完整的 Voron 自采购指南 — 通过直接购买零件省钱

采购 DIY 预算

The most expensive way to build a Voron is buying a pre-assembled kit from a Western distributor. The cheapest is buying everything yourself — directly from the factories and warehouses in China that actually manufacture the components. Self-sourcing can save you 40-60% over kit prices, and 50-70% over buying from local resellers. This guide shows you exactly how.最后更新时间：2025 年 5 月。

警告： Self-sourcing requires research, patience, and attention to detail. You'll need to verify specifications, check seller ratings, and manage multiple orders. If that sounds like work you'd rather skip, we offer a mini-program that does all of this for you — contact us for a complete BOM with verified sourcing links.

为什么要自源？

让我们看一个具体的例子。 Formbot 的 V2.4 350mm 套件售价约为 750 美元。自制的 V2.4 具有比套件更好的组件，成本约为 400-500 美元。这是一个粗略的细分：

节省是真实的，但您需要知道在哪里寻找以及避免什么。让我们逐个分类。

框架采购 — 2020/2040 型材

铝型材是商品。这是最容易自行获取的类别。

• 购买地点： AliExpress, Taobao, or local aluminum suppliers. Search for "2020 aluminum extrusion" or "2040 aluminum extrusion."
• 需要指定什么： T-slot profile (Voron uses standard 2020 and 2040), length (check the BOM for your model), color (black is most common, silver is cheaper), and end threading (some need M5 threaded ends — specify when ordering or tap yourself).
• 质量检查： Measure the length (±0.5mm tolerance is fine). Check that the T-slots are clean and the edges are deburred. A slight burr is acceptable — you can file it off in seconds.
• 角支架和 T 型螺母： Also commodity items. Buy standard die-cast aluminum corner brackets and M5 roll-in T-nuts. Avoid cheap zinc-plated brackets — they snap under tension.
• 推荐卖家： "RobotDigg" and "ZYLtech" on AliExpress are reliable. On Taobao, search for "2020型材" and look for sellers with 4.8+ ratings and 10,000+ sales.

V2.4 350 的预计成本： $50-80 for all extrusions, brackets, and T-nuts. This is 50% less than what you'd pay in a kit.

直线导轨——最关键的部件

线性导轨的质量比任何其他单个组件更能决定打印机的运动质量。这是你应该花费最多注意力的地方，如果需要的话，也应该花最多的钱。

• 等级解释： C5 grade is ideal — smooth, precise, and affordable. C7 grade is cheaper but has slightly more friction and less consistency. Avoid anything below C7. Genuine Hiwin C5 rails cost $30-50 each. Chinese C5 equivalents cost $10-20 each and are usually good enough.
• 买什么： MGN7H (for X axis on V0.2), MGN9H (for X axis on V2.4/Trident), MGN12H (for Y axis on all models), and MGN9H or MGN12H (for Z axis on V2.4). Check your BOM for exact lengths and quantities.
• 速卖通推荐卖家： "LDO Motors Store" (yes, they sell rails separately), "Ootdty Official Store," "Dongguan DaGuang Hardware," and "TronXY Official Store." Avoid sellers with less than 97% positive feedback or fewer than 500 sales.
• 要避免什么： Rails that claim to be "Hiwin" but cost $8 — they're counterfeit. Rails with no brand marking. Rails from sellers who can't specify the grade (C5, C7, etc.).
• 安装前测试： Every rail should be bench-tested. Run the carriage end-to-end — it should move with smooth, even resistance. There should be no rough spots, clicking, or uneven friction. If a rail fails this test, return it immediately.

V2.4 350 的预计成本： $80-120 for all rails (vs. $150-200 in a Formbot kit, $250-350 in an LDO kit).

运动部件 — 皮带、滑轮、轴承

• 腰带： Genuine Gates GT2 belts are worth the extra money. They maintain tension longer and resist fraying. A 5m roll of Gates GT2 is $10-15 on AliExpress (search "Gates GT2-2M timing belt"). Generic belts cost $3-5 but stretch quickly. Budget for Gates belts — they're cheap insurance.
• 滑轮： 20-tooth GT2 pulleys for X/Y, 16-tooth or 20-tooth for Z (V2.4). Look for aluminum pulleys with set screws — avoid plastic. "TriangleLab" and "Phaetus" stores sell quality pulleys. Check that the bore diameter matches your motor shaft (typically 5mm).
• 轴承： F695-2RS (flanged) bearings are used in Voron idlers. Buy from bearing specialists like "Dongguan Bearings Store" on AliExpress. SKF or NSK are best; Chinese equivalents (HRB, C&U) are good budget options. Avoid unbranded bearings.
• 惰轮： You can buy complete idler assemblies or build them from bearings and printed parts. Complete metal idler kits from "Mellow Store" or "TriangleLab" are ~$15 and save assembly time.

V2.4 350 的预计成本： $30-50 for belts, pulleys, and bearings.

电子产品 — 主板、PSU、驱动器、Pi 替代品

• 主板： BTT Octopus v1.1 is the gold standard for Voron (V2.4, Trident). It has 8 stepper drivers, multiple thermistor ports, and great Klipper support. Buy from "BigTreeTech Official Store" on AliExpress. The SKR 3 or SKR Mini E3 are options for V0.2 builds. Expect to pay $40-60 for the board.
• 步进驱动器： TMC2209 or TMC2240 are the standard choices. TMC2240 is newer and runs cooler. Buy from BTT official store to avoid counterfeits. 5 drivers for a V2.4 (4 Z + 1 X + 1 Y = 6 total, but you can use one driver for each Z pair) cost $25-50 total.
• 电源： Meanwell LRS-350-24 (350W) or LRS-500-24 (500W). Search "Meanwell LRS-350-24 official store" on AliExpress. Counterfeit Meanwells are common — check the hologram sticker and verify with Meanwell's authentication app. Cost: $25-40.
• 树莓派替代方案： Raspberry Pis are still expensive and hard to find. Great alternatives: BTT CB1 (CM4-compatible, $30-40), Orange Pi 3 LTS ($35-45), or a used Dell Wyse 3040 thin client ($40-60). Check ourKlipper setup guide for compatibility details.
• 床加热器： Silicone heater mats from AliExpress work well. Match the voltage to your PSU (24V). A 300x300mm 750W mat for a V2.4 350 is ~$20-30. Verify the thermistor type (NTC 100K is standard for Voron).

V2.4 350 的预计成本： $100-140 for board, drivers, PSU, and Pi alternative.

热端和挤出机

• 最佳克隆： TriangleLab makes excellent hotend clones — their Dragon SF/HF and Rapido clones are nearly indistinguishable from the originals. Buy from "TriangleLab Official Store" on AliExpress. Cost: $20-35.
• 高级选项： Phaetus Dragon ($40-50), Revo Voron ($50-70), or Slice Engineering hotends ($60-80) are available on AliExpress. These are genuine products with authorized sellers.
• 挤出机： The Voron StealthBurner integrated extruder works great. Buy the kit from TriangleLab or Mellow Store for $15-25. For a separate extruder, the Sherpa Mini or LGX Lite are excellent choices — search "Sherpa Mini extruder kit" on AliExpress ($25-35).
• 喷嘴： Buy genuine E3D or Slice Engineering hardened nozzles for longevity. Avoid 100-pack cheap nozzle sets — they have inconsistent orifice sizes that ruin print quality.

V2.4 350 的预计成本： $30-60 for hotend + extruder setup.

印刷零件 — JLCPCB 和 PCBWay

您不需要 3D 打印机来构建 Voron。使用在线打印服务：

• JLCPCB 3D打印： Select ASA or ABS material. Upload the STL files from the Voron GitHub repository. JLCPCB's SLA and SLS options are excellent for precision parts. Cost for a full Voron part set: $30-50.
• PCB方式： Similar pricing to JLCPCB. Both offer ASA material with good dimensional accuracy. Turnaround is 5-10 days.
• 使用规格： ASA material (better UV resistance than ABS), 0.2mm layer height, 100% infill for structural parts (toolhead, motor mounts), 40% infill for non-structural parts. Select "vapor smoothing" option if available for a factory-like finish.
• 要避免什么： PLA or PETG parts — they'll deform in the enclosed Voron environment. Avoid the cheapest option (CNC machining in aluminum is expensive and unnecessary for most parts).

预计费用： $30-50 for a full set of Voron printed parts.

硬件 — 螺钉、螺母、垫片

Voron BOM 需要 M2、M3、M4 和 M5 螺钉、螺母、垫圈和垫片的特定组合。您可以从速卖通购买完整的硬件套件，价格为 15-25 美元——搜索“Voron hardware kit”并寻找“Mellow Store”或“TriangleLab”等卖家。购买单个紧固件的成本相似，但工作量要大得多。买一套就可以了

安全——避免假冒零件

假冒组件是自采购的最大风险。以下是如何保持安全：

• 明纬电源： The most commonly counterfeited part. Only buy from the "Meanwell Official Store" on AliExpress or authorized distributors. Verify the hologram sticker with the Meanwell app.
• BTT 板： Buy only from "BigTreeTech Official Store" on AliExpress. Counterfeit BTT boards have lower-quality components and no firmware support.
• 盖茨腰带： Look for the Gates logo and part number printed on the belt. Genuine Gates belts have a smooth surface; counterfeit ones are rough.
• 热敏电阻： NTC 100K thermistors are cheap ($1-2 each from reputable sellers). Avoid bulk packs of 20 for $4 — they have wildly inconsistent beta values.
• 查看卖家评分： Only buy from sellers with 97%+ positive feedback and 500+ sales. Read recent reviews. Avoid sellers with generic store names ("shop12345678" type names are red flags).
• 使用速卖通买家保护： Always use AliExpress standard shipping (which includes tracking and buyer protection). If a part doesn't match the listing, file a dispute immediately.

速卖通推荐卖家

Here's a curated list of sellers we've verified through multiple orders. This list changes over time, so we update it regularly. Check ourAliExpress guide for the most current version.

• 框架： RobotDigg, ZYLtech
• 直线导轨： LDO Motors Store, Ootdty Official Store, Dongguan DaGuang Hardware
• 运动（皮带、滑轮）： TriangleLab Official Store, Mellow Store
• 电子产品： BigTreeTech Official Store, Meanwell Official Store
• 热端： TriangleLab Official Store, Phaetus Official Store, Mellow Store
• 硬件套件： Mellow Store, TriangleLab Official Store
• 面板（亚克力/PC）： Custom-cut from your local supplier or TuoQi Store on AliExpress

完整的 BOM 采购清单

从官方 Voron GitHub 存储库下载 Voron BOM Excel/CSV。使用此清单来跟踪您的采购：

1. 为您的模型（V0.2、Trident 或 V2.4）创建 BOM 电子表格的副本
2. 将每个订单项标记为“速卖通”、“淘宝”、“本地”或“打印服务”
3. 添加预计成本和实际成本列
4. 添加“卖家”列并填充 AliExpress 商店名称
5. 添加“状态”列（已订购、已到达、已测试、已安装）
6. 分批下订单（首先是框架，然后是电子产品，然后是运动等），以避免等待某个项目阻碍构建
7. 每个组件到达时都对其进行测试 - 不要等到组装日

如果这听起来像是太多的电子表格工作，我们的小程序可以处理整个 BOM 采购流程。我们维护一个包含经过验证的卖家、当前价格和库存水平的实时数据库。联系我们，我们将向您发送包含链接和价格的完整采购清单。