{"id":159,"date":"2017-01-08T20:11:35","date_gmt":"2017-01-08T20:11:35","guid":{"rendered":"http:\/\/thoughtfulconcepts.com\/blog\/?p=159"},"modified":"2017-03-03T18:20:02","modified_gmt":"2017-03-03T18:20:02","slug":"y-axis-progress","status":"publish","type":"post","link":"https:\/\/www.diycncdesign.com\/blog\/2017\/01\/08\/y-axis-progress\/","title":{"rendered":"Y Axis Progress"},"content":{"rendered":"<p>Although I left enough space for the epoxy to form a meniscus at the edges, I decided I wanted to get the rails right up to the edges, per the original design. I used a shoulder plane while the epoxy was only partially hardened and it planed down beautifully to remove the meniscus along the outer edges. After the leveling epoxy was completely cured I bonded the aluminum rail mounts (with rails still installed) into place on the gantry, using an adhesive epoxy. I think I forgot to mention earlier during the Z Axis buildup, that all the aluminum bar stock was chemically etched prior to epoxying them to the plywood, in order to get the best bond. On one set of rails, I sanded the bonding surface with 120 grit prior to etching; another recommended method for better bonds. I\u2019ll see how each method holds up and perhaps do some more formal testing of different bonding methods in the future.<\/p>\n<p>To help align the rails, I placed identical length aluminum bar stock in between the rails at each end, where the ball screw supports will be mounted. Then I built part of the Y carriage and installed it on the rails, to hold them in alignment at the center.<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-114\" src=\"https:\/\/i0.wp.com\/thoughtfulconcepts.com\/blog\/wp-content\/uploads\/2017\/03\/20161104_065455-Medium-300x225.jpg?resize=300%2C225\" alt=\"Y carriage on rails\" width=\"300\" height=\"225\" srcset=\"https:\/\/i0.wp.com\/www.diycncdesign.com\/blog\/wp-content\/uploads\/2017\/03\/20161104_065455-Medium.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.diycncdesign.com\/blog\/wp-content\/uploads\/2017\/03\/20161104_065455-Medium.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.diycncdesign.com\/blog\/wp-content\/uploads\/2017\/03\/20161104_065455-Medium.jpg?w=1024&amp;ssl=1 1024w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>Once the epoxy cured I put a dial indicator on one set of guide bearings and measured the error all along the length of the opposite rail. I loosened one to three rail mount screws at a time and made fine adjustments to the rail until I had no more than +\/- 0.0005\u201d error throughout the full length.<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-113\" src=\"https:\/\/i0.wp.com\/thoughtfulconcepts.com\/blog\/wp-content\/uploads\/2017\/03\/20161104_082347-Medium-300x225.jpg?resize=300%2C225\" alt=\"dial indicator on linear bearings\" width=\"300\" height=\"225\" srcset=\"https:\/\/i0.wp.com\/www.diycncdesign.com\/blog\/wp-content\/uploads\/2017\/03\/20161104_082347-Medium.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.diycncdesign.com\/blog\/wp-content\/uploads\/2017\/03\/20161104_082347-Medium.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.diycncdesign.com\/blog\/wp-content\/uploads\/2017\/03\/20161104_082347-Medium.jpg?w=1024&amp;ssl=1 1024w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Although I left enough space for the epoxy to form a meniscus at the edges, I decided I wanted to get the rails right up to the edges, per the original design. I used a shoulder plane while the epoxy was only partially hardened and it planed down beautifully to remove the meniscus along the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[8],"tags":[10,14],"class_list":["post-159","post","type-post","status-publish","format-standard","hentry","category-wood-cnc-router-build","tag-diy-cnc-router","tag-y-axis-build"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p8t9Fx-2z","_links":{"self":[{"href":"https:\/\/www.diycncdesign.com\/blog\/wp-json\/wp\/v2\/posts\/159","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.diycncdesign.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.diycncdesign.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.diycncdesign.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.diycncdesign.com\/blog\/wp-json\/wp\/v2\/comments?post=159"}],"version-history":[{"count":1,"href":"https:\/\/www.diycncdesign.com\/blog\/wp-json\/wp\/v2\/posts\/159\/revisions"}],"predecessor-version":[{"id":160,"href":"https:\/\/www.diycncdesign.com\/blog\/wp-json\/wp\/v2\/posts\/159\/revisions\/160"}],"wp:attachment":[{"href":"https:\/\/www.diycncdesign.com\/blog\/wp-json\/wp\/v2\/media?parent=159"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.diycncdesign.com\/blog\/wp-json\/wp\/v2\/categories?post=159"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.diycncdesign.com\/blog\/wp-json\/wp\/v2\/tags?post=159"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}