5-axis CNC machine on a clean production floor

Quoting guide

No minimum order: why one-off and low-volume CNC works

"What's your minimum order?" is often the first question buyers ask, having been caught out by injection molding or casting, where a steel mold runs into five figures and cannot be justified for a handful of parts. CNC machining is different: there is no hard tooling. We cut your part from a solid block using the same machines and the same program whether you need 1 piece or 1,000. That is why Fenva has no minimum order quantity. We are glad to make a single prototype and carry that exact part through to production.

Why no tooling changes everything

Molding and casting require a dedicated mold, built before a single good part exists. That mold cost is spread across the run, so each of 10 parts carries a heavy share of it, while at 10,000 it is negligible. That is what an MOQ is: a floor set high enough to make the tooling pay for itself. CNC has no equivalent. Its "tooling" is a CAD program and standard cutters we already own. The setup cost is real but modest, and it is the same setup whether the run is one part or a hundred. So one piece is feasible and priced honestly, never loaded with a mold that is used only once.

When CNC beats casting and 3D printing at low volume

Each process owns a different stretch of the volume curve.
ProcessHard tooling?Best volumeLow-volume costMaterial & accuracy
CNC machiningNo1 to a few thousandViable at qty 1Full metals, tight tolerances
Injection molding / die castingYes (expensive)Thousands+Tooling kills itLimited to mold alloys / resins
3D printing (metal / plastic)No1 to dozensCheap for 1, scales poorlyLimited materials, looser tolerances / finish

3D printing is well suited to an early form-and-fit check, but it falls short precisely where a functional part cannot compromise: tight tolerances, true engineering metals, and a genuine machined surface finish. If your prototype must be 6061 or 316, hold a press fit, or carry load, CNC is usually the sound choice even at quantity one. Casting and molding become economical only once volume is high enough to spread the mold cost across the run; below that point, CNC reaches the first part faster and costs less overall.

The prototype-to-production path, same shop, same drawing

  • Prototype. One or two pieces to prove form, fit, and function. Quote in 48 hours, parts in roughly 10–15 business days.
  • Bridge / low-volume. A pilot batch while you finalize the design or wait on a forecast, with no commitment to a thousand units.
  • Production. Scale to repeat batches, built to the same approved drawing, on the same machines, with the same inspection.
  • Spares. Years later, re-order 5 of the same part, with no re-tooling and no MOQ penalty.

This matters because the part you approve as a prototype is the part you get in production: same program, same fixtures, same CMM and vision inspection. The quantity changes; the part doesn't.

From our floor: the best insurance on a first order is to run one piece, inspect it against your drawing, and approve it before the batch. With no MOQ, that costs you nothing but a few days, and it catches a drawing mismatch on piece one instead of across a hundred.

Cost-per-part falls with quantity, and that's fine

No MOQ does not mean a flat price. Cost per piece falls as volume rises, because setup, programming, and first-article inspection are spread across more parts, and because larger runs let us buy material in more efficient stock sizes. A small run remains viable and is priced honestly: you are welcome to order 5 parts, and the per-piece rate simply reflects the setup. Prove the part first, commit to volume second.

A new part carries one-time costs that are independent of quantity: CAM programming, machine setup and tuning with trial cuts to refine it, a custom fixture for many geometries, and an extra blank or two of raw material for those trials. Spread over hundreds of pieces, they disappear into the unit price; on a run of one or two parts, they account for most of the cost. That is why the same part costs less per piece at higher quantity. Even for a single part, we still buy the extra stock and run the trial cuts to prove a new setup, because that work is what makes the first part right. The no-minimum-order policy holds: we are glad to make a single part. This is simply what one part involves. For the full breakdown, see How a CNC part is priced.

Quick takeaways

  • CNC has no hard tooling, so one piece is genuinely feasible, and Fenva has no MOQ.
  • Below high volume, CNC beats casting (no mold cost) and 3D printing (real metals, tight tolerances, true finish).
  • Cost per part falls with quantity, but small runs stay viable and honestly priced.
  • Prototype, bridge, production, and spares all run from the same drawing, on the same machines, with the same inspection.
Get a quote in 48 hours, one piece or a thousand See the ordering process

「贵司起订量是多少?」这往往是买家最先关心的问题。之所以这样问,多半是此前在压铸或注塑上有过教训:开一套钢模动辄五位数,仅做几件根本无法摊平。CNC 加工不同,它没有硬模具。我们直接用整块金属铣出零件,使用同一台机床、同一段程序,无论您需要 1 件还是 1000 件。因此丰凡没有起订量,欢迎打样,并可将样件一路做到量产。

没有模具,一切就都变了

注塑和压铸需在产出首个合格件前,先行开制专用模具。这笔模具费需分摊至整批订单:若仅做 10 件,单件成本将大幅攀升;若做 10,000 件,则几乎可忽略不计。所谓起订量,本质即为强制摊平模具成本。CNC 加工无此项费用。其「工装」仅为加工程序及我们常备的标准刀具。装夹与调试虽产生成本,但数额较小;且加工 1 件与 100 件共用同一套程序,因此单件生产完全可行,报价真实透明,无需承担仅使用一次的模具费用。

低批量下,CNC 为什么比压铸和 3D 打印更值

在产量曲线上,每种工艺各管一段。
工艺要硬模具?最佳产量低批量成本材料与精度
CNC 加工1 至数千件1 件就可行全金属、严格公差
注塑 / 压铸是(贵)数千件以上模具费拖垮限模具用合金 / 树脂
3D 打印(金属 / 塑料)1 至数十件1 件便宜,放量不划算材料有限、公差与表面较松

3D 打印适用于早期外形及装配验证,但一旦涉及功能件,其局限性便显现出来:难以保证严格公差、缺乏真正的工程金属材质、表面质感非真实机加工效果。若样件必须采用 6061 或 316 材质、需满足过盈配合或承受载荷,即便仅制作 1 件,CNC 往往也是更务实的选择。压铸和注塑需待产量足够大以摊平模具成本时才具经济性;在此阈值之下,CNC 交付首件更快、综合成本更低。

打样到量产路线:同一家厂、同一张图

  • 打样。制作 1 至 2 件,验证外形、装配及功能。48 小时报价,约 10 至 15 个工作日出货。
  • 过渡/小批量。设计尚未最终定型或订单预测尚不明确时,先进行小批量试产,无需立即承诺上千件产量。
  • 量产。放量到批量复购,按同一张已确认的图、用同一台机、走同一套检测做出来。
  • 备件。数年后补订 5 件相同零件,无需重新准备工装,也无起订量门槛。

这一点很关键:您在打样阶段确认的零件,正是量产时交付的零件 —— 同一段程序、同一套夹具、同样的三坐标(CMM)与影像检测。

车间经验:首单最稳妥的做法,是先做一件、按您的图纸检验、确认合格后再开批量。在无起订量的前提下,这仅需几天时间,却能在首件就发现图纸偏差,而不是等到一百件全部做错。

单价随数量下降,这很正常

无起订量并不等于统一定价。单价确实会随数量上升而下降:装夹调试、编程、首件检验等成本被摊到更多零件上,原料也能按更经济的规格备料。但小批量同样可行、报价同样实在:您完全可以只做 5 件,单价中已相应计入调试成本。先验证零件,再承诺产量。

新零件均存在与数量无关的一次性成本:CAM 编程、调机与试切(需反复调试)、特定几何形状所需的自制专用夹具,以及为试切额外准备的毛坯料。分摊至数百件时,这些成本几乎可忽略;但若仅做一两件,它们便构成账单的主要部分。同一零件,数量越多,单件成本越低。即便仅做一件,我们也需额外准备一两件毛坯——新工艺需试切调机,这些材料成本已计入该订单。无起订量原则不变:单件亦可生产,此即单件生产的实际成本。完整定价拆解请参阅《CNC 零件如何定价》

选型要点一览

  • CNC 没有硬模具,单件加工切实可行,丰凡没有起订量。
  • 在未达大批量时,CNC 相比压铸(省去模具费)与 3D 打印(真实金属、严格公差、真实表面)更具性价比。
  • 单价随数量下降,但小批量同样可行、报价同样实在。
  • 打样、过渡、量产、备件,全走同一张图、同一台机、同一套检测。
来图定制,1 件或 1000 件,48 小时内报价 查看下单流程
5-axis CNC milling at Fenva Precision

One piece or a thousand

No minimum order, prototype to production.

Send your model and drawing, quote in 48 hours; we machine strictly to print and stand behind the result.