Tool measurement on the shop floor with Alicona EdgeMaster

Tool measurement on the shop floor


The EdgeMaster is an optical 3D measurement device for automatic tool measurement on the shop floor. Cutting edges of inserts, drills, millers and other round tools are measured regardless of type, size, material or surface finish. Users measure radii >2μm as well as rake, wedge and clearance angle of tools. Different types, including both waterfall and trumpet, are precisely measured. Traceable and repeatable results are delivered in high vertical resolution even at vibrations, variations in temperature and ambient light. In addition to chipping measurement, the high vertical resolution also enables traceable roughness measurement on the rake face.

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Technical Specifications

Measurement principle non-contact, optical, three-dimensional, based on Focus-Variation
Positioning volume (X x Y xZ) RL objectives: man.: 25 mm x 25 mm x 155 mm (Z: 25 mm mot., 130 mm man.) = 96875 mm3
SXRL/AXRL objectives: man.: 25 mm x 25 mm x 120 mm (Z: 25 mm mot., 95 mm man.) = 75000mm³
Objective magnification   10x 20x 50x 2xSX 5xAX 10xAX 20xAX 50xSX
Working distance mm 17.5 16 10.1 34 34 33.5 20 13
Lateral measurement range (X,Y)
(X x Y)
Vertical resolution nm 100 50 20 3500 460 130 70 45
Height step accuracy (1 mm) % 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
Min. measurable roughness (Ra) µm 0.3 0.15 0.08 n.a. n.a. 0.45 0.25 0.15
Min. measurable roughness (Sa) µm 0.15 0.075 0.05 n.a. n.a. 0.25 0.1 0.08
Min. measurable radius µm 5 3 2 20 10 5 3 2

For more information download the product flyer or send us a request.

High measuring point density

Up to 500 million measurement points ensure a meticulously detailed measurement with tolerances in the μm and sub-μm range along with large working distance. The high measurement point density of Focus-Variation enables operators to gain a consistently high lateral and vertical resolution across high measurement volumes.

Measurement of steep flanks

Light coming from different directions is used to positively influence a measurement. The measurement of the maximum flank angle is not restricted by the numerical aperture of an objective. Depending on the surface users measure surfaces with slope angles up to 87°.

Varying surface reflections

SmartFlash allows high resolution measurements of materials with varying surface characteristics or reflectivity. Modulated light provides optimal illumination throughout the whole measurement area. Users measure glossy, ground, rough, reflective and diffuse components.

Focus-Variation Technology

Alicona measurement systems are based on the technology of Focus-Variation and combine the functionalities of a surface roughness measurement device and a form measurement system. Each Alicona measurement instrument is a surface measurement device, surface roughness measurement system, 3D measurement system for geometrical tolerancing and micro coordinate measurement system. The Focus-Variation technology combines the small depth of focus of an optical system with vertical scanning to provide topographical and color information from the variation of focus. The main component of the system is a precision optics containing various lens systems that can be equipped with different objectives, allowing measurements with different resolution.