---
title: "5-Axis CNC Machining Services | Complex Geometry in One Setup | OpenSpindle"
description: "Get quotes for 5-axis CNC machining from independent machine shops. Contoured surfaces, deep pockets, and multiple faces in a single setup, in metal and plastic. Upload a model."
canonical: https://openspindle.com/capabilities/5-axis-machining
---

# 5-axis CNC machining from independent machine shops

Complex, contoured, and multi-face parts cut in a single setup. Fewer refixtures means tighter true position across features and faster cycles on organic geometry. Upload a model and hear back from shops running 5-axis machines.

## 5-axis machining shops on OpenSpindle

Real shops running 5-axis machining centers. See their equipment and talk to the person cutting your part.

[Browse all 5-axis machining shops](https://openspindle.com/manufacturers?capability=5-axis%20milling)

## Stock our 5-axis shops machine from solid

Nearly everything is cut from solid block or plate. Common materials are below; if yours is not here, ask when you request a quote.

- [Aluminum](https://openspindle.com/materials/aluminum.md) -- 6061 · 7075
- [Stainless steel](https://openspindle.com/materials/stainless-steel.md) -- 303 · 304 · 316
- [Carbon steel](https://openspindle.com/materials/carbon-steel.md) -- 1018 · 4140
- [Titanium](https://openspindle.com/materials/titanium.md) -- Grade 5
- [Brass](https://openspindle.com/materials/brass.md) -- C360
- [Copper](https://openspindle.com/materials/copper.md) -- C110
- [Delrin](https://openspindle.com/materials/delrin.md) -- Acetal
- [PEEK](https://openspindle.com/materials/peek.md)

## Tolerances

| Feature | With drawing | No callout |
| --- | --- | --- |
| Linear dimension | ±0.002 in | ISO 2768 Medium |
| Feature true position | ±0.003 in | ISO 2768 Medium |
| Profile of a surface | ±0.005 in | ISO 2768 Medium |
| Hole diameter (not reamed) | ±0.003 in | ISO 2768 Medium |
| Surface finish | 32-125 Ra | 125 Ra as-milled |

Cutting multiple faces in one setup keeps features referenced to the same datum, so true position across faces holds tighter than it would with refixturing. Call out the datum and the features that must relate to it.

## Threads, Inserts & Finishing

Tapped and cross-drilled holes, threaded bosses, counterbores, and pressed or heat-set inserts, cut in the same setup or as a secondary op.

Applied after machining. As-milled ships fastest; anodize, passivation, and plating are common on 5-axis metal parts.

| Finish | Materials | Adds | Stacks with |
| --- | --- | --- | --- |
| As-milled | All | +0 days | Anything |
| Bead blast | Metal, most plastics | +1-2 days | Before anodize |
| Anodize | Aluminum, titanium | +3-5 days | Bead blast |
| Passivation | Stainless only | +2 days | Bead blast |

Contoured surfaces on a 5-axis part often carry a cosmetic requirement. Note where finish matters and where it does not so the shop does not chase a spec you do not need.

## What Makes a Good RFQ

| Instead of | Send |
| --- | --- |
| "Complex part, need 5-axis" | "6061 aluminum impeller, 4 in dia, ±0.003 true position on the blade roots, qty 10" |
| "Machine all over" | "Profile of ±0.005 on the contoured face, ISO 2768-M elsewhere" |
| "Some holes to tap" | "6x 1/4-20 UNC on the angled boss face, referenced to datum A" |

Name the datum and the features that must relate to it. That is what makes single-setup 5-axis worth the price over 3-axis with refixturing.

## Industries Served

- Aerospace
- Defense
- Medical devices
- Automotive / motorsport
- Energy & turbomachinery
- Robotics
- Semiconductor
- Industrial / OEM

5-axis shops on OpenSpindle produce impellers, manifolds, structural brackets, and contoured housings for demanding industries, including AS9100 and ITAR-registered shops.

## Frequently Asked Questions

### What is the difference between 3+2 and full 5-axis?

3+2 (positional) machining tilts the part to a fixed angle, locks the two rotary axes, and cuts in 3 axes from that orientation. It reaches multiple faces in one setup at lower cost. Full simultaneous 5-axis moves all five axes at once to follow contoured or organic surfaces, like blades and impellers. Many parts only need 3+2; shops pick the right approach from your model.

### When is 5-axis worth it over 3-axis?

When a part has features on several faces, deep pockets that need a shorter tool reaching in at an angle, or true continuous contours. Cutting it in one setup avoids refixturing error and often runs faster, which can beat 3-axis on both accuracy and price for complex parts.

### How does single-setup machining improve tolerances?

Every time a part is unclamped and refixtured, some datum error creeps in. Holding it once and reaching every face keeps all features referenced to the same datum, so true position across faces holds tighter. Call out the datum on your drawing.

### What tolerances can 5-axis machining hold?

Linear dimensions commonly hold ±0.002 in and true position around ±0.003 in, with surface profile near ±0.005 in on contoured faces. Tighter is possible with grinding or in-process probing; call out the critical features.

### Can you machine impellers, blades, and organic shapes?

Yes. Simultaneous 5-axis is built for turbomachinery, impellers, blades, and freeform surfaces where the tool has to stay normal to a curving face. Send a solid model (STEP or Parasolid) so the shop can program the toolpaths.

### Is there a minimum order?

No. Shops machine single prototypes and production runs. Expect a setup and programming charge on one-offs that drops on repeat orders, since 5-axis programming is a real part of the cost.

### What file formats should I send?

A solid model is best for 5-axis: STEP, Parasolid (X_T), or IGES, plus a dimensioned PDF for critical features. Include material, the datum scheme, tolerances on critical features, quantity, and any finish.

## Other Capabilities

- [CNC Machining](https://openspindle.com/capabilities/cnc-machining.md)
- [CNC Turning](https://openspindle.com/capabilities/cnc-turning.md)
- [Swiss Machining](https://openspindle.com/capabilities/swiss-machining.md)
- [EDM & Wire EDM](https://openspindle.com/capabilities/edm.md)
- [Waterjet Cutting](https://openspindle.com/capabilities/waterjet-cutting.md)
- [Welding](https://openspindle.com/capabilities/welding.md)
- [Grinding](https://openspindle.com/manufacturers?capability=Grinding)
- [Inspection / QA](https://openspindle.com/manufacturers?capability=Inspection%20%2F%20QA%20(CMM))

## Design Notes That Move Your Price

Not a definition of 5-axis. The design choices that move your price and lead time.

- **3+2 beats simultaneous when it can:** Positional 3+2 reaches multiple faces without the programming and cycle-time cost of full simultaneous motion. Reserve continuous 5-axis for true contours like blades and impellers, not flat faces at an angle.
- **One datum scheme, referenced everywhere:** The whole advantage is holding the part once. Tie your critical features to a single datum so the shop can inspect them from the same reference the machine cut from.
- **Tool reach sets the wall:** A 5-axis machine can tilt to shorten the tool reaching into a deep pocket, but a long, thin tool still deflects. Generous fillets and reachable geometry keep the shop off special tooling.
- **Model quality drives programming:** Toolpaths are generated off your solid model. A clean STEP or Parasolid with no gaps or slivers programs fast; a messy surface model adds hours before a chip is cut.

## Get 5-axis machining quotes

Upload a model once and compare quotes from independent 5-axis shops.