Inspection on every production order: dimensional reports, material certificates, salt spray and humidity testing, PVD adhesion and colour checks against an…
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Quality & inspection

Quality control - what is actually checked, and how

"We check every part" means nothing without a method. Here is exactly what we measure, with what instrument, and what you receive with the shipment.

Dimensional reportMaterial certSalt sprayAdhesion testColour master
Stainless steel figurine after final inspection
Inspection plan

Five checks, in order

StageMethod
1. Incoming materialPowder and filament batch recorded; certificates on request
2. In-processBuild parameters logged per job; layer inspection on first article
3. DimensionalCaliper, micrometer and CMM against the drawing; report per batch
4. AppearanceVisual against the approved master under defined lighting; colour measured for PVD
5. FunctionalSalt spray, humidity, adhesion, fit and torque tests as specified

Sampling follows MIL-STD-105E general inspection level II with an AQL you agree at quotation. Critical dimensions are 100% checked on first articles and on every batch after a tooling or process change.

Testing

Functional tests we can run before shipping

  • ✓Salt spray testing - 24 / 48 / 96 hours, neutral salt fog
  • ✓Humidity testing - constant 40 C / 90% RH chambers
  • ✓PVD adhesion - cross-hatch and tape pull
  • ✓Colour verification - against a signed master sample
  • ✓Fit and function - assembly checks on mating parts
  • ✓Torque and pull tests on hardware and clasps

Test reports are issued with the batch and reference the sample ID, so a result can always be traced back to the parts you received.

Inspection of a printed lattice part
Traceability

What comes in the box

Every production order ships with an inspection report listing the measured dimensions against the drawing, the material batch, the finish specification and the test results. Material certificates are supplied on request. If a dimension is out, we tell you before the shipment leaves - not after your customer finds it.

When something does go wrong, the corrective action is written down and the next batch is checked against it. Most of our long-running OEM accounts started with a problem we fixed.

FAQ

Frequently asked questions

Can I get a dimensional report with my order?

Yes, on every production order. It lists each dimension you flagged as critical, the measured value and the instrument used. For prototypes we supply it on request.

What AQL do you work to?

MIL-STD-105E, general inspection level II, with the AQL agreed at quotation - typically 1.0 for major defects and 2.5 for minor. Tell us if your customer requires something tighter.

Do you test the PVD coating?

Yes: adhesion by cross-hatch and tape pull, colour against the approved master, and salt spray for corrosion resistance. Reports carry a sample ID so results are traceable to your batch.

What happens if parts fail inspection?

They do not ship. We rework if the defect is reworkable, reprint if it is not, and tell you what happened with the corrective action. No batch leaves without a pass.

Request a quote

Get your quote within 48 hours

Upload a 3D file (STL, STEP, OBJ, 3MF) or just a photo / drawing. An engineer checks printability, flags anything that will not print, and replies with a clear price breakdown within 48 hours. From one prototype to 1,000+ pieces.

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Prefer email? dimension3dHAN@gmail.com