Question 1

What is the standard lead time for CNC machined parts?

Accepted Answer

Our standard lead time is typically 10-15 business days. However, we offer expedited "Rapid Prototype" services that can deliver parts in as little as 5-7 days, depending on material availability and secondary finishing requirements.

Question 2

What tolerances can your CNC machining services achieve?

Accepted Answer

We provide a standard tolerance of ±0.005" (±0.127mm) per ISO 2768-m. For high-precision projects, we can maintain tight tolerances down to ±0.001" (±0.025mm) through controlled machining environments and CMM verification. Use our ***interactive ISO 2768 chart***(/resources/charts/iso-2768-tolerance-chart), ***tap drill calculator***(/resources/tools/drill-tap-chart), and ***drill bit size chart***(/resources/charts/drill-bit-size-chart) when specifying holes and threads.

Question 3

Which materials are most cost-effective for CNC machining?

Accepted Answer

Aluminum 6061-T6 is the most economical metal due to its excellent machinability. For plastics, Acetal (Delrin) is the best choice for a balance of cost, strength, and dimensional stability during the subtractive process.

Question 4

Do you offer 5-axis CNC machining?

Accepted Answer

Yes. We utilize 5-axis CNC machining centers to produce complex geometries in a single setup. This reduces tolerance stack-up, eliminates expensive fixturing, and lowers the overall cost for intricate aerospace or medical components.

Question 5

Can you machine parts from a 3D CAD model without a 2D drawing?

Accepted Answer

While we can machine directly from CAD files (STEP, IGES, Parasolid), we highly recommend a 2D technical drawing for features requiring tight tolerances, specific thread classes, or GD&T (Geometric Dimensioning and Tolerancing).

Question 6

What is the maximum part size you can machine?

Accepted Answer

Our maximum machining envelope for milling is 40" x 20" x 20". For CNC turning, we can handle diameters up to 12" depending on the length and the specific lathe or mill-turn center utilized.

Question 7

Do you provide material certifications and inspection reports?

Accepted Answer

Absolutely. We provide Material Test Reports (MTRs) and Certificate of Conformance (CoC) upon request. We also offer Full Inspection Reports and First Article Inspection (FAI) per AS9102 standards.

Question 8

What surface finishes are available for CNC parts?

Accepted Answer

We offer a full suite of finishes, including As-Machined (Ra 125-32), Bead Blasting, Type II & III Anodizing (MIL-A-8625), Electroless Nickel Plating, Passivation, and Powder Coating.

Question 9

How can I reduce the cost of my CNC machined parts?

Accepted Answer

To lower costs: 1) Increase internal corner radii to allow larger tools, 2) Minimize deep pockets, 3) Limit the use of tight tolerances to functional features only, and 4) Design for fewer setups (standard 3-axis).

Question 10

Do you support high-volume production runs?

Accepted Answer

Yes. Our facility is scalable, supporting everything from single-unit prototypes to high-volume production of 10,000+ units. We utilize automated cell integration for recurring orders to ensure consistent quality and competitive pricing.

Custom CNCMachining Services

Custom CNCMachining Services