Keyence VR-3200 Executing a Basic 3D Scan

The magnification can be adjusted by selecting between low mag and high mag (detailed in step 4)

Low mag is capable of scanning up to 1 cm depth, allowing for 12x, 25x, 38x, and 50x magnification

High mag is capable of scanning up to 1 mm depth, allowing for 40x, 80x, 120x, and 160x magnification

The camera brightness can be adjusted depending on the color and luster of the sample (see step 2)

The focus can be adjusted manually or automatically, and should be done before any scans (see step 3)

To move the view around, either use the movement window or right click and drag on the viewing window

The movement window has arrows that can be clicked and held, a "step" tab that allow specific transverse movements, or a small sub-window that can be clicked on to move the stage.

Color settings can also be modified

Brightness can be edited with the leftmost settings under "Camera brightness"

The dropdown has "manual" and "automatic" options, which allow brightness adjustment via exposure time and average pixel brightness.

"manual" ranges from 0.1ms to 20ms, and "automatic" ranges from 0 to 255.

Image 2 shows an example of over-exposure, and image 3 shows an example of the correct exposure level.

Correctly choosing an exposure level can affect the accuracy of the following scans and images.

When a new sample is placed on the stage, the focus needs to be adjusted

"AF" stands for "Auto Focus", and when clicked will focus on the center of the screen

It can also be focused to a particular level by double clicking anywhere on the viewing image

Manual Focusing takes a little bit more time, but can work better on materials that are very small, have a large height range, or are shiny/translucent.

The focus level can be controlled with the mouse scroll wheel or the dial on the side of the Keyence with "Up <--> Down" markings (scroll wheel is recommended)

The instruction set on the right side does a good job of showing how to properly focus using the lights, but it boils down to changing the Z level until the lines meet in the middle.

Physical and Digital Zoom levels can be controlled under "change magnification"

Physical zoom options are simple "low" and "high" magnification

Low magnification has 12x, 25x, 38x, and 50x magnification options

High magnification has 40x, 80x, 120x, and 160x magnification options

Low and High magnification levels change the accuracy and potential height range of scans.

Low Mag: 10mm scan height, 1um repeatability, 5um accuracy

High Mag: 1mm scan height, 0.5um repeatability, 3um accuracy

Focus must be adjusted when changing physical magnification levels

In order to scan samples larger than the viewing field, stitching must be utilized

There multiple stitching configurations available, but this guide will cover "Auto" mode only, as it is far easier to use.

The "Area specification method" section has "simple" and "detailed" options.

"Simple" mode allows scanning of images

Click Measure when done setting the boundaries so the software runs the scan

The Viewer will automatically import the scan into the Analyzer software after the scan in complete

There are multiple ways to export the data of an individual scan (image 1)

A ".zon" file can be saved with raw measurement data to be analyzed later.

A ".csv" or ".xlsx" can export all images in the sheet as well as measurement data (not yet defined if the data is just imported). There are a few sub-options to change what data is captured in the output.

Selecting "Output 3D CAD" data will allow exporting of ".stl", ".step", or ".asc" files. There are a few sub-options to customize the exact output.

Individual images can be exported if just a pretty picture is desired as well.