Canadian CNC Excellence Showcase: What Simultaneous 5-Axis Work Actually Requires
This page is for engineers and sourcing teams who buy machined parts against North American prints. We break down what makes a five-axis process reliable, which geometries justify it, and which ones do not. You should be able to judge a supplier's setup and inspection method after reading it.
How to read this showcase
Every section below answers one question an engineer asks before releasing a five-axis job.
What simultaneous five-axis motion changes on the part
Rotary axes are not a feature list. On a simultaneous five-axis machine, the tool tip stays normal to the surface while the A and B axes move under load. That single behavior decides the surface finish on a contoured blade, the chip evacuation in a deep cavity, and whether you can reach five faces in one setup instead of four.
Where three-axis work needs a dedicated fixture per face, five-axis work lets you tilt the part and cut the flank of a rib with the side of the tool. Tool length drops, so deflection drops with it. On a 4,000 mm long aerospace rail, that difference shows up as a straighter wall and fewer witness marks where a re-fixtured joint used to sit.
The trade-off is setup discipline. A tilting table adds stack-up error that a three-axis vise never has. You have to know the rotary centerline within a few microns, and you have to probe the part after clamping, not before.
- 1One setup, five facesCuts the number of datums and the re-clamp error that comes with them
- 2Short, stiff toolsBetter finish in deep pockets, less chatter on thin floors
- 3Contoured surfacesImpeller blades, port geometry, and organic housings cut with the ball nose held normal
When five-axis pays off, and when it is the wrong call
Five-axis is the right answer when a part is wide, has features on multiple faces, and carries tight true-position callouts between those faces. A manifold block with cross-drilled ports, a robot wrist housing, an EV inverter case with angled bosses. In those cases, one setup removes the dimensional argument between operations.
It is the wrong answer for a simple prismatic plate with a few holes and a pocket. A three-axis machine with a good vise will hit the same tolerance, quote lower, and ship faster. We push that work to our 27 three-axis machines and keep the five-axis spindles for geometry that needs them.
There is a middle ground. Parts with one angled face or a single compound hole often run better on a four-axis mill with a trunnion, or on a mill-turn center that cuts the OD and the cross-features without a second chucking. Choosing between these is a fixture question as much as a machine question.
Matching the part to the machine and the travel
Pick the configuration by geometry first, then by envelope.
| Part type | Best configuration | Typical envelope | Why |
|---|---|---|---|
| Simple plate, holes, pocket | 3-axis | 500 × 500 × 450 mm | One vise, three datums, lowest cost |
| Angled face or compound hole | 4-axis with trunnion | 500 × 310 × 200 mm | Rotation without full simultaneous control |
| Multi-face housing, tight true position | Simultaneous 5-axis | 600 × 600 × 600 mm | Five faces in one setup, short tools |
| Contoured blade or organic surface | Simultaneous 5-axis | 750 × 1,150 × 550 mm | Tool tip held normal to surface |
| Long rail or beam | 5-axis gantry | 4,000 × 400 × 150 mm | Length with rotary access at both ends |
| Shaft with cross-features | Mill-turn | Ø400 mm rotary table | OD and cross-holes without re-chucking |
Holding ±0.005 mm over a full batch
A single good part proves nothing. The number that matters is whether the tenth part measures like the first. That comes down to three habits: thermal stability, tool wear tracking, and probing the part in the fixture after clamping.
We run raw material checks before cutting. Aluminum 7075 and 17-4PH behave very differently under the same cutter, so the feeds and the finishing pass are set per lot rather than copied from a library. In-process monitoring catches a drifting dimension before the run finishes, not after.
Finish is a separate decision from tolerance. A sealing face may need Ra 0.8–1.6 μm, while a structural pocket is fine at Ra 1.6–3.2 μm as machined. Specifying the finish per surface keeps cycle time where it belongs instead of polishing the whole part.
- 1Raw material checkGrade and hardness verified before the first cut
- 2In-process probingRotary centerline and part position confirmed in the fixture
- 3Final inspection100% before shipment, reports on request
What to check before you release a five-axis job
Ask for the machine list, not a brochure. The count of simultaneous five-axis centers tells you whether your job will wait in a queue behind someone else's. Ask which machine will run the part and what its travel is. A shop that quotes a 4,000 mm rail on a 600 mm machine has not read the drawing.
Ask how the shop proves the part. Reports on request is a weak answer. You want to know whether the first article is measured on a CMM, whether the rotary centerline is calibrated, and whether the same fixture is used for the production run. That is where batch variation comes from.
Certifications matter when your part carries them downstream. ISO 9001:2015 covers the general system, IATF 16949:2016 for automotive, ISO 13485:2016 for medical, ISO 27001:2022 for information handling on customer files. If the part feeds a regulated assembly, the shop's scope has to match.
Confidentiality is part of the release too. Uploads are handled as confidential, and an NDA is available on request before drawings change hands.
Material groups and the grades we run
| Group | Common grades | Notes for five-axis work |
|---|---|---|
| Aluminum | 6061-T6, 7075, 2024, 6082, ADC12 | Free cutting, watch thin floors and chatter |
| Stainless | 303, 304, 316L, 17-4PH | Work hardens; keep the cutter moving |
| Steel | 1018, 1045, 4140, 4340, tool steel | Pre-hardened grades need lower depth of cut |
| Copper and brass | C110, C36000, beryllium copper | Gummy; sharp edges and good coolant |
| Titanium and special | TC4 (Ti-6Al-4V), Inconel, magnesium | Heat at the edge; feeds set conservatively |
| Plastics | POM, PEEK, PC, ABS, carbon fibre | Clamp pressure matters more than speed |
Questions engineers ask before releasing a job
How is simultaneous five-axis different from 3+2 positioning?
3+2 tilts the table to an angle and then cuts with only the linear axes moving. It is fast and rigid, and it is fine for flat faces that happen to sit at an angle.
Simultaneous five-axis moves all five axes at once, so the tool tip stays normal to a curved surface. That is what a blade, a port, or an organic housing needs. The two are often used on the same part: 3+2 for the flats, simultaneous for the contours.
What part size can you actually machine?
Maximum processing size is 4,000 mm. Large gantry travel is 4,000 × 400 × 150 mm. Mid-size five-axis centers run 750 × 1,150 × 550 mm and 600 × 600 × 600 mm.
Smaller 5-axis cells cover 500 × 500 × 450 mm and 500 × 310 × 200 mm, with a Ø400 mm rotary table for round parts.
How do you hold tolerance on a batch, not just one part?
Tolerance is ±0.005 mm (±0.0002 in) on qualifying features, with a 99.99% qualification rate. Batch control comes from probing the part in the fixture, tracking tool wear, and keeping the same fixture for the whole run.
Inspection is 100% before shipment, covering raw material check, in-process monitoring, and final inspection. Reports are available on request.
Which finishes can be applied after machining?
Anodizing in clear, color, hardcoat, and conductive versions. Electroless nickel, zinc, silver, and gold plating. Powder coating and black oxide. Bead blasting, tumbling, brushing, and polishing.
Laser marking and engraving are available with a minimum character height of 1.5 mm. Match the finish to the function: hardcoat for wear, conductive anodize for grounding, bead blast for a matte cosmetic surface.
What is the minimum order quantity, and how fast can parts ship?
There is no minimum order quantity. We run from a single prototype to 10,000+ part runs.
Quotation and free DFM analysis come back within 12 hours, production can start within 24 hours, and parts ship in 3–5 days.
Do you sign an NDA before I send drawings?
Yes. An NDA is available on request, and uploads are handled as secure and confidential.
If your program needs a specific information-handling scope, our ISO 27001:2022 certification covers that side of the process.
Send the drawing and get a process plan back
Upload a STEP file and we will come back with a quote, a DFM note on any feature that will not cut as drawn, and the machine we plan to run it on.
12-hour quoteDFM analysis included100% inspection
