Stacker S2 Industrial Grade 3D Printer

$9,999.99 $6,999.99

Available on backorder

What is the S2? Simply stated, the new S2 is a more compact and affordable version of our popular S4 printer.  The S2 is a heavy duty, go anywhere, built like a tank 3D printer that makes Industrial quality affordable for everyone.

  • Dual Print Heads for 2X Print Speeds
  • Huge Build Volume
  • Amazing Print Quality
  • Works with almost any Filament
  • Includes Simplify3D Software ($150 value)
  • 2 Year Limited Warranty
  • 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 new Stacker S2 printers will start shipping in May.  Did you miss us on Kickstarter?  Contact Pat at for a special post-Kickstarter deal.

Available on backorder

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  • 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.
  • Huge Build Volume. With a single head, S2 can print parts up to 390mm x 315mm x 525mm.  The build area is over 15″ x 12″ and 21″ tall.
  • 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 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 2.2kg 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.
  • 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 build 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 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 390mm x 315mm x 525mm)
  • S2 is optimized to use filaments by 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 S2 has 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
Machine Type: Cartesian Robot
Firmware: RepRap Repetier
Build Volume: 390mm (X), 315mm (Y), 525mm (Z)
Print Speed: 1-250mm/sec
X/Y Movement Speed: 0 to 250mm/sec
Positional Accuracy X/Y: 6 microns
Positional Accuracy Z: 4 microns
Layer Resolution: 0.1mm to 1.00mm
Number of Extruders: 2
Extruder Temperature: Up to 300°C
Heated Bed Temperature: Up to 115°C
Nozzle Diameter: 0.40mm
Optional Nozzle Diameters: 0.25mm, 0.50mm, 0.60mm, 0.80mm, 1.00mm
Filament Size: 1.75mm
Printed Materials: Filaments which extrude at temperatures below 300°C
Power Requirements: 100-240VAC 8.5AMP
Power Supply: 1000 Watt
Internal Voltage: 24VDC/5VDC
Recommended UPS Size: 1500VA or greater
Default Baud Rate: 250000
Software Licenses Included: Simplify3D and StackerRUN
Weight: 165 lbs (75 kg) excluding filament
Dimensions: Width 24″, Depth 31″, Height 47″

User Guide Coming Soon

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

Weight 276 lbs
Dimensions 32 x 28 x 48 in