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Impression 3D et CNC
Du prototype à la production.

Services

CNC Machining Services

Milling, turning, routing, 5-axis, precision, large-part, and Swiss machining — quoted online from your CAD.

Use this landing to choose the CNC path that matches your geometry. Each child page covers machines, materials, tolerances, and design notes.

  • Tight-tolerance metals
  • Prototype to production lots
  • Instant CNC quote
services_lp_cnc_quote_btn CNC machining capabilities
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How CNC machining works

A cutter removes stock from plate or bar along a programmed toolpath until the remaining metal or plastic matches the CAD.

  1. Read the CAD

    Upload STEP (preferred) with critical dimensions called out on the drawing or in the file.

  2. Pick the machine path

    Pick milling, turning, 5-axis, Swiss, or large-part based on the geometry.

  3. Set alloy and finish

    Choose alloy, finish, and inspection level on the quote.

  4. Machine and inspect

    We machine, inspect, and ship. Dates and extras stay on the quote line.

What is CNC machining

CNC machining is subtractive manufacturing. Mills, lathes, and routers cut production alloys and engineering plastics from known stock. The process holds threads, bores, and mating faces that most as-printed parts cannot hold without a secondary operation.

On AIHFABS you upload STEP (preferred) once. The quote maps milling, turning, 5-axis, Swiss, routing, or large-part work to the same geometry, then adds anodize, blast, or inspection on that ticket.

Main CNC technologies

Most jobs start on milling or turning. 5-axis and Swiss cover compound angles and small, slender parts. Routing and large-part pages sit in the list below.

CNC Milling Services

CNC Milling Services

CNC Milling Services use computer numerical control (CNC) mills to cut workpieces with rotating tools according to programmed toolpaths.

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CNC Turning Services

CNC Turning Services

CNC Turning Services use computer numerical control lathes to remove material while the workpiece rotates at high speed and the cutting tool feeds along a set path.

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Swiss CNC Machining

Swiss CNC Machining

Swiss CNC Machining Services is a precision turning technology designed for small-diameter, slender, highly complex, and ultra-high-precision parts.

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What this CNC service is good at 鈥?and where it is not

Choose CNC when the drawing wants stock properties and repeatable faces. Move to 3D printing when the shape is expensive to fixture.

Strengths

  • Drawing-level tolerances Typical 卤0.05鈥?.10 mm; precision and Swiss pages list tighter grades.
  • Real production alloys Aluminum, steels, stainless, titanium, and plastics such as POM, PEEK, and PC from plate or bar.
  • Repeatable cosmetic faces Machined texture plus standard finishes: anodize, blast, passivate, paint.
  • Threads and fits in one setup Tapped holes, bearing bores, and sealing grooves without a print-then-machine hop for many jobs.
  • Better economics as quantity grows Once fixtures exist, extra pieces cost machine time, not a full additive rebuild.
  • Homogeneous stock No layer lines. Strength follows the alloy, not the build orientation.

Limits

  • Geometry has a cost Deep pockets, internal lattices, and undercuts need extra setups or 5-axis time.
  • Stock waste You pay for the billet, including the chips. Hollow or organic shapes are usually cheaper to print.
  • Lead time follows setups A simple 2.5-axis plate can be fast; a five-face titanium part waits on programming and fixtures.
  • Thin walls and deep ribs Chatter and tool reach set a floor that powder-bed plastics do not have.
  • One-off cosmetics can cost more A single visual model is often faster and cheaper in SLA than in a mill.
  • Very large organic shapes Routing and large-part CNC exist, but they are not a substitute for every printed sculpture.

CNC machining capabilities

Open a process for machines, materials, and design notes. Then upload CAD for a dated CNC quote.

8 procédés
CNC Machining Services

CNC Machining Services Metals & plastics

CNC machining removes material from solid stock with computer-controlled mills, lathes, and multi-axis centers.

Delai
From 1–5 business days depending on complexity and finish
Tolerance
±0.05 mm standard; tighter on request with drawing callouts
Tarif
Instant quote · typical prototype from $45

Matieres: Aluminum 6061 Aluminum 7075 Stainless Steel 304 Stainless Steel 316 Carbon Steel 1018 / 1045 Brass C360 Copper C110 Titanium Grade 5 (Ti-6Al-4V) Clear Acrylic (PMMA) Colored / Frosted Acrylic POM (Delrin / Acetal) Polycarbonate (PC)

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CNC Milling Services

CNC Milling Services Metals & plastics

CNC Milling Services use computer numerical control (CNC) mills to cut workpieces with rotating tools according to programmed toolpaths.

Delai
Simple 1–3 days; complex 3–7 days; batch 5–15 days
Tolerance
±0.01 mm standard; ±0.005 mm high precision
Tarif
Instant quote · typical prototype from $40

Matieres: Aluminum 6061 Aluminum 7075 Stainless Steel 304 Stainless Steel 316 Carbon Steel 1018 / 1045 Brass C360 Copper C110 Titanium Grade 5 (Ti-6Al-4V) Clear Acrylic (PMMA) Colored / Frosted Acrylic POM (Delrin / Acetal) Polycarbonate (PC)

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CNC Turning Services

CNC Turning Services Metals & plastics

CNC Turning Services use computer numerical control lathes to remove material while the workpiece rotates at high speed and the cutting tool feeds along a set path.

Delai
Simple 1–3 days; complex 7–10 days
Tolerance
±0.01 mm standard; ±0.001–0.002 mm high precision
Tarif
Instant quote · typical prototype from $35

Matieres: Aluminum 6061 Aluminum 7075 Stainless Steel 304 Stainless Steel 316 Carbon Steel 1018 / 1045 Brass C360 Copper C110 Titanium Grade 5 (Ti-6Al-4V) Clear Acrylic (PMMA) Colored / Frosted Acrylic POM (Delrin / Acetal) Polycarbonate (PC)

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5-Axis CNC Machining

5-Axis CNC Machining Metals & plastics

5-Axis CNC Machining is one of the most advanced subtractive manufacturing technologies in modern precision manufacturing.

Delai
From 3–7 business days depending on complexity
Tolerance
±0.02–0.05 mm on critical features when specified
Tarif
Instant quote · typical prototype from $80

Matieres: Aluminum 6061 Aluminum 7075 Stainless Steel 304 Stainless Steel 316 Carbon Steel 1018 / 1045 Brass C360 Copper C110 Titanium Grade 5 (Ti-6Al-4V) Clear Acrylic (PMMA) Colored / Frosted Acrylic POM (Delrin / Acetal) Polycarbonate (PC)

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Precision Machining Services

Precision Machining Services Metals & plastics

Precision Machining Services use high-precision CNC machine tools and related equipment to cut, form, and finish metals, plastics, and other materials at micrometer-level accuracy — meeting stringent requirements for dim…

Delai
From 3–8 business days (complexity dependent)
Tolerance
±0.005–0.01 mm; Ra 0.4–1.6 μm; CPK ≥ 1.33
Tarif
Instant quote · quoted to drawing / inspection grade

Matieres: Aluminum 6061 Aluminum 7075 Stainless Steel 304 Stainless Steel 316 Carbon Steel 1018 / 1045 Brass C360 Copper C110 Titanium Grade 5 (Ti-6Al-4V) Clear Acrylic (PMMA) Colored / Frosted Acrylic POM (Delrin / Acetal) Polycarbonate (PC)

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Large Part CNC Machining

Large Part CNC Machining Metals & plastics

Large Part CNC Machining is a professional manufacturing service that uses large-scale, dedicated CNC machine tools to cut workpieces that exceed the size or weight capacity of conventional equipment.

Delai
Quoted per project (fixturing and logistics driven)
Tolerance
Around ±0.025 mm on critical features; large spans project-dependent
Tarif
Project quote · fixturing and logistics driven

Matieres: Aluminum 6061 Aluminum 7075 Stainless Steel 304 Stainless Steel 316 Carbon Steel 1018 / 1045 Brass C360 Copper C110 Titanium Grade 5 (Ti-6Al-4V) Clear Acrylic (PMMA) Colored / Frosted Acrylic POM (Delrin / Acetal) Polycarbonate (PC)

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Swiss CNC Machining

Swiss CNC Machining Metals & plastics

Swiss CNC Machining Services is a precision turning technology designed for small-diameter, slender, highly complex, and ultra-high-precision parts.

Delai
From 3–7 business days; faster on repeat batches
Tolerance
±0.005 mm standard; down to ±0.0025 mm when specified
Tarif
Instant quote · most economical in batch runs

Matieres: Aluminum 6061 Aluminum 7075 Stainless Steel 304 Stainless Steel 316 Carbon Steel 1018 / 1045 Brass C360 Copper C110 Titanium Grade 5 (Ti-6Al-4V) Clear Acrylic (PMMA) Colored / Frosted Acrylic POM (Delrin / Acetal) Polycarbonate (PC)

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Typical lead time and tolerance

Values below are shop-typical. Drawing callouts on the quote override this table.

Procede Delai Tolerance Tarif Matieres
CNC Machining ServicesMetals & plastics From 1–5 business days depending on complexity and finish ±0.05 mm standard; tighter on request with drawing callouts Instant quote · typical prototype from $45 Aluminum 6061, Aluminum 7075, Stainless Steel 304, Stainless Steel 316, Carbon Steel 1018 / 1045, Brass C360, Copper C110, Titanium Grade 5 (Ti-6Al-4V), Clear Acrylic (PMMA), Colored / Frosted Acrylic, POM (Delrin / Acetal), Polycarbonate (PC)
CNC Milling ServicesMetals & plastics Simple 1–3 days; complex 3–7 days; batch 5–15 days ±0.01 mm standard; ±0.005 mm high precision Instant quote · typical prototype from $40 Aluminum 6061, Aluminum 7075, Stainless Steel 304, Stainless Steel 316, Carbon Steel 1018 / 1045, Brass C360, Copper C110, Titanium Grade 5 (Ti-6Al-4V), Clear Acrylic (PMMA), Colored / Frosted Acrylic, POM (Delrin / Acetal), Polycarbonate (PC)
CNC Turning ServicesMetals & plastics Simple 1–3 days; complex 7–10 days ±0.01 mm standard; ±0.001–0.002 mm high precision Instant quote · typical prototype from $35 Aluminum 6061, Aluminum 7075, Stainless Steel 304, Stainless Steel 316, Carbon Steel 1018 / 1045, Brass C360, Copper C110, Titanium Grade 5 (Ti-6Al-4V), Clear Acrylic (PMMA), Colored / Frosted Acrylic, POM (Delrin / Acetal), Polycarbonate (PC)
CNC Routing ServicesPlastics & composites From 2–4 business days Medium precision (~±0.025 mm class) Instant quote · typical panel job from $30 Solid Hardwood, MDF, Plywood / Baltic Birch, Clear Acrylic (PMMA), Colored / Frosted Acrylic, POM (Delrin / Acetal), Polycarbonate (PC)
5-Axis CNC MachiningMetals & plastics From 3–7 business days depending on complexity ±0.02–0.05 mm on critical features when specified Instant quote · typical prototype from $80 Aluminum 6061, Aluminum 7075, Stainless Steel 304, Stainless Steel 316, Carbon Steel 1018 / 1045, Brass C360, Copper C110, Titanium Grade 5 (Ti-6Al-4V), Clear Acrylic (PMMA), Colored / Frosted Acrylic, POM (Delrin / Acetal), Polycarbonate (PC)
Precision Machining ServicesMetals & plastics From 3–8 business days (complexity dependent) ±0.005–0.01 mm; Ra 0.4–1.6 μm; CPK ≥ 1.33 Instant quote · quoted to drawing / inspection grade Aluminum 6061, Aluminum 7075, Stainless Steel 304, Stainless Steel 316, Carbon Steel 1018 / 1045, Brass C360, Copper C110, Titanium Grade 5 (Ti-6Al-4V), Clear Acrylic (PMMA), Colored / Frosted Acrylic, POM (Delrin / Acetal), Polycarbonate (PC)
Large Part CNC MachiningMetals & plastics Quoted per project (fixturing and logistics driven) Around ±0.025 mm on critical features; large spans project-dependent Project quote · fixturing and logistics driven Aluminum 6061, Aluminum 7075, Stainless Steel 304, Stainless Steel 316, Carbon Steel 1018 / 1045, Brass C360, Copper C110, Titanium Grade 5 (Ti-6Al-4V), Clear Acrylic (PMMA), Colored / Frosted Acrylic, POM (Delrin / Acetal), Polycarbonate (PC)
Swiss CNC MachiningMetals & plastics From 3–7 business days; faster on repeat batches ±0.005 mm standard; down to ±0.0025 mm when specified Instant quote · most economical in batch runs Aluminum 6061, Aluminum 7075, Stainless Steel 304, Stainless Steel 316, Carbon Steel 1018 / 1045, Brass C360, Copper C110, Titanium Grade 5 (Ti-6Al-4V), Clear Acrylic (PMMA), Colored / Frosted Acrylic, POM (Delrin / Acetal), Polycarbonate (PC)

Les prix de depart concernent des prototypes simples. Le devis CAD fait foi.

CNC material selection

Each process lists the alloys and plastics it runs most often. Open Materials for the catalog, or mark Custom on the quote.

Toutes les matieres

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Avis réels d'ingénieurs, designers et passionnés.

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Alex L. · Fondateur de startup

Keep reading

Notes, materials, and cases sit next to this landing.

BlogProcess notes before you lock a machine path. MatériauxMetals and plastics with machining notes. Voir les success storiesProject cases from the shop. FAQFiles, inspection, and shipping.

CNC machining FAQ

Should I choose milling or turning?

Turning for revolved parts from bar; milling for prismatic parts from plate. Use 5-axis when undercuts or compound angles would take too many setups.

What tolerances can you hold?

Conventional CNC is typically ±0.05–0.10 mm; precision and Swiss pages list tighter grades. Drawing callouts override typical values.

Do you machine plastics and metals?

Yes. Aluminum and steels are the volume work; POM, nylon, and PEEK are common plastics. Materials are listed on each process page.

How is CNC priced online?

Stock volume, machine time, setups, and finish drive the total. Simple prototypes often start around $35–$80; 5-axis and large parts are quoted to the file.

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Engineering guide to custom CNC machined parts

CNC machining removes material from solid stock. Geometry, tool access and workholding determine whether a part is best milled, turned or made with multiple operations. Send the model with a drawing so our manufacturing team can review the critical features, material condition, surface requirements and inspection basis together.

Process selection: application, material and design constraints
Manufacturing routeTypical geometryReview before quoting
CNC millingPrismatic housings, pockets, brackets and mounting platesInternal corner radii, pocket depth, thin walls, tool reach and the number of setups.
CNC turningShafts, bushings, sleeves and rotational componentsDiameter-to-length relationship, workholding, concentric features, threads and cross-drilled operations.
5-axis machiningMulti-face parts, angled features and complex contoursTool and fixture clearance; fewer setups do not automatically make every feature accessible.
Swiss machiningSlender turned parts and small repeated componentsStock diameter, length, burr control and how the part is supported during cutting.
Routing / large-part machiningPanels, sheet-based parts and large structuresMaterial stability, support area, stock availability, handling and transport.

Specify the alloy, temper and stock condition

Aluminum 6061 and 7075 differ in strength, corrosion behavior and finishing response. Stainless steel grades balance corrosion resistance, strength and machinability differently. POM, nylon, PC and other engineering plastics need attention to moisture, temperature and dimensional stability. Identify the exact grade and condition; approve any proposed substitute before production.

Design pockets and walls for real cutting tools

Rotating end mills leave internal radii. Use accessible tool paths, allow sensible corner radii and avoid deep narrow pockets where tool deflection becomes difficult to control. Thin walls can move during cutting or after unclamping. Identify the faces that may be used for workholding and discuss an alternative split or assembly if a feature cannot be reached.

Apply datums and tolerances to function

Use a drawing to define datum references, fits, geometric controls, thread specifications and surface texture. Tighten only the dimensions that control assembly or performance. A general tolerance does not replace a specific fit, flatness or positional requirement. Confirm the tolerance standard and inspection method before manufacturing; do not infer a guaranteed capability from an example value.

Account for finishing in the dimension stack

Anodizing, plating and coatings can alter fit and surface behavior. State whether dimensions apply before or after finish, which threads and bores need masking, and which faces are cosmetic. Define acceptable tool marks or specify a texture requirement on the drawing. Deburring requirements matter on sealing edges, small cross-holes and assembled components.

First-article and repeat-order control

Identify critical-to-quality dimensions and request the inspection documentation needed for the project. Material traceability, dimensional reports and first-article approval must be agreed in the quote. Keep the approved revision, material condition and finishing specification with repeat orders so a reorder does not silently change the acceptance criteria.

Get an instant CNC quote

Upload CAD once. Compare milling, turning, 5-axis, and Swiss options before you place the order.

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