STōN-WoLF
Designed and built in the Czech Republic. High precision. High speed. Mildly dangerous levels of fun.
STōN-WoLF
The STōN-Wolf is built to last. No corners cut. With a 300mm build plate, a flying gantry, and a 12mm thick CNC-machined metal frame.
Powered by a 48V motion system, Klipper firmware, and an RPi CM5, it’s designed to redefine speed and quality.
Plug it in, connect via QR code or ethernet, start printing.
Proudly designed and built in the Czech Republic.
Serious question
Why buy STōN ?
Built by Hand, One at a Time
Each machine is built start to finish by a me personally. No assembly line. No shift workers. Your build number is laser-engraved in the frame. If you need support, you talk to the person who built your machine.
Fast Without the Drama
1500mm/s travel. 300-600mm/s print speed. Up to 30,000 mm/s² acceleration. But speed means nothing if the machine can’t handle it. STōN firmware lets you push to the edge of what the hardware can do — without blowing past it. Three built-in performance modes scale speed, acceleration, and cooling together. You pick the mode. The printer handles the math.
Automatic Load Cell Bed Probe
No inductive probe drift. No offset guessing. The STōN-PROBE measures actual nozzle contact force using a precision load cell. Consistent first layers, with any nozzle, any build plate. Zero added weight to the tool-head.
Stock Klipper and Mainsail. Your machine
Klipper and Mainsail. Nothing skinned. Nothing rebranded. Nothing locked down. Our custom firmware systems (Modes, Flow limiting, Homing) are optional layers on top. Turn them off and you have a clean, standard Klipper printer. Turn them on and you have something that doesn’t exist anywhere else. All open source. All yours.
Open source design
If we use open-source, it makes sense to also be open source.
No SSH. No Terminal. No Nonsense.
WiFi hotspot setup out of the box. Connect from any phone or tablet. Static IP addresses pre-configured. Add a display, change settings, enable or disable WiFi, swap antennas — all without opening a terminal. The console prints status and diagnostics in plain language. Everything survives firmware updates.
Czech Built
A beautiful country that inspires creativity and timeless design. Quality, precision, and people who give a damn. CNC frame plates milled by Martan on HAAS machines 40 minutes from Prague. Czech aluminum. Every batch inspected. Every plate measured. If it’s not flat, it doesn’t ship.
Simple by Design
No Corners Cut
Genuine Raspberry Pi CM5, made in the UK. BTT Manta E3EZ controller. TMC5160 drivers at 48V on XY. Mean Well industrial PSU. EMI-filtered power input. IEC 60445 wiring standard for worldwide compatibility. If they make a CM6 tomorrow, you can swap it in. That’s the point of open hardware.
CPAP Cooling, Low Toolhead Weight
High-output blower system pulls cold air from the rear through a contained silencer box. High pressure at the nozzle. Reduced noise. Light toolhead for high speeds and accelerations. Not silent, but effective.
Check our Youtube channel !
Specs
FRAME & STRUCTURE
• Cartesian “flying gantry” design with fixed bed
• Shorter belts than CoreXY, rigid at center of bed
• 12mm CNC-machined aluminum frame plates, Czech manufactured (ALCOM ALVAL, ALQAL 5083)
• 18mm carbon fiber composite Y-gantry with high-temperature epoxy
• 80x20mm solid rear tower bar
• Build volume: 300 x 300 x 285mm
• Optional Z-height upgrade: 600mm
• Overall dimensions: 600 x 560 x 520mm (L x W x H)
• Leg depth: 400mm, fits narrow desks
• Machine weight: approximately 20kg
• Shipping weight: approximately 28kg (with packaging)
MOTION SYSTEM
• 48V XY stepper motors, high-torque industrial grade
• TMC5160 stepper drivers on XY at 48V (4.6A max, recommended below 4A)
• TMC2209 stepper drivers on Z and E
• MGN9H high-precision, high-preload linear rails, identical lengths on XY for part simplicity
• 8mm lead screw integrated into NEMA17 stepper. 16mm Z-axis guide rods, precision ground bearings with custom black hard chrome plating
• GT 1.5 belt system, high-temp EPDM
• Travel speed: up to 1500mm/s
• Acceleration: up to 50,000 mm/s² (speed-dependent limit: 25,000 mm/s² above 1000mm/s)
• Print speed: 300-600mm/s depending on material, nozzle, and layer height
• TMC Autotune prepared if you wish to enable it
HEATED BED & BUILD PLATE
• VORON/LDO 305mm 600W heated bed, 10mm thick cast and milled aluminum
• Maximum bed temperature: 120°C
• LDO DarkRock305 professional PEI build plate
• Nozzle wiper integrated into bed assembly
HOTEND & EXTRUSION
• Microswiss custom high-temp 105W hotend with titanium heatbreak and CM2 nozzle (made in USA)
• V6-compatible nozzle system, abrasive-nozzle ready
• Maximum hotend temperature: 350°C continuous, 360°C absolute max
• High-temp thermistor
• High-temp 3010 radial blower for hotend cooling, rated for enclosed operation
COOLING
• Genuine WONSMART CPAP 7040 remote blower with silencer box
• High-pressure nozzle cooling from rear-mounted blower
• Low toolhead weight for high-speed performance
• Not silent, but effective
ELECTRONICS
• Raspberry Pi CM5, 4GB RAM, 32GB SSD, WiFi (genuine, made in UK)
• Dedicated 40mm axial fan for RPi cooling
• BTT Manta E3EZ controller board (STM32G0B1)
• 80mm axial fan for electronics bay cooling
• Mean Well industrial power supply (genuine, CE/UL/TUV certified)
• Schurter EMI/EMF filtered power input with double fuses on L and N
• Genuine OMRON solid state relay (SSR) with proper heatsink mounting
• Emergency stop switch
• IEC 60445 wiring standard (ships worldwide including USA and Japan)
• HDMI, USB-A, Ethernet ports
• RF disable jumper for WiFi/Bluetooth (EMI-sensitive or industrial environments)
CONNECTORS & WIRING
• Genuine Molex connectors throughout
• Genuine WAGO connectors for mains wiring
• Genuine JST connectors for signal and low-voltage
• No clones, ever
SOFTWARE & FIRMWARE
• Klipper + Mainsail pre-installed and configured
• OrcaSlicer profiles included, matched to STōN performance modes
• Pre-flashed, pre-configured, ready to print out of the box
• Stock Klipper, nothing skinned or rebranded
• Open source: hardware CC-BY-SA-4.0, software GPL-3.0
• GitHub: github.com/STON-PRINTERS
SETUP & CONNECTIVITY
• WiFi hotspot setup out of the box, no monitor or keyboard needed
• Connect via QR code scan from any phone or tablet
• Static IP addresses pre-configured
• Rename your printer with a custom hostname
• No SSH required, ever
• Add displays, change settings, enable/disable WiFi, swap antennas — all without a terminal
• Console prints machine status and diagnostics in plain language
• All settings survive firmware updates
• Remote monitoring via Mobileraker app
STōN FIRMWARE (all optional, all can be disabled)
• STōN Modes: PROWL (quiet/detail), HUNT (daily production), CHASE (full speed). Each mode scales speed, acceleration, square corner velocity, and fan speed together. Hard caps prevent exceeding hardware limits. LIVE_TUNE for mid-print adjustment. RAW mode removes all guardrails. Five CUSTOM slots for your own profiles.
• STōN Flow: volumetric flow limiting at the motion planner level. Set your hotend’s throughput ceiling per filament. Enforced before the move executes, not after. Disables with zero overhead.
• STōN Homing: sensorless homing with automatic retry and tolerance checking. Separate retract and homing currents. Auto-detects TMC driver type. No endstop switches to break or drift.
• STōN-PROBE: force-sensing bed probe using custom SAMD21 microcontroller and NAU7802 load cell ADC. Measures actual nozzle contact force. Five filter levels. Adjustable trigger thresholds. Two-pulse field configuration, no reflashing needed.
• Three-layer acceleration safety: mode scaling, hard caps, and Klipper’s motion planner each enforce limits independently. Fastest safe move, always.
• Safety-first print end: heaters kill with triple redundancy before park, retract, and cleanup.
• Z thermal compensation: automatic Z offset adjustment for hotend thermal expansion during probe and first layer.
• STōN Maintenance: five configurable service intervals tracked automatically by hours of operation. Reminders for belt tension, rail lubrication, nozzle replacement, and any custom intervals you set. Notifications print to console. No app, no cloud.
• Interruptible thermal soak with skip option.
USER VARIABLES
All user-tunable values live in one config file, clearly labeled. No SSH, no digging through scattered configs. Includes:
• Performance mode settings (speed, accel, SCV, fan scaling and caps per mode)
• Homing behavior (retract distance, currents, retry count, tolerance)
• Probe settings (offset, samples, retries, travel speed)
• Thermal soak time and temperature targets
• Parking positions (pause, cancel, print end)
• Nozzle wipe position and retract settings
• Filament change behavior (unload/load speeds, distances, temperatures)
• Flow limit per filament
• Z thermal compensation coefficient
• Maintenance interval hours
• Fan minimums and scaling per mode
• Bed mesh settings
BUILT-IN TUNING TOOLS
• MOTION_TUNE: live input shaper and motion calibration
• CHOPPER_TUNE: TMC stepper driver optimization with 10 presets
• Z_SWEEP: auditory Z-axis resonance finder
• TEST_SPEED: speed limit testing macro
• ShakeTune pre-installed
• TMC Autotune pre-installed with factory motor parameters
WIRELESS KLIPPER SCREEN
• Full KlipperScreen interface over VNC
• Use any phone, tablet, or laptop as your printer display
• No proprietary screen hardware, no extra cables
• Connect over WiFi and control everything
• Recommended Android app: bVNC Free
FILAMENT MANAGEMENT
• Filament runout detection
• Filament tangle/jam detection
• M600 filament change: pause, park, unload, load, resume mid-print
• Automatic filament change triggered on runout or tangle detection
WHAT’S INCLUDED
• STōN-WoLF printer kit (all mechanical, electrical, and electronic components)
• Pre-flashed Raspberry Pi CM5 with Klipper, Mainsail, and OrcaSlicer profiles
• Microswiss custom hotend with titanium heatbreak and CM2 nozzle
• LDO DarkRock305 PEI build plate
• Mean Well power supply with IEC power cable
• Schurter EMI filter with double fuses
• All wiring with genuine Molex, WAGO, and JST connectors
• Assembly documentation
• RF disable jumper (installed)
• Sample filament spool
WHAT’S NOT INCLUDED (but plug-and-play)
• Display (use any phone, tablet, or KlipperScreen-compatible display)
• USB camera (most USB cameras work, recommended for remote monitoring)
• Enclosure (modular add-on kit coming soon, existing owners get a discount)
• Filament (sample spool included, but you’ll need more)
ENCLOSURE ADD-ON
• Modular enclosure kit, designed to fit existing STōN-WoLF frames
• In development, coming soon
• Existing WoLF owners will receive a discount code
• Open frame prints PLA, PETG, flex, and engineering materials at 350°C without enclosure