What tolerances can CNC hold in Aluminum 6061-T6?

5-Axis CNC Machining parts in Aluminum 6061-T6 hold ± 0.05 mm (ISO 2768-fH) with a ± 25 µm tool step-over.

What is the maximum build envelope?

800 × 500 × 400 mm. Larger parts can be split and joined — talk to us before quoting.

Is this workflow suitable for Robotics & Automation production?

Yes. CNC in Aluminum 6061-T6 is routinely shipped into Robotics & Automation programs with traceable material certs and AS9100-aligned QA.

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CNC Aluminum 6061-T6 for Robotics.

Lightweight end-of-arm tooling that survives 10⁶+ duty cycles without warp or backlash. 3DBuildBot delivers 5-axis cnc machining parts in Aluminum 6061-T6 with full material traceability and instant online quoting.

Workhorse aerospace alloy with excellent machinability and anodize-friendly finish. Subtractive precision machining for metals and engineering plastics at production scale.

End-effectors
Gripper jaws
Cable management
Sensor mounts

Designed for high-cycle automation lines and collaborative robotics cells.

Quote on this capability ↓ (process & material pre-loaded)

CAD_INGEST // READY

CLIENT_SIDEv4.2.1

Drop your CAD file to get an instant quote

Drag & drop or browse — we'll analyze the geometry on your machine. Nothing is uploaded.

.STL.STEP.OBJ

MAX_VOL

250 MB

GEOMETRY

WATERTIGHT

PARSER

WASM // LOCAL

Demo mode · drop any .stl / .step / .obj — we'll simulate analysis

Specifications

CNC · Aluminum 6061-T6 baseline

Typical values for robotics parts produced in our certified facilities.

Process

5-Axis CNC Machining

Dimensional tolerance: ± 0.05 mm (ISO 2768-fH)
Resolution: ± 25 µm tool step-over
Build envelope: 800 × 500 × 400 mm
Typical lead time: 2–4 business days

Material

Aluminum 6061-T6

Tensile strength: 310 MPa
Flexural modulus: 68.9 GPa
Heat deflection (HDT): 580 °C
Density: 2.7 g/cm³
Elongation at break: 12 %
Certifications: AS9100 · ASTM B221 · Mill cert on request

Values represent typical XY-plane properties for as-built parts. Z-axis and post-processed specs available on request — every shipment includes a material certificate.

Production workflow

How a CNC part in Aluminum 6061-T6 ships.

From CAD upload to crated delivery. Every step is timestamped on the digital traveler that arrives with your parts.

01
DFM review
Applications engineer validates thin walls, draft angles, and CNC-specific constraints within 4 business hours.
02
Build prep
Nesting, support generation, and tool-path optimization on calibrated 5-Axis CNC Machining machines.
03
Production
Lights-out runs on certified aerospace-grade alloy stock. Operator initials logged at every shift change.
04
QC & ship
CMM verification on critical dimensions, then DDP shipping with full traceability.

Post-processing

Finishing options

Every CNC part ships with standard post-processing included. Upgrade at quote time for parts that need to look (or behave) like production.

As-machined (Ra 1.6 µm)
Standard surface; included.
Bead-blast matte
Uniform matte; hides tool marks.
Type II / Type III anodize
Color or hard-coat; mil-spec available.
Powder coat (RAL)
Cosmetic + corrosion protection.

Typical applications

What Robotics teams print here.

Real parts our robotics customers have shipped using this exact configuration in the last 90 days.

End-effectors
CNC · Aluminum 6061-T6
Gripper jaws
CNC · Aluminum 6061-T6
Cable management
CNC · Aluminum 6061-T6
Sensor mounts
CNC · Aluminum 6061-T6

Lead time

2–4 business days

Includes DFM review, production, QC, and DDP shipping. Express tier available (next-day) at quote time.

Customer story

From the field

A representative robotics engagement using CNC in Aluminum 6061-T6.

1,240

Parts

3 days

Lead time

0.4%

Reject rate

"We were quoting CNC Aluminum 6061-T6 parts across three vendors with two-week lead times. 3DBuildBot collapsed that to a single dashboard with same-day DFM feedback. It's how we ship hardware on a weekly cadence now."

Engineering Lead

Robotics & Automation program

FAQ

CNC Aluminum 6061-T6 — common questions

What tolerance can I actually hold on a CNC part?: Our published baseline is ± 0.05 mm (ISO 2768-fH), measured XY-plane on as-built parts. Tighter tolerances (down to ± 0.025 mm) are available on call-out features with a tolerance stack review.
Is Aluminum 6061-T6 certified for robotics use?: Aluminum 6061-T6 carries AS9100, ASTM B221, Mill cert on request. Designed for high-cycle automation lines and collaborative robotics cells. Full certificates of conformance ship with every order.
What's the maximum part size?: Our build envelope for this process is 800 × 500 × 400 mm. Larger assemblies are split, printed in sections, and bonded or mechanically joined — ask for a DFM consult.
Can you scale this from prototype to production?: Yes. The same machines and material lots used for your prototype run your production order — no re-qualification needed. Volume pricing kicks in at 50 units and again at 500.
How is pricing calculated?: Material volume × per-cm³ rate + machine setup fee + post-processing + platform markup. The widget above shows the live breakdown — no hidden fees at checkout.

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