Stealthburner 与 Afterburner — Voron 工具头比较

工具头 升级 对比

The toolhead is the heart of any Voron printer — it carries the hotend, extruder, part cooling fan, and probe all in one integrated package. The Voron project has produced two major toolhead designs: the original 加力燃烧室 (released in 2020) and the updated 隐身燃烧器 (released in 2022). If you're building a new Voron or considering an upgrade, understanding the differences is critical for print quality, reliability, and maintenance.

最后更新时间：2025 年 5 月。 This guide covers both toolheads in depth — design philosophy, cooling performance, extruder options (CW1 vs CW2), weight, compatibility across Voron models, cost, and upgrade difficulty. We'll also share our recommendations for new builds versus existing printers.

设计理念：两代人

Afterburner 是 Voron 的第一个集成工具头。它将紧凑型 Bowden 型挤出机（Clockwork CW1）与双 4010 风扇冷却管道和集成探针安装座相结合。与最初的 Voron 工具头相比，这是一个巨大的进步，最初的 Voron 工具头依赖于单独的挤出机和定制风扇护罩。 Afterburner 的一体化设计使构建更简单、更一致。

Stealthburner 由 Voron 团队成员 cloutier 设计，是一次彻底的重新设计。它具有更时尚、更符合空气动力学的外观、通过双 5015 鼓风机改进的零件冷却以及 CW2 挤出机（对 CW1 的重大机械升级）。 Stealthburner 还增加了对 LED 照明（Neopixel strip）的支持、重新设计的探头安装座（更好的 Omron/PL-08N 对准）以及用于腔室热敏电阻安装的可选“耳朵”。

The key philosophy shift: the Afterburner was designed to be functional and reliable, while the Stealthburner aims to be functional, reliable, and high-performance — with better cooling, easier maintenance, and a more modern aesthetic.

冷却性能——最大的区别

这是两个工具头之间最有影响力的区别。 Afterburner 使用双 4010 轴流风扇（一个用于零件冷却，一个用于热端散热器）。 Stealthburner 使用单个 3010 风扇作为散热器，使用两个 5015 鼓风机进行部件冷却。

零件冷却对比：

• 加力燃烧室： Single 4010 axial fan (~4 CFM). Adequate for PLA and PETG at moderate speeds (60-100 mm/s). Struggles with overhangs and bridges at high speeds. Bridges over 50mm are difficult without significant droop.
• 隐形燃烧器： Dual 5015 blower fans (~20 CFM combined). Dramatically better cooling. Clean bridges up to 100mm. Sharp overhangs at 60-70 degrees. Enables printing PLA at 200+ mm/s without quality loss. The blower fans also direct air more precisely at the print zone rather than diffusing it.

如果您打印大量 PLA（需要积极的零件冷却才能获得良好的质量），Stealthburner 是一次大规模升级。对于 ABS/ASA 打印，两者都足够了，但 Stealthburner 的额外净空意味着即使使用高温材料，您也可以更快地打印。

散热器冷却： The Afterburner uses a 4010 axial fan for the heat sink, which is effective but noisy. The Stealthburner uses a smaller 3010 fan, which is quieter but still provides adequate cooling for most hotends. If you're running a high-flow hotend like the Rapido UHF or Goliath, you may want to upgrade the Stealthburner's 3010 fan to a higher-static-pressure model.

挤出机：CW1 与 CW2

挤出机是另一个主要的差异化因素。 Afterburner 使用 Clockwork 1 (CW1) 挤出机 - 一种直接驱动的齿轮设计，齿轮减速比为 50:10。 CW1 的齿轮比为 3:1，并使用单个 M3 螺钉实现惰轮张力。它运作良好，但有一些怪癖。

Stealthburner 使用 Clockwork 2 (CW2) 挤出机。主要改进：

• 更好的齿轮啮合： The CW2 uses a more robust gear engagement system with less backlash. The bondtech-style drive gears mesh more consistently, reducing the chance of skipping on filament changes.
• 改进的惰轮张紧： The CW2 has a captive spring-based idler with adjustable tension via a thumb screw. The CW1's single-screw tensioner is harder to adjust consistently.
• 更快的灯丝更换： The CW2 has a larger filament path opening and a lever-style release that makes loading/unloading smoother. The CW1 requires more force and is prone to filament grinding if tension is too high.
• 重量更轻： The CW2 printing profile is slightly lighter (by about 6 grams) due to optimized geometry, though the overall toolhead weight difference is dominated by the fans.
• 行星齿轮选项： The CW2 supports a planetary gear reduction module (the "CW2 Planetary") that provides higher torque for flexible filaments like TPU. This is not available for the CW1.

挤出机的底线： The CW2 is a meaningful improvement over the CW1, especially for flexible materials and high-throughput printing. If you build a new printer, there's no reason to choose the CW1. For existing Afterburner builds, the CW2 can be retrofitted — though you'll need to print new parts and possibly upgrade your toolhead board if your current one doesn't support the CW2's different sensor position.

重量和惯性

尽管 Stealthburner 的风扇更大，但整体重量几乎与 Afterburner 相同。 CW2挤出机比CW1更轻，打印的部件也稍微优化了一些。结果是，Stealthburner 不会增加有意义的惯性 - 升级时您无需重新调整输入整形器或降低加速度限制。

Voron 型号之间的兼容性

这两个工具头都与 V2.4、Trident、V0.2 和 V1.8 兼容，但有一些重要的注意事项。

V2.4 和 Trident（所有尺寸）： Both toolheads fit natively. The Stealthburner is the recommended toolhead for any new V2.4 or Trident build as of 2023+. The Afterburner is still supported but no longer the default recommendation. For existing V2.4 and Trident builds, upgrading to Stealthburner is straightforward — you print the new parts, swap the extruder, and update your Klipper config (new fan pins and potentially new probe offsets).

V0.2： The Stealthburner was specifically designed with the V0.2 in mind. The mini-Stealthburner (a slightly scaled-down version) is the standard toolhead for V0.2 builds. The Afterburner also fits the V0.2 (the "Mini Afterburner") but the Stealthburner's better cooling is especially valuable on the small build volume where you're more likely to print PLA at high speeds.

V1.8： Both toolheads work, but the Stealthburner's LED support is a nice addition since the V1.8 has an enclosed chamber where good lighting is harder to achieve. Pro tip: add a chamber LED strip regardless of which toolhead you choose.

可打印与预组装选项

两个工具头的打印部件可在官方 Voron GitHub 存储库中找到。您需要使用 ABS 或 ASA 进行打印 — 不建议使用 PETG，因为它在封闭的打印机室内具有较低的热变形温度。

If you don't want to print your own parts, pre-printed Stealthburner and Afterburner sets are available from community vendors. Expect to pay $20-35 for a quality set printed in ABS with proper layer adhesion. Through our mini-program, we offer pre-printed Stealthburner sets at factory-direct pricing — the same prints from the same Chinese factories that supply the kit brands.

对于金属部件（挤出机齿轮、惰轮、螺钉），CW2 硬件套件在 AliExpress 上的成本约为 15-20 美元，而 CW1 套件的成本为 10-15 美元。对于 800 美元以上的构建来说，差异可以忽略不计。

升级难度

在现有 Voron 上从 Afterburner 升级到 Stealthburner 是一项中等难度的工作。以下是涉及的内容：

• 打印新零件 — about 8-10 hours of print time on a well-tuned printer (if you're upgrading, your current toolhead is still functional for printing the new parts)
• 拆卸加力燃烧室 — remove the CW1 extruder, fans, and printed housing. Keep the hotend, probe, and toolhead board
• 组装隐形燃烧器 — print the CW2 extruder body, assemble the gears and idler, mount the 3010 heat sink fan, install the 5015 blowers, route the wiring through the cable channels
• 更新 Klipper 配置 — change the fan pin assignments (from one 4010 to two 5015s), update the probe offset (X and Y offsets differ slightly), and recalibrate the extruder rotation distance if you're changing the extruder gear type
• 重新调整压力提前 — the new extruder and cooling duct may affect PA values slightly. Run the PA tuning tower again
• 更新输入整形器 — while the weight is similar, it's good practice to re-run input shaper calibration since the center of mass shifts slightly

总时间：经验丰富的建造者需要 3-5 小时。如果这是您第一次，请计划一个周末下午。

成本比较

加力燃烧器的成本差异为 10-15 美元。对于这一小额溢价，Stealthburner 提供了更好的冷却、更好的挤出机和面向未来的功能。成本差异并不影响总体构建预算。

建议

对于新版本（V2.4、Trident、V0.2）： Build the Stealthburner. There is no reason to start with an Afterburner in 2025. The improved cooling alone is worth it — and the CW2 extruder is a genuinely better design. The extra $10-15 is negligible.

对于现有的 Afterburner 版本： It depends. If you're happy with your print quality and rarely print PLA at high speeds, there's no urgent need to upgrade. The Afterburner is a perfectly capable toolhead. However, if you're chasing higher speeds (200+ mm/s), struggling with PLA overhangs, or want to print flexible materials, the Stealthburner upgrade is worth the weekend of work.

对于 V0.2 版本： The mini-Stealthburner is strongly recommended. The V0.2's small build volume means you're often printing at high accelerations, and the improved part cooling gives you significantly better quality on small parts with sharp overhangs.

最后一点： If you have a well-tuned Afterburner build that's working perfectly, don't feel pressured to upgrade. Many Voron builders have produced thousands of excellent prints with the Afterburner. The Stealthburner is better, but the Afterburner is still great.