STEPCRAFT-2/840 Construction Kit

STEPCRAFT-2/840 - Desktop 3D System


  • Universal CNC model-making machine for creative modellers
  • Turn your ideas into machined products in no time 
  • Stable, compact, accurate and fast
  • Various accessories available
  • Various materials can be processed
  • As a kit easy and quick to assemble. Only screwed together - done!
  • Complete equipment
  • Reliability and durability due to high quality components
  • Compact and space-saving machine design
  • Easy connection to PC
  • Made in Germany with warranty



The universal Desktop CNC/3D System to live your ideas

Become an expert

Become an expert and customize computer based workpieces to real models. With a suitable drawing program, such as CorelDRAW ®, the open source software Inkscape or a CAD-software, you can create a work file which can be processed by the Desktop CNC/3D System: Accurate, efficient and reproduced as often as you want. The workpiece materials are virtually unlimited: Using the STEPCRAFT 840 and optional accessories, materials like wood, thermoplastics (PS (polystyrene, such as Styrofoam ®, EPS, Depron ®, Selitron ®), ABS, PE (polyethylene), PP (polypropylene e. g. EPP) soft/hard PVC, Lexan ®, polyamide, Plexiglas ®), some elastomers / thermosets, mixed materials, such as DIBOND ® or electronic boards, to Carbon and non-ferrous metals (aluminum, brass or copper), can be processed.

Excellent quality at a fair price

The STEPCRAFT aluminum profile series has been developed in order to ensure sufficient accuracy and stability of the machine. It consists of two different linear track profiles and the cover profile. All other connecting elements consist of aluminum or stainless steel and together with the profiled structure they ensure the required rigidity. The stepper motors from Nanotec® have been carefully selected and specifically adapted to exactly fit the machine. The electronics have been specially designed to match the characteristics of the motors so that sufficient power for a reliable operation of the 3D system is ensured. The control software WinPC-NC has been developed by the engineering office Lewetz and has been selectively reduced in its range of functions in order to meet the needs of a beginner. It comes as a "Starter" version with the Desktop 3D System.

Notice: The Starter version is optimally suited for beginners. Advanced applications (e. g. 3D print, Laser) require the full version of WinPC-NC or UCCNC.

DIY kit or ready built machine

The machine is available as a DIY kit or as a directly operational system. If you opt for the kit, you save money. The construction of the machine is designed so that you can simply build up the machine within a few hours without any special tools. Only screw together - done! The EasyBuild installation instruction needs (almost) no text. The step-by-step instructions are based on chronologically numbered instruction steps with graphic images of all intermediate steps. The last section always shows the finished assembly so that you can easily check your own result.

Complete Equipment

The machine, whether as a DIY kit or ready built machine, is supplied with all necessary components for operation: All necessary mechanical and electronic components, such as the power supply and the connecting cable, are included. Not included are the system-based tools.

Innovative System

The STEPCRAFT 3D System includes many practical innovations that improve or simplify the work with the system: Stable STEPCRAFT profile system, integrated workpiece clamping system, easy adjustable clearance of the linear guides, seals for protection against dirt, integrated / modular control electronics.


Due to the 43 mm collar a wide range of tools can be used. With optional adapters, you can also use Proxxon or Dremel tools as drilling-/milling spindles directly. Other drilling-/milling spindles up to a power limit of 500 watts can also be used. Other system-guided tools, such as a drag knife, engraving needle or hot cutting system can be used optionally.
With the parallel interface of the STEPCRAFT 3D System many CNC softwares, such as EMC2, Mach 3 and more, can be used.

Delivery Contents

  • Complete DIY kit including all mechanical and electronic components
  • Beginner software WinPC-NC starter (enables 2.5 dimensional operation) to control the machine via USB-interface (no software is included with the parallel version)

  • USB- or parallel cable connection
  • Operating and assembly instructions EasyBuild


  • Individually designed and manufactured, STEPCRAFT basic profiles provide the necessary torsional rigidity and functionality
  • Connecting elements made of stainless steel or aluminum
  • 6-point ball bearing carriage on all axles/linear profiles
  • Play-free movement of the carriages (continuous adjustability, freely accessible externally without disassembly)
  • Round-thread spindle with precision spindle nut from wear-resistant brass
  • Working with at least 3000 mm/min feed
  • Inspection covers on the Y-axis for maintenance and care
  • Silicone sealing profile for protecting the mechanism from dirt on the Y-axis
  • Worktop made of wear-resistant HPL, optional aluminum T-slot plate
  • Quick-change system for the exchange of the worktop, e. g. for the installation and exchange of offering-worktops without loss of working space
  • Integrated workpiece clamping system for plate materials with a thickness of up to 15 mm
  • Flexible tool holder through Ø 43 mm clamping collar, optional adapter elements are available for M19 x 2 mm (Dremel) and Ø 20 mm (Proxxon)
  • Integrated control electronics in the machine housing, thus only one connecting cable from the machine to the computer
  • Modular control electronics with standard USB port. Parallel port and 4-axis are optional
  • Stable value and optical preservation through easy-care and wear-resistant surfaces (powder coating, anodizing)
  • Compact size of the desktop system
  • Easy build construction manual shows using pictures detailed step-by-step assembly of the CNC/3D Desktop System within a few hours
  • Reputed control software that has been specifically designed with regard to the needs of a first-time user with respect to its functionality range
  • Compatibility of the machine for each NC control software
  • Delivery as an assembly kit saves time and money (the delivery as finished machine is optional)
  • Made in Germany
  • 2 years warranty

Add-on options

  • Worktop made of aluminum T-slot plate
  • Parallel-Port-module (connection of the computer via LPT1)
  • 4th axis module (possible with WinPC-NC Economy)
  • Tool adapter 43/20 mm (Proxxon)
  • Tool adapter 43/19 x 2 mm (Dremel)
  • Different software

Required tools

  • Slotted screwdriver 3 mm
  • Allen wrench 1,5, 2,0, 2,5, 3,0, 4,0 and 5,0 mm
  • Spanner 7 mm and 8 mm
  • Long-nose pliers
  • Slide gauge
  • Cutting knife

System requirements

  • PC with 1 GHz processor
  • USB-interface
  • Windows® XP, Windows Vista™, Windows® 7/8, Windows® 10 (32/64 bit)
  • MAC OS X 10.3.9 or higher with Windows® emulation

Additional Info

  • Clamping surface (X Y): 615 x 920 mm / 36.2 x 24.2 inch
  • Working space (X Y Z): 600 x 840 x 140 mm / 33.1 x 23.6 x 5.5 inch
  • Passage height: 175 mm / 6.89 inch
  • Torsional stiffness (20N) (X Y Z): 0,07 mm - 0,12 mm / 0.028 - 0.047 inch
  • Repeatability: +/- 0,05 mm = +/- 0.002 inch
  • Programmable resolution: 0,005 mm = 0.0002 inch
  • Backlash: approx. 0,08 mm / 0.003 inch(with software adjustable to 0,00 mm)
  • Speed: 3000 mm/min = 118.11 inch
  • Spindles: Round-Thread-Spindles 10x3
  • Linear guides: STEPCRAFT Aluminiumprofile (EN AW-6063 T66) with roller guides
  • Motor: Stepper motors
  • Tool clamp: Ø 43 mm (optional smaller diameters)
  • Overall size (LxBxH): 968 x 745 x 510 mm / 38.1 x 29.3 x 20.08 inch
  • Weight: 31 kg
  • Working plate: HPL
  • Color: STEPCRAFT orange, Aluminium, white
  • Input voltage: 100 – 240 V
  • Output voltage (motors): 30 V
  • Power consumption: 90 W
  • Interface: Parallel / USB
S2-840 Product Version Interface
Availability: ja / yes Usually ships in: 5 working days
1499,00 €
Sales price 1499,00 €
Sales price without tax 1259,66 €
Tax amount 239,34 €
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SKU 10162
Vendor Stepcraft GmbH & Co. KG
Manufacturer STEPCRAFT
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