Hermit Crab V2 Can Version Quick Change Extruder Hotend Tool for 3D Printing

Hermit Crab V2 Can Version Quick Change Extruder Hotend Tool for 3D Printing

• The BIQU Hermit Crab V2 CAN Version is a quick change toolhead system designed to help you swap print heads quickly on a single 3D printer.
• Built for Klipper users, it’s ideal for makers who want to switch between multiple hotends, extruders, or even non-print tools (like laser or pen plotter heads) without rewiring the entire toolhead every time. The kit includes three tool plates and one fixed plate, giving you a practical starting setup for multi-tool workflows.
• This CAN-based platform focuses on cleaner wiring and smarter toolhead electronics.
• It uses a powerful RP2040 MCU and includes onboard sensors and expansion options to support advanced builds.
• The integrated LIS2DW accelerometer helps with motion tuning (useful for resonance testing), while onboard MAX31865 support enables better integration with high-accuracy temperature sensing setups (where applicable).
• With a TMC2209 driver onboard and selectable fan voltage, it’s designed to be flexible across different toolhead configurations.
• Mechanically, the design emphasizes low weight and secure alignment. The fixed plate is optimized to reduce overall mass, and upgraded connecting parts aim for a seamless fit between the tool plate and fixed plate.
• For day-to-day use, the circular buckle structure and spring contact system are designed to make removal simple—press the spring and detach the toolhead quickly, saving time during material changes, nozzle swaps, or when changing between “detail” and “speed” toolheads.
• If you run multiple print heads—such as H2 or E3D Hemera—or want one machine that can also handle occasional laser/plotter tasks, the Hermit Crab V2 CAN setup helps make that workflow more practical and repeatable.

Specifications

• Firmware: Klipper
• MCU: RP2040 dual ARM Cortex‑M0+ @ 133MHz
• Material: Aluminium alloy
• Input voltage: DC12V–DC24V 9A
• Logic voltage: DC3.3V
• CAN interface: XT30
• USB communication: USB Type‑C
• Onboard accelerometer: LIS2DW
• Onboard MAX31865: Yes
• Expansion: I2C, RGB, Probe, 2×2 pins, 4‑pin fan (fan voltage selectable)
• Fan output: max 0.75A (peak 0.9A)
• Motor driver: TMC2209 (mode UART)
• Stepper interface: E0
• Temp sensor: NTC100K / PT100 / PT1000 selectable
• DCDC 5V output: max 1A

Applications

• Multi-tool setups with quick change toolhead workflows
• Switching between different hotends/nozzles or filament profiles
• Toolhead swaps for H2, E3D Hemera, and other compatible heads
• Laser/pen plotter toolhead adaptation on one printer

Features

• Lightweight innovation with reduced fixed-plate weight and improved connection alignment
• Strong scalability: onboard LIS2DW, MAX31865, upgraded USB and CAN
• Easy to disassemble: spring contact + buckle structure for fast removal
• Broad toolhead compatibility for printing and non-printing heads
• Supports efficient workflow through fast hotend/extruder swaps

Commands / Notes

• Designed for Klipper builds; confirm your CAN wiring and termination before use.
• Verify toolhead compatibility and mounting before installing multiple plates.
• If using PT100/PT1000, configure MAX31865 and sensor type correctly in firmware.

Package Include

• 1 piece of hermit crab V2 Can version.