{"id":314,"date":"2022-04-21T18:58:29","date_gmt":"2022-04-21T17:58:29","guid":{"rendered":"http:\/\/knowhere.myqnapcloud.com\/WordPress\/?p=314"},"modified":"2023-11-15T23:40:43","modified_gmt":"2023-11-15T23:40:43","slug":"bullseye-diy-focuser-upgrade","status":"publish","type":"post","link":"https:\/\/ironmountain.halley-arctic.ts.net\/WordPress\/2022\/04\/21\/bullseye-diy-focuser-upgrade\/","title":{"rendered":"BullsEye DIY Focuser Upgrade"},"content":{"rendered":"\n<p>I decided to improve the design of the NEMA17 version of the BullsEye Focuser due to some skipped steps I was experiencing sometimes with the old direct drive design. The new design uses a GT2 timing belt and pulleys to increase the torque of the system. On top of the belt and pulleys the only other thing I had to change was the bracket that mounts the focuser on the scope.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"938\" src=\"..\/..\/..\/WordPress\/wp-content\/uploads\/2022\/04\/IMG_20220421_170754.jpg\" alt=\"\" class=\"wp-image-316\" srcset=\"https:\/\/ironmountain.halley-arctic.ts.net\/WordPress\/wp-content\/uploads\/2022\/04\/IMG_20220421_170754.jpg 800w, https:\/\/ironmountain.halley-arctic.ts.net\/WordPress\/wp-content\/uploads\/2022\/04\/IMG_20220421_170754-256x300.jpg 256w, https:\/\/ironmountain.halley-arctic.ts.net\/WordPress\/wp-content\/uploads\/2022\/04\/IMG_20220421_170754-768x900.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"1012\" src=\"..\/..\/..\/WordPress\/wp-content\/uploads\/2022\/04\/IMG_20220421_170634.jpg\" alt=\"\" class=\"wp-image-317\" srcset=\"https:\/\/ironmountain.halley-arctic.ts.net\/WordPress\/wp-content\/uploads\/2022\/04\/IMG_20220421_170634.jpg 800w, https:\/\/ironmountain.halley-arctic.ts.net\/WordPress\/wp-content\/uploads\/2022\/04\/IMG_20220421_170634-237x300.jpg 237w, https:\/\/ironmountain.halley-arctic.ts.net\/WordPress\/wp-content\/uploads\/2022\/04\/IMG_20220421_170634-768x972.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>The pinion is a 16T 5mm bore GT2 and the pulley is a 60T 6mm bore GT2. The belt is 200mm (100T) GT2.<\/p>\n\n\n\n<p>Here&#8217;s a video demonstrating the focuser in action:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"BullsEye DIY Focuser - Timing Belt Mod\" width=\"880\" height=\"495\" src=\"https:\/\/www.youtube.com\/embed\/RBMkzddWk_c?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Update: Got lucky and had some clear skies tonight as well so I was able to give this a proper test. All seems to be working very well \ud83d\ude42<\/p>\n\n\n\n<p>Update: The files for the <a href=\"https:\/\/gitlab.com\/kbrown\/bullseye-focuser\/-\/blob\/main\/mechanical\/BullsEyeFocuser_NEMA17_L-BracketB.stl\">new bracket<\/a> have been added to the git repository.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I decided to improve the design of the NEMA17 version of the BullsEye Focuser due to some skipped steps I<\/p>\n<p><a href=\"https:\/\/ironmountain.halley-arctic.ts.net\/WordPress\/2022\/04\/21\/bullseye-diy-focuser-upgrade\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\">BullsEye DIY Focuser Upgrade<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":316,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"no","ngg_post_thumbnail":0,"footnotes":""},"categories":[7],"tags":[14,10,11,9,6,12],"class_list":["post-314","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-diy-astonomy","tag-3d-printed","tag-arduino","tag-bullseye","tag-diy","tag-focuser","tag-indi"],"modified_by":"nightowl","_links":{"self":[{"href":"https:\/\/ironmountain.halley-arctic.ts.net\/WordPress\/wp-json\/wp\/v2\/posts\/314","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ironmountain.halley-arctic.ts.net\/WordPress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ironmountain.halley-arctic.ts.net\/WordPress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ironmountain.halley-arctic.ts.net\/WordPress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ironmountain.halley-arctic.ts.net\/WordPress\/wp-json\/wp\/v2\/comments?post=314"}],"version-history":[{"count":6,"href":"https:\/\/ironmountain.halley-arctic.ts.net\/WordPress\/wp-json\/wp\/v2\/posts\/314\/revisions"}],"predecessor-version":[{"id":537,"href":"https:\/\/ironmountain.halley-arctic.ts.net\/WordPress\/wp-json\/wp\/v2\/posts\/314\/revisions\/537"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ironmountain.halley-arctic.ts.net\/WordPress\/wp-json\/wp\/v2\/media\/316"}],"wp:attachment":[{"href":"https:\/\/ironmountain.halley-arctic.ts.net\/WordPress\/wp-json\/wp\/v2\/media?parent=314"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ironmountain.halley-arctic.ts.net\/WordPress\/wp-json\/wp\/v2\/categories?post=314"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ironmountain.halley-arctic.ts.net\/WordPress\/wp-json\/wp\/v2\/tags?post=314"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}