Quality control in additive manufacturing can't be an afterthought. Without structured inspection checkpoints, defects slip through, customers lose trust, and your team spends more time on reprints than production.
Why Quality Gates Matter
A quality gate is a defined checkpoint where a part must meet specific criteria before moving to the next stage. In additive manufacturing, this typically means inspections at three points: post-print, post-process, and pre-shipment.
Without these gates, problems compound. A dimensional error caught after shipping costs 10x more to fix than one caught at the printer. And the reputational damage is immeasurable.
Gate 1: Post-Print Inspection
The first checkpoint happens immediately after the print completes. Key checks include:
- Visual inspection: Layer adhesion, surface artifacts, stringing, warping
- Dimensional verification: Critical dimensions measured against CAD with calipers or CMM
- Support removal check: Ensuring supports came off cleanly without damaging features
Capture photos at this stage — they're invaluable for root cause analysis if issues arise later.
Gate 2: Post-Process Inspection
After washing, curing, sanding, or other finishing steps, verify that the process didn't introduce defects:
- Check for over-curing brittleness in SLA parts
- Verify surface finish meets spec after sanding or vapor smoothing
- Confirm no media tumbled into internal channels after bead blasting
Gate 3: Pre-Shipment Verification
Final check before the part leaves your facility. This is your last line of defense:
- Functional fit test if applicable
- Final cosmetic review against customer requirements
- Packaging verification to prevent shipping damage
Non-Conformance Reports (NCRs)
When a part fails inspection, document it systematically. An NCR captures what failed, why it likely happened, and what corrective action was taken. Over time, this data reveals patterns — maybe a specific orientation always causes warping, or a particular resin batch has issues.
More importantly, having NCR records shows customers you take quality seriously. It's the difference between "we hope it's good" and "here's the inspection record."
Digital vs Paper-Based QC
Paper checklists work for small operations but become unmanageable at scale. Digital QC systems offer clear advantages:
- Automatic photo capture linked to specific jobs
- Instant notifications when failures occur
- Searchable history for trend analysis
- Customer-facing quality reports on request
Building a Quality Culture
Tools alone don't ensure quality — your team needs to own it. Make inspection part of every operator's workflow, not a separate department's job. Reward catching defects early rather than punishing honest mistakes.
Pryysm embeds quality gates directly into the production workflow. Operators can't advance a job without completing required inspections, and NCRs are generated automatically when measurements fall outside tolerance. If you're ready to formalize your QC process, let's talk.
Ready to scale your operation?
See how Pryysm helps print farms grow from 5 to 50+ machines without losing control.
Book a Demo