{"id":2494,"date":"2026-10-27T02:30:58","date_gmt":"2026-10-26T23:30:58","guid":{"rendered":"https:\/\/temak.com.tr\/en\/cnc-edge-finders-workpiece-zeroing\/"},"modified":"2026-10-27T02:30:58","modified_gmt":"2026-10-26T23:30:58","slug":"cnc-edge-finders-workpiece-zeroing","status":"publish","type":"post","link":"https:\/\/temak.com.tr\/en\/cnc-edge-finders-workpiece-zeroing\/","title":{"rendered":"Workpiece Zeroing on CNC Machining Centres: Edge Finders and Their Types"},"content":{"rendered":"<p>In CNC and machining operations, accurately determining the position of the workpiece on the machine is the most fundamental step for precision machining. <strong>Workpiece zeroing probes (edge finders)<\/strong>, used for axis zeroing, allow workpiece reference points on the X and Y axes to be defined conveniently and with high accuracy.<\/p>\n<p>Watch Temak Teknik\u2019s informative video below covering probe types and application steps:<\/p>\n<p><iframe loading=\"lazy\" title=\"Problar: Kullan\u0131m\u0131 ve \u00c7e\u015fitleri\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/4YnmqYaBUrU?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<h2>Types and Features of Edge Finders<\/h2>\n<p>Different probe solutions are used depending on shop-floor needs and machine infrastructure:<\/p>\n<h2>1. Mechanical Edge Finders<\/h2>\n<p>Mechanical edge finders consist of a two-stage cylindrical body combined with a spring mechanism. They are divided into three groups according to their material:<\/p>\n<ul>\n<li><strong>Steel Edge Finders:<\/strong> Offer an economical solution. However, they may become magnetised over time due to friction.<\/li>\n<li><strong>Stainless Steel Edge Finders:<\/strong> Eliminate the risk of magnetisation, providing more stable measurement.<\/li>\n<li><strong>Ceramic Edge Finders:<\/strong> Extremely high wear resistance. Their shock-resistant, non-magnetic design ensures a long service life.<\/li>\n<\/ul>\n<h2>2. Light and Sound Edge Finders<\/h2>\n<p>On conductive workpieces, these systems complete an electrical circuit on contact and give both a visual (LED) and an audible (buzzer) signal:<\/p>\n<ul>\n<li><strong>No Spindle Rotation Required:<\/strong> Measurement is made by direct contact without rotating the spindle (while stationary).<\/li>\n<li><strong>High Precision:<\/strong> Provides accuracy at the 0.005 mm (5 micron) level.<\/li>\n<li><em>Note:<\/em> For light\/sound edge finders to work, the workpiece and machine table must be conductive (mechanical edge finders should be preferred for plastic or insulated materials).<\/li>\n<\/ul>\n<h2>How to Zero Correctly with a Mechanical Edge Finder<\/h2>\n<p>To zero a part to 0.01 mm (1%) accuracy with a mechanical edge finder, follow these steps:<\/p>\n<ol>\n<li><strong>Speed Setting:<\/strong> Mechanical edge finders are used with the spindle rotating. The recommended speed range is <strong>400 &#8211; 600 rpm<\/strong> (ideally 500 rpm). Higher speeds can cause the spring mechanism to fly apart and damage the equipment.<\/li>\n<li><strong>Gradual Approach:<\/strong> Approach the workpiece using the handwheel. At first contact, the lower tip of the probe rotates eccentrically (wobbling).<\/li>\n<li><strong>Kick-Off Point (Reference Moment):<\/strong> As contact continues, the axial wobble disappears and, at the moment it is exactly on axis, the lower tip makes a sideways &#8220;kick-off&#8221; movement. Stop the axis movement as soon as this kick is observed.<\/li>\n<li><strong>Defining the Coordinate:<\/strong> Taking the position at the moment of kick-off as reference, the radius of the probe tip used (e.g. 5 mm for a \u00d810 mm tip) is added to or subtracted from the axis value.<\/li>\n<\/ol>\n<h2>Critical Points to Observe in Use<\/h2>\n<ul>\n<li><strong>Do Not Use on the Z Axis:<\/strong> Edge finders are designed only for horizontal contact on the X and Y axes. Applying vertical pressure on the Z axis will break the probe and damage the machine.<\/li>\n<li><strong>Observe the Speed Limit:<\/strong> The speed limits specified by the manufacturer for mechanical edge finders must not be exceeded.<\/li>\n<li><strong>Magnetisation Check:<\/strong> To prevent measurement errors, it is recommended to demagnetise steel edge finders periodically or to choose ceramic\/stainless models.<\/li>\n<\/ul>\n<p>For edge finder types and technical details that provide fast and precise zeroing of your workpieces, visit our website <a href=\"https:\/\/temak.com.tr\/\" target=\"_blank\" rel=\"noopener\">temak.com.tr<\/a> and get support from our expert team.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mechanical and electronic edge finders for CNC workpiece zeroing: types, recommended speeds, step-by-step method and key precautions.<\/p>\n","protected":false},"author":4,"featured_media":2457,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[76],"tags":[],"class_list":["post-2494","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/temak.com.tr\/en\/wp-json\/wp\/v2\/posts\/2494","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/temak.com.tr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/temak.com.tr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/temak.com.tr\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/temak.com.tr\/en\/wp-json\/wp\/v2\/comments?post=2494"}],"version-history":[{"count":0,"href":"https:\/\/temak.com.tr\/en\/wp-json\/wp\/v2\/posts\/2494\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/temak.com.tr\/en\/wp-json\/wp\/v2\/media\/2457"}],"wp:attachment":[{"href":"https:\/\/temak.com.tr\/en\/wp-json\/wp\/v2\/media?parent=2494"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/temak.com.tr\/en\/wp-json\/wp\/v2\/categories?post=2494"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/temak.com.tr\/en\/wp-json\/wp\/v2\/tags?post=2494"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}