{"id":21,"date":"2024-12-15T02:23:33","date_gmt":"2024-12-15T01:23:33","guid":{"rendered":"https:\/\/gtwr.de\/blog\/?p=21"},"modified":"2024-12-21T17:47:07","modified_gmt":"2024-12-21T16:47:07","slug":"a-dti-holder-for-the-cnc","status":"publish","type":"post","link":"https:\/\/gtwr.de\/blog\/2024\/12\/15\/a-dti-holder-for-the-cnc\/","title":{"rendered":"Tools for locating features on milling machines"},"content":{"rendered":"\n<p>Centering and locating features on either a CNC or manual milling machine is a very important step. The industry provides us with a wonderful selection of tools for this purpose, edge finders, mechanical 3d probes all the way up to electronic probes that talk to the CNC controller.<\/p>\n\n\n\n<p>There are tools and techniques beyond of the here shown, like centering microscopes that let you pick features visually, the very oldschool wiggler or even a simple dowel pin in a collet.<\/p>\n\n\n\n<p>But the ones here shown are the more common that I have to say something about.<\/p>\n\n\n\n<p class=\"is-style-text-subtitle is-style-text-subtitle--1\">Edge Finder<\/p>\n\n\n\n<p>The simple edge finder is a tool that I like very much \u2013 It is very affordable and reliable yet delivering a high degree of precision when picking up workpiece edges.<\/p>\n\n\n\n<p>The design of the tool does not necessitate perfect runout, the work just as well, when you put them into a drill chuck.<\/p>\n\n\n\n<p class=\"is-style-text-subtitle is-style-text-subtitle--2\">Mechanical 3d Probe<\/p>\n\n\n\n<p>The least favorite Solution for me is the mechanical 3d probe \u2013 They have a surprising high actuation force that is not equal in all directions, they are highly depending on their runout being set correct, they need a dedicated toolholder (That\u2019s more a nuisance on a manual mill than on a cnc) and are overall not very confidence instilling to me.<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d8d2471da9f&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d8d2471da9f\" class=\"wp-block-image size-medium is-resized wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"231\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_3782-300x231.jpg\" alt=\"\" class=\"wp-image-34\" style=\"width:300px;height:auto\" srcset=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_3782-300x231.jpg 300w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_3782-768x592.jpg 768w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_3782.jpg 1024w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<p>These types of probes also require a fair amount of clearance between the spindle and the work.<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d8d2471de3a&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d8d2471de3a\" class=\"wp-block-image size-medium wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"239\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_5194-3-300x239.jpg\" alt=\"\" class=\"wp-image-53\" srcset=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_5194-3-300x239.jpg 300w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_5194-3-768x613.jpg 768w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_5194-3.jpg 1024w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<p class=\"is-style-text-subtitle is-style-text-subtitle--3\">Dial test indicator<\/p>\n\n\n\n<p>My favorite solution is a dial test indicator that is in some way mounted to the spindle of the machine and has some adjustability built into it.<\/p>\n\n\n\n<p>This can either be a flexible arm \u2013 like what is used on a magnetic indicator stand \u2013 Held in the spindle or clamped to the spindle\/toolholder.<\/p>\n\n\n\n<p>This is an example of a flex arm mount that is clamped to the ER25 collet nut of a high-speed spindle.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-4 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d8d2471e67b&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d8d2471e67b\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"897\" height=\"1024\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"35\" src=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_2432-897x1024.jpg\" alt=\"\" class=\"wp-image-35\" srcset=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_2432-897x1024.jpg 897w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_2432-263x300.jpg 263w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_2432-768x877.jpg 768w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_2432.jpg 1024w\" sizes=\"auto, (max-width: 897px) 100vw, 897px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d8d2471e949&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d8d2471e949\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"936\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"36\" src=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_2433.jpg\" alt=\"\" class=\"wp-image-36\" srcset=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_2433.jpg 1024w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_2433-300x274.jpg 300w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_2433-768x702.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/figure>\n\n\n\n<p>Holding them in a drill\/collet chuck is also an option:<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d8d2471eda8&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d8d2471eda8\" class=\"wp-block-image size-medium wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"248\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_6920-300x248.jpg\" alt=\"\" class=\"wp-image-41\" srcset=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_6920-300x248.jpg 300w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_6920-1024x845.jpg 1024w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_6920-768x634.jpg 768w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_6920.jpg 1280w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<p>These holders give a great range of freedom, but that\u2019s also a drawback, since its quite time consuming to align the probe tip in a meaningful way.<\/p>\n\n\n\n<p>Personally, I prefer a holder that has less freedom of motion, like the very popular halfmoon shaped holders that can also be held in a toolholder or clamped to the spindle\/toolholder with an additional clamp.<\/p>\n\n\n\n<p>These can either be purchased commercially or make for a neat little shop project. The one shown here was built in-house, a set of drawings for the half-moon holder is available in the files section.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-5 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d8d2471f101&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d8d2471f101\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"975\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"40\" src=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/pro_spindelklemme_17.jpg\" alt=\"\" class=\"wp-image-40\" srcset=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/pro_spindelklemme_17.jpg 1024w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/pro_spindelklemme_17-300x286.jpg 300w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/pro_spindelklemme_17-768x731.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d8d2471f36c&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d8d2471f36c\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"633\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"39\" src=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/pro_spindelklemme_16.jpg\" alt=\"\" class=\"wp-image-39\" srcset=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/pro_spindelklemme_16.jpg 1024w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/pro_spindelklemme_16-300x185.jpg 300w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/pro_spindelklemme_16-768x475.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/figure>\n\n\n\n<p>Held on a milling machine spindle vs. held directly in a collet:<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-6 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d8d2471f6be&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d8d2471f6be\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"916\" height=\"1024\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"56\" src=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/pro_spindelklemme_19.jpg\" alt=\"\" class=\"wp-image-56\" srcset=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/pro_spindelklemme_19.jpg 916w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/pro_spindelklemme_19-268x300.jpg 268w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/pro_spindelklemme_19-768x859.jpg 768w\" sizes=\"auto, (max-width: 916px) 100vw, 916px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d8d2471f91b&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d8d2471f91b\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"967\" height=\"1024\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"55\" src=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_4752-967x1024.jpg\" alt=\"\" class=\"wp-image-55\" srcset=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_4752-967x1024.jpg 967w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_4752-283x300.jpg 283w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_4752-768x813.jpg 768w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/IMG_4752.jpg 1024w\" sizes=\"auto, (max-width: 967px) 100vw, 967px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/figure>\n\n\n\n<p>For certain types of machines, like CNC routers height clearance is a real concern \u2013 None of the commercial options are very satisfying in that regard. That\u2019s why I came up with the following design that\u2019s extremely low profile and has the necessary adjustability to line the stylus up with the center of rotation built into it.<\/p>\n\n\n\n<p>The set of drawings for this holder can be found in the Files section of this blog.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-7 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d8d2471fcd9&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d8d2471fcd9\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"933\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"54\" src=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/P1115615-1024x933.jpg\" alt=\"\" class=\"wp-image-54\" srcset=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/P1115615-1024x933.jpg 1024w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/P1115615-300x273.jpg 300w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/P1115615-768x700.jpg 768w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/P1115615.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69d8d2471ff0d&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69d8d2471ff0d\" class=\"wp-block-image size-large wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"791\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" data-id=\"48\" src=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/PXL_20241123_195144759-1024x791.jpg\" alt=\"\" class=\"wp-image-48\" srcset=\"https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/PXL_20241123_195144759-1024x791.jpg 1024w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/PXL_20241123_195144759-300x232.jpg 300w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/PXL_20241123_195144759-768x593.jpg 768w, https:\/\/gtwr.de\/blog\/wp-content\/uploads\/2024\/12\/PXL_20241123_195144759.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/figure>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Centering and locating features on either a CNC or manual milling machine is a very important step. The industry provides us with a wonderful selection of tools for this purpose, edge finders, mechanical 3d probes all the way up to electronic probes that talk to the CNC controller. There are tools and techniques beyond of [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[10,9,8],"class_list":["post-21","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-3d-probe","tag-dial-test-indicator","tag-edge-finder"],"_links":{"self":[{"href":"https:\/\/gtwr.de\/blog\/wp-json\/wp\/v2\/posts\/21","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gtwr.de\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gtwr.de\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gtwr.de\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gtwr.de\/blog\/wp-json\/wp\/v2\/comments?post=21"}],"version-history":[{"count":9,"href":"https:\/\/gtwr.de\/blog\/wp-json\/wp\/v2\/posts\/21\/revisions"}],"predecessor-version":[{"id":61,"href":"https:\/\/gtwr.de\/blog\/wp-json\/wp\/v2\/posts\/21\/revisions\/61"}],"wp:attachment":[{"href":"https:\/\/gtwr.de\/blog\/wp-json\/wp\/v2\/media?parent=21"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gtwr.de\/blog\/wp-json\/wp\/v2\/categories?post=21"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gtwr.de\/blog\/wp-json\/wp\/v2\/tags?post=21"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}