature: up to 115°C
  • Power Supply: 1000 Watt
  • Internal Voltage: 24VDC/5VDC
  • Recommended UPS Size: 1500VA or greater
  • Connectivity: USB and SD card, optional Raspberry Pi for CAT5 and wireless connectivity
  • Power supply inputs: (1) 100-240VAC 8.5A
  • Operating temperature range: 50-100°F (10-38°C)
  • Operating Noise: 35 to 60 dB

Software Specs

  • Included Software: StackerRUN (a custom version of Repetier Host)
  • Recommended Software: Repetier Server
  • Supported file types: STL, OBJ, AMF

Physical Printer Specs

  • Width: 720mm (28.3″)
  • Height: 1100mm (43.3″)
  • Depth: 900mm (35.4″) (with filament rail and 1kg roll of filament)
  • Weight: 68kg (150lbs) (bare machine with no filament)

Shipping Crate Specs

  • Crate is Heat Treated (ISPM 15 compliant)
  • Length: 876mm (33″)
  • Width: 762mm (33″)
  • Height: 1382mm (54.5″)
  • Weight: 154kg (340lbs)

CE Certification

The information below reflects shipping weight and dimensions (if applicable)

Weight 276 lbs
Dimensions 32 × 28 × 48 in