Straight stylus, M4 thread, ∅4 ruby ball, ceramic stem, 50 length, EWL 36mm
The simplest and most frequently used type of stylus, suitable for the majority of probing applications.
Straight styli are designed to inspect simple features where direct, unobstructed contact with a measured surface is possible. A ceramic stem is lightweight yet very stiff and offers built-in crash protection. Ruby is regarded as the industry standard for stylus tips. It is one of the hardest materials available and suitable for most applications. Due to adhesive pickup, ruby tips are not recommended for scanning aluminium parts.
For most measurement occasions, ruby is one of the toughest materials with the industry standard and best characteristics. Artificial rubies were made in 2000 ° Alumina crystal (corundum) with purity of 99% was sintered by Verneuil process at room temperature.
The rigidity of ceramic stylus rod is better than that of steel stylus rod, but its weight is much lighter than that of tungsten carbide. The probe with ceramic rod will be broken when it collides, so the probe has extra protection against collision.
• Always use styli that are as short and stable as possible
• With long styli components, ensure that they have the required stability
• Check that the styli you use have no defects, particularly on the thread and the seating area This will ensure that the mount is very secure
• Check that the probe component is firmly attached
• Replace worn styli
• Are your components thermally stable? Bear in mind the ambient conditions
• Avoid too many or different thread connections
• Use the lowest possible number of separate components
• Use the largest possible balls
• Large ball styli act as mechanical filters on the surface of the workpiece The fine structures on the surface of the workpiece are scarcely recorded with large balls, which prevents random measurement variations
• Styli should always be aligned at right-angles, or as close to a right angle as possible, to the planes being measured For angled measuring planes and angled bores, angled cubes and knuckles are available to ensure that styli are accurately aligned
• Ensure that the measuring force and dynamics suit the stylus components With small ball styli with a slim stem, you should reduce these values when necessary.
*How to Choose Stylus
Try to choose the short stylus, The greater the bending or deformation of the stylus, the lower the accuracy. It is your best choice to use the shortest possible probe.
Try to minimize the adaptor, Each additional connection between a stylus and a stylus rod increases a potential bending and deformation point. Minimize the number of stylus components in your application.
The diameter of the measuring ball should be as large as possible, First is to increase the distance between the measuring ball and the stylus rod, so as to reduce the false trigger caused by the collision with the stylus rod; Secondly, the larger the diameter of the measuring ball is, the smaller the influence of the surface finish of the workpiece is.