BTT

BTT EBB Pro R1

BigTreeTech (BTT) · Requires Manual Verification

CAN Bus STM32H723 LIS2DW12TR

BTT's flagship toolhead board, released mid-2026. It pairs an STM32H723 with a 20-pin FPC connector, so the toolhead can be wired with a single ribbon instead of a loom. All three fan ports are 4-wire with tachometer feedback, and the MAX31865 and 120R CAN termination are both onboard. Verified here from the official pinout diagram and Klipper example config.

BTT

BTT EBB SB2209 CAN

BigTreeTech (BTT) · $40–55

CAN Bus STM32G0B1 ADXL345

Purpose-built 2-piece board for the Voron StealthBurner. Features 3 onboard USB ports for connecting devices like Beacon probes, nozzle cameras, or ADXL accelerometers directly at the toolhead. Uses the newer STM32G0B1 MCU with more resources than the EBB36.

BTT

BTT EBB SB2209 CAN (RP2040)

BigTreeTech (BTT) · $26–36

CAN / USB RP2040 ADXL345

RP2040-based variant of the popular SB2209. Uses the dual-core RP2040 MCU at 133MHz instead of the STM32G0B1. Key advantage is the larger PH2.0 connectors which are much easier to crimp than JST connectors. Includes onboard MAX31865 for PT100/PT1000 support. CAN/USB dual mode with USB-C passthrough.

BTT

BTT EBB SB2240 CAN

BigTreeTech (BTT) · $50–65

CAN Bus STM32G0B1 ADXL345

Premium StealthBurner CAN board with the TMC2240 stepper driver. The 2240 offers better thermal performance and higher current capability than the 2209, making it ideal for high-flow setups that demand more from the extruder motor. Otherwise identical to the SB2209.

BTT

BTT EBB36 CAN

BigTreeTech (BTT) · $30–45

CAN Bus STM32G0B1 (V1.1/V1.2; V1.0 was STM32F072) ADXL345

The most popular 36mm CAN bus toolhead board. Affordable, well-documented, and compatible with most toolheads using NEMA14 stepper motors. Gen 2 version adds USB-C and improved thermals. Reduces toolhead wiring to just 4 wires (24V, GND, CAN-H, CAN-L).

BTT

BTT EBB36 Gen 2

BigTreeTech (BTT) · $26–38

CAN / USB STM32G0B1CBT6 ADXL345

The Gen 2 successor to the legendary EBB36. Major upgrades include STM32G0B1 MCU (64MHz vs 48MHz), comprehensive I/O protection (ESD, overcurrent, reverse polarity), USB-C passthrough in CAN mode, a 3rd fan port with tachometer feedback, and 75°C chamber rating. CAN/USB mode is selectable via jumper. Includes a 2.2m drag-chain rated cable.

BTT

BTT EBB42 CAN

BigTreeTech (BTT) · $30–45

CAN Bus STM32G0B1 (V1.1/V1.2; V1.0 was STM32F072) ADXL345

The NEMA17 version of the popular EBB series. Same features as the EBB36 but in a 42mm square form factor for full-size stepper motors. Good choice for toolheads that use standard NEMA17 motors instead of pancake steppers.

BTT

BTT EBB42 Gen 2

BigTreeTech (BTT) · $26–38

CAN / USB STM32G0B1CBT6 ADXL345

42mm version of the Gen 2 EBB, designed for NEMA17 stepper motors. Same comprehensive protection suite and feature set as the EBB36 Gen 2. Ideal for toolheads using full-size NEMA17 extruder motors like the CW2 or BMG. CAN/USB mode selectable via jumper.

BTT

BTT Hermit Crab 2 CAN

BigTreeTech (BTT) · $58–73

CAN / USB RP2040 LIS2DW

Unique quick-change toolhead system by BIQU/BTT. Allows hot-swapping entire toolhead assemblies (hotend + extruder) without rewiring. The CAN version includes an RP2040 MCU, TMC2209 driver, LIS2DW accelerometer, and MAX31865 for PT100/PT1000. Price includes the quick-change mechanical hardware.

FY

Fysetc H36 Combo V1.3

Fysetc · $45–65

CAN / USB STM32G0B1 ADXL345

The highest temperature-rated toolhead board available. Rated for 125°C in CAN mode (85°C in USB mode, limited by USB hub IC). Features an onboard USB hub with 2 USB ports for connecting Beacon probes, nozzle cameras, or other USB peripherals directly at the toolhead. The 6-layer PCB design with premium capacitors ensures reliable operation in heated chambers.

FY

Fysetc SB Combo V2

Fysetc · $30

CAN / USB STM32F072CBT6 ADXL345

Fysetc's V2 StealthBurner board with the standout feature of a built-in USB 2.0 hub providing 3 USB ports — perfect for connecting IDM/Beacon scanner, nozzle camera, and other USB accessories without extra wiring. Includes a main board + auxiliary board with 5 total fan ports. CAN/USB mode switchable via hardware switch. Excellent value at $30.

FY

Fysetc SB-CAN-TH V1.3

Fysetc · $30–45

CAN Bus STM32F072 ADXL345

Budget-friendly StealthBurner CAN board from Fysetc. Includes a pre-made 2.5m CAN cable for quick installation. V1.3 improves the heater connector for higher wattage and adds a 120-ohm termination resistor header. Uses older STM32F072 MCU.

HA

Hartk Toolhead PCB V4.0

Hartk (Community) · $15–25

Passive / Breakout N/A

Community-designed passive wiring distribution PCB for Stealthburner/Afterburner. No onboard MCU — simply organizes and routes the toolhead wiring through a clean 14-pin Microfit connector. The most affordable option and a good choice when you don't need CAN/USB toolhead communication and prefer traditional wiring.

HU

Huvud V0.61

Huvud (Open Source) · $40–60

CAN Bus STM32F103 ADXL345

Open-source CAN toolhead board by Bondus. Compact 42mm design with the highest heater current rating (6A) among toolhead boards. V0.61 adds onboard ADXL345 accelerometer. Popular in tool-changer and custom builds. Available from community sellers.

LDO

LDO Nitehawk-36

LDO Motors · $55–75

USB RP2040 ADXL345

LDO's premium USB toolhead board. No CAN bridge or U2C adapter needed — plug directly into the host SBC via USB. Features a dedicated secondary USB port for connecting a Beacon or Cartographer eddy-current probe, enabling a true one-cable setup for the entire toolhead including probe. Universal 36mm form factor fits any toolhead accepting round NEMA14 boards.

LDO

LDO Nitehawk-SB

LDO Motors · $55–75

USB RP2040 ADXL345

LDO's StealthBurner-specific USB toolhead board. Same USB simplicity as the Nitehawk-36 but in a 2-piece form factor designed specifically for the Voron StealthBurner. Features 3 fan ports and a secondary USB port for Beacon probe. The go-to choice for StealthBurner builds that want simple USB setup without CAN bus complexity.

LDO

LDO Orbitool O2

LDO Motors · $30

USB STM32F042 LIS2DW

Entry-level Orbiter-specific toolboard by LDO. Purpose-built to connect directly to the LDO Orbiter v2 extruder motor and sensor connector. Features comprehensive protection circuitry (short circuit, reverse polarity, thermal runaway, EMI/ESD on all I/O). USB-only connection — no CAN bus. The most affordable LDO toolboard option.

LDO

LDO Orbitool O2S

LDO Motors · $41

USB STM32F072 ADXL345

Smart version of the Orbitool with significant upgrades: TMC2240 stepper driver (better thermals, higher current), onboard USB port for accessories (Beacon, nozzle camera), ADXL345 accelerometer, and Klipper auto-update. The go-to toolboard for RatRig V-Core 4 builds with Orbiter extruder. USB-only connection.

LDO

LDO Orbitool O3

LDO Motors · $48

USB STM32F042 LIS2DW

Dedicated toolboard for the LDO Smart Orbiter v3 — the all-in-one toolhead that integrates extruder, hotend, and sensor package. Connects directly to the SO3's integrated control board. Features the same comprehensive protection suite as the Orbitool O2. The most expensive Orbitool due to the specialized SO3 integration.

Voron V0-specific integrated umbilical board by LDO. Combines an RP2040-based toolhead interface with a 24V-to-5V buck converter, neopixel ports, and buzzer into a single clean umbilical system. Simplifies V0 wiring significantly by eliminating the need for separate 5V power management. Not a toolhead board in the traditional sense — it's a complete wiring solution for the V0 platform.

LDO's take on the passive toolhead breakout PCB, based on the Hartk design but with improvements. Uses screw terminals for the heater connection (vs Microfit on Hartk), includes NTC10K thermistors, and comes with premium FEP-insulated cabling. Included in LDO Voron kits.

ME

Mellow Fly SB2040 Pro V3

Mellow · $45–55

CAN Bus RP2040 LIS2DW

Pro version of the SB2040 V3 with a TMC2240 stepper driver instead of TMC2209. The TMC2240 offers better thermal performance, higher current capability, and smoother operation. Same RP2040 MCU and feature set as the standard V3. Best choice for users wanting premium driver performance on the Mellow platform.

Mellow's StealthBurner-specific CAN toolhead board built on the RP2040. A solid mid-range option with good community documentation. CAN-only design reduces to 4 wires. V2 improves thermal management and connector layout over V1.

ME

Mellow Fly SB2040 V3

Mellow · $41–42

CAN Bus RP2040 LIS2DW

V3 revision of Mellow's StealthBurner CAN board. Key upgrades over V2 include the newer LIS2DW accelerometer, onboard MAX31865 for PT100/PT1000, multiple communication modes (CAN, RS232, RRF CAN), and high-current XT30 connector. One of the few boards supporting both Klipper and RepRapFirmware.

ME

Mellow Fly SHT36 Pro

Mellow · $28–30

CAN Bus RP2040 ADXL345

Premium 36mm board with a TMC5160 stepper driver — the highest-current driver available on any toolhead board. The TMC5160 handles higher motor currents and runs cooler than TMC2209/2240. Features a 6-layer PCB with replaceable fan MOSFETs for easy repair. Excellent value at $28-30 for a TMC5160 board. Supports Klipper and RepRapFirmware.

Versatile 36mm round CAN toolhead board from Mellow. Uses a GD32F103 (early units) or APM32F072 (units sold after Oct 2022) MCU with an integrated TMC2209 driver. Compatible with any toolhead accepting a 36mm round board. Requires a UTOC or similar USB-to-CAN bridge board. V2 adds power reverse-polarity protection, a 10A heater port and 5/12/24V fan voltage selection.

ME

Mellow Fly SHT36 V3

Mellow · $25–45

CAN Bus RP2040 LIS2DW

V3 revision of Mellow's universal 36mm board. Available in 4 variants: Standard (basic), Plus (adds MAX31865), Eddy (adds LDC1612 eddy sensor), and Max (MAX31865 + LDC1612 + full RRF support). Supports NEMA14 and NEMA17 motors. Excellent choice for Xol, A4T, DragonBurner, and other 36mm toolheads.

The NEMA17 version of the Mellow SHT series. Same RP2040 platform and features as the SHT36 but in a 42mm square form factor for full-size stepper motors. Ideal for toolheads using standard NEMA17 extruder motors.

MKS

MKS THR36

MKS (Makerbase) · $25–40

CAN / USB RP2040 ADXL345

Makerbase's dual-mode 36mm toolhead board. Can operate via direct USB serial OR CAN bus (using the MKS UTC bridge board). Offers flexibility to start with USB and upgrade to CAN later. Uses the same RP2040 platform as the Mellow SHT boards.

MKS

MKS THR42

MKS (Makerbase) · $25–40

CAN / USB RP2040 ADXL345

The NEMA17 version of the MKS THR series. Same dual-mode USB/CAN capability as the THR36 but in a 42mm square form factor. Good budget option for builds using full-size NEMA17 extruder motors.