See machining deviations
Compare measured profiles and dimensions with CAD to find the areas that need review.
OPTICAL DIMENSIONAL INSPECTION
Sheet metal inspection.
From CAD to report.
Scan flat parts and check profiles, hole diameters and positions against CAD, with records for first-part approval and delivery.
Precision inspection, designed for the shop floor
VQC / OPTICAL INSPECTION
DTMT HANGZHOU / Precision engineering. German origins.Scroll to explore ↓
01 / Machine scanningSee how VQC scans a partPosition the part, start the simulation and watch the contour appear.
VQC / 3D machine view3D VIEW
Preparing the 3D model…
Simulation · Illustrative dataPart positioned on support blocks
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Drag to orbit · Scroll to zoom · Arrow keys to orbit · + / − to zoomIllustrative part · Simulated data
Optical measurement accuracy±(30 + L/50) µmMPEE · L is the measured length in mm
Inspection method2D full contourProfiles, holes and local geometry in a single view
Digital inspection workflowCAD → Inspection reportFrom nominal geometry to traceable results
3D illustrates the capture of 2D contours. Machine configuration depends on the agreed specification.
02 / HOW IT WORKS
From CAD to report.
VQC_NT / Actual software interface
01 / 04
Load CAD
Select the matching CAD / DXF drawing or inspection plan. Nominal geometry and tolerances become the reference for the inspection.
DTMT HANGZHOU / YouTube
Visit our channelSee VQC in practice
03 / INSPECTION OPTIONS
What VQC can inspect
Profiles, holes and dimensions, shown in real inspection results.
VQC_NT Recorded inspection results
View full image
Profile comparison
Compare the measured outline with CAD to locate deviations, extra cuts or missing cuts.
Read the result: compare the nominal value with the measured value, then check the deviation against the tolerance for that dimension.
- Complex outlines
- Local contour deviations
VQC_NT Actual inspection plan
View full image
Hole diameters
Measure circular hole diameters against nominal dimensions and tolerances to check for oversize or undersize holes.
Read the result: compare the nominal value with the measured value, then check the deviation against the tolerance for that dimension.
- Circular hole diameters
- Dimensional deviations
VQC_NT Actual inspection plan
View full image
Hole positions and spacing
Check centre-to-centre and hole-to-edge distances to identify positional deviations that may affect assembly.
Read the result: compare the nominal value with the measured value, then check the deviation against the tolerance for that dimension.
- Centre-to-centre distance
- Hole-to-edge distance
VQC_NT Recorded inspection results
View full image
Angles and radii
The image shows nominal angle and radius annotations from the drawing, not measured results. Confirm the required checks with your drawing and a sample.
- Angle measurement
- Arc radius
04 / WHY VQC
Built for real
sheet metal parts.
VQC / CAD COMPARISON
Assess your actual parts
See the spacing results for a sample with raised features on both sides, tested at two positions.
Keep inspection evidence
Review nominal values, tolerances, measured values and deviations, then create an inspection report.
Raised or warped parts: suitability depends on height, visible contours and required tolerances. Confirm with a sample inspection.
See the sample results →SAMPLE INSPECTIONS
Consistent results across positions.
See how VQC and the comparison system measured the same sample at different positions.
01 / Telecom sheet metal part
Within tolerance at both positions.
Raised features on both sides · Uneven sheet
| Part position | VQC mm | Comparison system mm |
|---|---|---|
| Centre | 623.39Within tolerance | 623.634Within tolerance |
| Left | 623.44Within tolerance | 624.282Out of tolerance |
VQC: both positions within tolerance. Comparison system: one reading outside tolerance.
02 / Medical instrument sheet metal part
One hole. Three matching readings.
| Part position | VQC mm | Comparison system mm |
|---|---|---|
| Left | 2.88Within tolerance | 3.048Out of tolerance |
| Right | 2.88Within tolerance | 3.165Out of tolerance |
| Centre | 2.88Within tolerance | 2.930Within tolerance |
VQC: 2.88 mm at all three positions. Comparison system: two readings outside tolerance.
Historical sample tests from comparison material identified as 2016. Results and tolerance labels apply only to the dimensions and positions shown, not the whole part. Your parts can be assessed in a sample inspection.
Clear results for confident release.
Request a demoStable readings help your team make clearer inspection decisions.
Flat sheet metal · Illustrative examples05 / PARTS & APPLICATIONS
Built for flat parts.
Inspect profiles, hole positions and 2D dimensions on opaque flat parts.
Discuss your part ↗Common questions
Which parts can VQC inspect?
VQC checks profiles, hole positions and related dimensions on opaque flat parts. The workflow shown here does not inspect 3D surfaces, thickness or surface defects.
How do we assess inspection time and investment value?
Compare the full loading, scanning, review and reporting cycle using representative parts, alongside your inspection volume and current process.
What should we prepare for a part evaluation?
Bring a representative part, CAD / DXF drawing and key tolerances. Tell us which checks take the most effort.
LET’S MAKE QUALITY VISIBLE.
See VQC on your part.
Start with your part type and inspection challenge. With your drawing and key tolerances, we can discuss suitable checks and a sample demonstration.
Discuss your part ↗DTMT Hangzhou Co., Ltd.[email protected] ↗+86 138 5712 4185 ↗For a detailed assessment: part size · CAD / DXF · key tolerances