Consistent readings
One sample hole: 2.88 mm at all three tested positions.
VISUAL QUALITY CONTROL
Optical inspection
for sheet metal.
Scan flat parts, compare them with CAD and create inspection reports.
Precision inspection, designed for the shop floor
VQC / OPTICAL INSPECTION
DTMT HANGZHOU / Precision engineering. German origins.Scroll to explore ↓
01 / WHY VQC
Built for real
sheet metal parts.
VQC / CAD COMPARISON
Specified accuracy
MPEE ±(30 + L/50) µm, with L in mm. Confirm the specification for your configuration.
Flexible positioning
Position the part within the measuring area and align its contour with CAD.
Raised features on both sides
The sample has bulges and raised rings on its two sides.
Uneven sheet parts
The same uneven sample gave in-tolerance spacing at both tested positions.
One inspection workflow
Scan, compare and report — with dimensions and tolerances in one place.
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.
Clear results for confident release.
Request a demoStable readings help your team make clearer inspection decisions.
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
Flat sheet metal · Illustrative examples03 / PARTS & APPLICATIONS
Built for flat parts.
Inspect profiles, hole positions and 2D dimensions on opaque flat parts.
Discuss your part ↗04 / 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.
- 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.
- 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.
- Centre-to-centre distance
- Hole-to-edge distance
VQC_NT Recorded inspection results
View full image
Angles and radii
Review angle and radius annotations with measured results to check corners, cutouts and other local geometry.
- Angle measurement
- Arc radius
Explore the machine in 3DSee how parts are positioned and scanned.
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
A digital quality workflowCAD → REPORTFrom nominal geometry to traceable results
VQC / 3D machine view3D EXPLORER
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
3D illustrates the capture of 2D contours. Machine configuration depends on the agreed specification.
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.
Share your drawing and key tolerances. We’ll show you how VQC fits your inspection needs.
Request a demo ↗DTMT Hangzhou Co., Ltd.qin.wang@dtmthz.cn ↗+86 138 5712 4185 ↗Bring: part size · CAD / DXF · key tolerances