2025 年最佳 Voron 主板 — BTT Octopus、SKR、Manta、Fysetc

电子 对比 Mainboard

The mainboard is the nervous system of your Voron printer. It controls every stepper motor, powers the hotend and heated bed, reads thermistors and endstops, and manages fans, LEDs, and add-ons like CAN bus toolheads. Picking the wrong board means insufficient driver channels, cramped wiring, or limited expansion for future upgrades. 最后更新时间：2025 年 5 月。

在本指南中，我们比较了适用于 Voron 构建的五种最流行的主板：BTT Octopus Pro v2、BTT Octopus v1.1、BTT SKR 3、Fysetc Spider v2.2 和 BTT Manta M8P（带有 CB1 计算模块）。我们涵盖步进驱动器数量、最大电流、风扇接头、热敏电阻输入、探头支持、CAN 总线准备情况、外形尺寸和真正的中国直接定价。

主板规格表一览

BTT Octopus Pro v2 — 旗舰

Octopus Pro v2 是 BigTreeTech 的旗舰 Voron 主板。它支持多达 8 个步进驱动器，每个驱动器的最大电流为 2.4A（使用 TMC5160），使其成为本次比较中功能最强大的板。它具有双 Z 轴支撑，每个 Z 轴电机都有独立的终点挡块，这对于 V2.4 上的四龙门调平 (QGL) 至关重要。板载 CAN-FD 收发器可让您连接 CAN 工具头（如 EBB36/42），无需任何附加板。

优点： Eight full driver slots — enough for V2.4 (X, Y, Z1, Z2, Z3, Z4, E0, E1) with dual extruders. Dual Z endstop headers for independent Z motor homing. CAN-FD onboard with a dedicated connector. Six fan headers (four PWM controllable). Five thermistor ports. The v2 revision fixes the USB-C power delivery issues present in earlier batches and adds better ESD protection on the stepper driver sockets.

缺点： Large form factor (170x100mm) — requires careful case planning. The TMC5160 drivers run hot and need active heatsinking. Power connector placement can be awkward in a LDO or Formbot electronics bay. Overkill for smaller Voron builds like the V0.2 or Switchwire.

最适合： Voron V2.4 350mm builds, large-format Vorons (V2.4 350+), dual-extrusion setups, and builders who want maximum expansion headroom. If you plan to add a CAN toolhead, multiple chamber heaters, or RGB LEDs, the Octopus Pro has the ports and power delivery to handle it all.

BTT Octopus v1.1 — 经过验证的标准

Octopus v1.1 是构建现有大多数 Voron V2.4 的主板。自 2021 年以来，它一直是社区的最爱，并且有充分的理由 — 它设计精良、文档齐全且广泛可用。与 Pro 一样，它提供 8 个驱动器插槽，但每个驱动器的最大电流稍低，为 2.0A，这对于 TMC2209（最常见的 Voron 驱动器）来说仍然足够。

优点： Excellent community support — every Klipper config template includes Octopus pin mappings. Eight driver slots handle any Voron configuration. Two independent Z endstop ports for V2.4 QGL. Four thermistor ports cover hotend, bed, chamber, and one spare. The 12V/24V fan headers are clearly labeled and independently switchable. Widely available from every Voron parts supplier.

缺点： No onboard CAN-FD — you'll need an external CAN hat or UART-to-CAN adapter for CAN toolheads. Only four fan headers (many V2.4 builds need five: one for electronics cooling, one for the part cooling fan, one for hotend fan, one for chamber fan, and one for a nevermore filter). The v1.1 uses a STM32F407 chip which has adequate but not excessive processing power.

最适合： First-time Voron builders on a V2.4, Trident builds, and anyone who wants a board that "just works" with years of community testing behind it. The Octopus v1.1 is the safe, proven choice.

BTT SKR 3 — 紧凑且功能强大

SKR 3 是 BTT 的五驱动器板，外形紧凑。与 Octopus 的 F407 相比，它使用更现代的 STM32G4 芯片，具有双倍的时钟速度和硬件浮点单元。较小的尺寸 (140x100mm) 使其成为紧凑电子设备托架的理想选择，五个驱动器足以满足大多数 Voron 型号的需求。

优点： Compact form factor fits easily in V0.2 and Switchwire electronics compartments. Five drivers cover V0.2 (X, Y, Z, E) and Switchwire (X, Y, Z, E) with one spare. The STM32G4 processor is noticeably snappier in Klipper — macro execution and math operations complete faster. Three thermistor ports are enough for hotend, bed, and chamber. Dual Z headers (not independent endstops, but two Z drivers shared on one stepper).

缺点： No CAN. Five drivers are insufficient for V2.4 quad-Z builds or dual-extrusion setups. Only three thermistor ports — no spare for an enclosure temperature sensor if you're also using bed and hotend. No dedicated probe port (you'll need to use a spare endstop header). Limited fan headers compared to the Octopus.

最适合： Voron V0.2 builds, Switchwire conversions, and budget Trident builds (if you don't need dual extrusion). The SKR 3 is also an excellent secondary board for managing a toolhead CAN bridge or chamber controller in a larger Voron setup.

Fysetc Spider v2.2 — 套件标准

Fysetc Spider v2.2 是 Voron 套件构建（Formbot、Fysetc 和一些 LDO 套件）中最常见的主板。它是一个 8 驱动器板，其布局与 Octopus 略有不同，具有专为 Voron 打印机设计的功能。 Spider已经经历了多次修改，其中v2.2最为成熟可靠。

优点： Eight drivers handle any Voron configuration. Dedicated Voron wiring — the terminals are laid out to match the Voron wiring spec, making cable management cleaner. Dual Z endstop headers for V2.4 QGL. Onboard 12V/24V buck converter so you can power the logic from 24V without an external PSU. Three independently fused fan outputs (always-on, controlled-chamber, controlled-part). Good community support from the Voron Discord.

缺点： No CAN-FD onboard. The firmware flashing process is slightly more involved than BTT boards — you need to set jumpers for the correct DFU mode. The heat sink on the Spider is not as effective as the Octopus Pro's — TMC5160s tend to run hotter. Fewer PWM fan headers compared to the Octopus. Some early v2.2 batches had quality control issues with loose terminal blocks.

最适合： Builders using a Formbot or Fysetc kit who want to keep the bundled board and save money. The Spider v2.2 is a capable board — it just lacks some of the polish and expansion options of the Octopus series. If you're on a strict budget and building a V2.4, the included Spider works well.

BTT Manta M8P — 集成计算

Manta M8P 通过将计算模块（CB1 或 Raspberry Pi CM4）直接集成到主板上，打破了传统主板模具。这样就不再需要单独的 Raspberry Pi——Manta 是“主板 + Klipper 主机”的一个封装。 M8P 型号有 8 个驱动器插槽和板载 CAN-FD。

优点： No separate Raspberry Pi required — the CB1 module (quad-core Cortex-A53, 2GB RAM) runs Klipper, Moonraker, and Mainsail/Fluidd smoothly. The integrated CB1 mounts directly to the board via a 100-pin connector, eliminating USB and power cables between the Pi and the mainboard. Onboard CAN-FD for toolhead communication. Five fan headers (three PWM). Clean, modern layout with color-coded terminals. Five thermistor ports. The CB1 module costs ~$20-25, making the total board + compute package cheaper than an Octopus + Pi 4.

缺点： If the CB1 module fails, you lose both the Pi and the mainboard interface (though the stepper portion still works over USB from an external Pi). CB1 software compatibility is good but not as thoroughly tested as Raspberry Pi OS — some Klipper plugins have minor issues. The Manta + CB1 draws more power from the 24V rail than a standard board + separate Pi. Firmware updates for the CB1 require slightly different workflows than standard Pi updates.

最适合： Trident builds (the Manta fits perfectly in the Trident's electronics compartment), new builders who want a clean all-in-one solution, and anyone building a Voron in 2025 who wants the latest integrated architecture. The Manta M8P + CB1 is our recommended combo for the Trident.

步进驱动器选择 — TMC2209、TMC2240、TMC5160

您选择的步进驱动器与电路板本身一样重要。以下是三个主要选项的比较：

• TMC2209： The Voron standard. 2.0A max current, UART control (stealthChop and spreadCycle modes), stallGuard2 for sensorless homing. Quiet, efficient, and proven. Runs cool enough to use without heatsinks at typical Voron currents (1.2-1.5A for X/Y, 1.0-1.2A for Z). Price: $5-8 per driver China-direct. This is the best choice for 95% of Voron builders.
• TMC2240： The upgrade from TMC2209. 2.6A max current, better thermal performance, and more advanced current control (CoolStep, StallGuard4). Draws slightly less power than the 2209 at the same torque output. Useful for high-torque Z motors on large V2.4s, or if you're running 0.9° steppers that need higher current. Price: $10-14 per driver China-direct.
• TMC5160： The high-power option. 2.8A max current with external MOSFETs for superior thermal handling. Designed for large-format printers with heavy gantries. Overkill for most Voron builds — the 2209 and 2240 provide plenty of torque for Voron-sized beds. Runs hot, requires active heatsinking, and is significantly more expensive ($18-25 per driver). Only recommended for 350mm+ V2.4 builds with heavy print beds or dual extruder heads.

我们的建议： TMC2209s for all axes on any Voron build. If you're building a 350mm V2.4 with a glass bed and heavy toolhead, consider TMC2240s for the Z axes. Skip TMC5160s unless you're building a custom extra-large Voron or running a heavy dual-extrusion toolhead.

每块板的安装提示

八达通专业版 v2 / 八达通 v1.1

• Flash via DFU mode: hold the BOOT button while plugging in USB, then use make flash FLASH_DEVICE=0483:df11 in Klipper
• Wire Z endstops to STOP_1 and STOP_2 for independent Z homing on V2.4 — do not jumper them together
• 5V 和 3.3V 输出总计限制为 500mA — 如果您有带 USB 配件的耗电 Pi 5 或 Pi 4，请勿通过 Octopus 为您的 Pi 供电
• 使用用于零件冷却风扇的专用 24V 风扇接头连接器（每个可处理 1A 电流），以及用于电子设备冷却的常开风扇接头连接器

BTT SKR 3

• Flash via SD card — copy the compiled klipper.bin to a FAT32 SD card, insert it, and power on. The board renames the file to FIRMWARE.CUR on successful flash
• 只有一个 Z 端挡块端口 — 对于双 Z Trident 构建，将两个 Z 电机连接到同一驱动器并使用机械床调平（Z 倾斜调节不适用于只有一个 Z 端挡块）
• The probe port is shared with the Z endstop — you'll need to set endstop_pin: probe:z_virtual_endstop in Klipper config
• 如果运行电流高于 1.4A RMS，建议所有驱动器都使用散热器

Fysetc蜘蛛v2.2

• 刷写需要设置启动跳线（BOOT0 为高电平，然后重新上电，然后通过 DFU 刷写）。刷新后，将 BOOT0 返回低电平并再次重新启动——这一步骤吸引了许多初次使用的用户
• 每个带保险丝的风扇输出额定电流为 3A，但 24V 电源轨上的总风扇电流不应超过 6A
• 热敏电阻端口使用 4.7k 上拉电阻 — 与标准 100k NTC 热敏电阻（Voron 标准）兼容
• Spider 的布局沿着板的右侧布置步进电机接线 - 规划电缆布线以避免交叉高电流交流接线

曼塔 M8P（带 CB1）

• 先刷CB1，再刷主板。 CB1 附带通用 Armbian 映像 - 刷新 Klipper 特定的 Armbian 版本或使用来自 GitHub 的 BTT 预构建映像
• CB1 安装在 Manta 板的下侧 — 确保电子设备舱内有足够的间隙（板下方约 15 毫米）
• CAN-FD 在 Manta 上进行了预配置 — 将 CAN 工具头连接到专用 4 针接头，并将工具头的 CAN 速度设置为 1,000,000 波特，以匹配 Manta 的默认设置
• 使用专用的 24V 电源（不是 Pi 的 5V）为 Manta 供电。 CB1 通过 100 针连接器从主板获取电源

Voron 模型的推荐

Voron V2.4（所有尺寸）： BTT Octopus Pro v2 or Octopus v1.1. The V2.4 needs four independent Z drivers for quad-gantry leveling, plus X, Y, and E0 — that's seven drivers minimum. The Octopus gives you eight with room for a second extruder or an IDEX toolhead later. The Pro's CAN-FD is a bonus if you plan to run a CAN toolhead.

Voron三叉戟： BTT Manta M8P + CB1. The Trident uses three Z motors on a single driver with Z tilt adjust, needing only five drivers total (X, Y, Z, E0, spare). The Manta's onboard CB1 eliminates Pi wiring, and the Trident's electronics compartment was practically designed for the Manta's form factor.

沃龙V0.2： BTT SKR 3. The V0.2 only needs four drivers (X, Y, Z, E0) plus one spare. The SKR 3's compact size fits perfectly in the V0.2's tight electronics compartment. Pair it with TMC2209s in UART mode for silent operation.

Voron开关线： BTT SKR 3. Same logic as the V0.2 — four drivers needed, and the SKR 3's size fits the Switchwire's limited electronics space. If you're converting an Ender 3, the SKR 3 can even reuse the existing 24V PSU and wiring.

预算构建（任何型号）： Fysetc Spider v2.2. If you're sourcing parts from Formbot or Fysetc kits, the included Spider is perfectly adequate. It won't stop you from getting excellent print quality — it just has fewer convenience features than the BTT options.