{"id":7265,"date":"2025-10-04T10:08:55","date_gmt":"2025-10-04T09:08:55","guid":{"rendered":"http:\/\/www.railway-models-and-art.co.uk\/blog\/?p=7265"},"modified":"2025-10-04T10:08:55","modified_gmt":"2025-10-04T09:08:55","slug":"my-journey-into-model-gear-cutting-continued","status":"publish","type":"post","link":"http:\/\/www.railway-models-and-art.co.uk\/blog\/?p=7265","title":{"rendered":"My Journey into Model Gear Cutting continued"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">I have been asked if I will do a &#8216;gear cutting 101&#8217; for those with little understanding of gearsand gear cutting (I count myself amongst them&#8230; ) So I will endeavour to share what I have determined so far.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gear sizes\/measurements come in two flavours (as you might expect) Imperial and Metric. The descriptions for these are:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Involute DP Gear Cutters ( DP standing for Diametral Pitch inch size) These come in two pressure angles 14.5 degrees and 20 degrees<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Metric Module (MOD) have a declared pressure angle of 20 degrees.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Each Involute DP or Module set is made up of 8 cutters which perversely, the number for each type is reversed from each other<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/10\/Gear-types.png\"><img loading=\"lazy\" decoding=\"async\" width=\"690\" height=\"258\" src=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/10\/Gear-types.png\" alt=\"\" class=\"wp-image-7266\" srcset=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/10\/Gear-types.png 690w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/10\/Gear-types-300x112.png 300w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/10\/Gear-types-500x187.png 500w\" sizes=\"auto, (max-width: 690px) 100vw, 690px\" \/><\/a><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>I have been asked if I will do a &#8216;gear cutting 101&#8217; for those with little understanding of gearsand gear cutting (I count myself amongst them&#8230; ) So I will endeavour to share what I have determined so far. Gear &hellip; <a href=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/?p=7265\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[81],"tags":[],"class_list":["post-7265","post","type-post","status-publish","format-standard","hentry","category-gear-cutting"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/7265","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7265"}],"version-history":[{"count":1,"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/7265\/revisions"}],"predecessor-version":[{"id":7267,"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/7265\/revisions\/7267"}],"wp:attachment":[{"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7265"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7265"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7265"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}