{"id":229,"date":"2021-11-05T16:04:12","date_gmt":"2021-11-05T07:04:12","guid":{"rendered":"https:\/\/stellartech.science\/?page_id=229"},"modified":"2024-12-09T17:32:51","modified_gmt":"2024-12-09T08:32:51","slug":"qeq","status":"publish","type":"page","link":"https:\/\/stellartech.science\/en\/qeq\/","title":{"rendered":"qEQ"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">EQ Direct with Active Backlash Reducer<\/h1>\n\n\n\n<p class=\"has-vivid-red-color has-text-color\"><a href=\"https:\/\/qeq.stellartech.science\/update\/qequpdate.html\">Firmware Update<\/a> available. <br>Old firmware version does not work with the latest SynScan application and the latest AZGTi firmware.<\/p>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color\"><\/p>\n\n\n\n<p class=\"has-text-align-right\"><strong><a href=\"https:\/\/stellartech.science\/qeq\/\">\u65e5\u672c\u8a9e(In Japanese)<\/a><\/strong><br><strong><a href=\"https:\/\/www.ebay.com\/itm\/226389520975\">on Sale (eBay)<\/a><\/strong><br><a href=\"https:\/\/qeq.stellartech.science\/qEQ_manual_en_v3.pdf\"><strong>qEQ Operation Manual<\/strong><\/a><br><strong><a href=\"https:\/\/qEQ.stellartech.science\/setting.html?v=6\">qEQ Setting Tool<\/a><\/strong><br><a href=\"https:\/\/qeq.stellartech.science\/qEQ_How_to_Setup_eng.pdf\"><strong>qEQ Setting Tool Manual<\/strong><\/a><\/p>\n\n\n<div class=\"wp-block-image is-resized is-style-rounded\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"542\" src=\"https:\/\/stellartech.science\/wp-content\/uploads\/2021\/11\/qEq-1024x542.png\" alt=\"\" class=\"wp-image-244\" srcset=\"https:\/\/stellartech.science\/wp-content\/uploads\/2021\/11\/qEq-1024x542.png 1024w, https:\/\/stellartech.science\/wp-content\/uploads\/2021\/11\/qEq-300x159.png 300w, https:\/\/stellartech.science\/wp-content\/uploads\/2021\/11\/qEq-768x407.png 768w, https:\/\/stellartech.science\/wp-content\/uploads\/2021\/11\/qEq-1536x814.png 1536w, https:\/\/stellartech.science\/wp-content\/uploads\/2021\/11\/qEq-2048x1085.png 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p>qEQ is a EQDIREC-USB-C cable adaptor for SkyWatcher mount, especially for AZ GTi\/GTe.<br>You just need to connect PC and your mount with qEQ. Then microcomputer in qEQ will reduce backlash and your mount  should improve its response.<\/p>\n\n\n<div class=\"wp-block-image is-resized\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"624\" height=\"347\" src=\"https:\/\/stellartech.science\/wp-content\/uploads\/2021\/11\/image-1.png\" alt=\"\" class=\"wp-image-270\" srcset=\"https:\/\/stellartech.science\/wp-content\/uploads\/2021\/11\/image-1.png 624w, https:\/\/stellartech.science\/wp-content\/uploads\/2021\/11\/image-1-300x167.png 300w\" sizes=\"auto, (max-width: 624px) 100vw, 624px\" \/><figcaption class=\"wp-element-caption\">When DEC axis move to opposite direction (marked as <span class=\"has-inline-color has-vivid-red-color\"><strong>\u3007<\/strong><\/span> ), <br>response should improve<\/figcaption><\/figure>\n<\/div>\n\n\n<p>qEQ is developped mainly for SkyWatcher AZ GTi and AZ GTe mounts.<br>qEQ use SeeeduinoXiao(R) as a microcomputer. <\/p>\n\n\n\n<p>(<em style=\"color:red\"><strong>New*<\/strong><\/em>) Now Setting tool have &#8220;Advanced Mode&#8221; and you can configure backlash for <strong>ClockWise<\/strong> and <strong>CounterClockWise<\/strong> independently.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"766\" src=\"https:\/\/stellartech.science\/wp-content\/uploads\/2022\/04\/qEQ_Setting_New-1024x766.png\" alt=\"\" class=\"wp-image-299\" srcset=\"https:\/\/stellartech.science\/wp-content\/uploads\/2022\/04\/qEQ_Setting_New-1024x766.png 1024w, https:\/\/stellartech.science\/wp-content\/uploads\/2022\/04\/qEQ_Setting_New-300x224.png 300w, https:\/\/stellartech.science\/wp-content\/uploads\/2022\/04\/qEQ_Setting_New-768x574.png 768w, https:\/\/stellartech.science\/wp-content\/uploads\/2022\/04\/qEQ_Setting_New.png 1162w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Response Comparison : EQDIRECT vs qEQ<\/h2>\n\n\n\n<p>Movie of command and response of AZGTi DEC(ALT) axis. Moving x1.0 (vs sidereal speed) EQDIRECT cable took more than 6 seconds until start responding, but qEQ start respond within 1 second.<\/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=\"Response comparison: normal EQDIRECT vs qEQ\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/fbYlOT65J0Q?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>\n<\/div><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How it works?(Concept)<\/h2>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"300\" data-id=\"174\" src=\"https:\/\/stellartech.science\/wp-content\/uploads\/2021\/09\/normal.gif\" alt=\"\" class=\"wp-image-174\"\/><figcaption class=\"wp-element-caption\">Normal<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"300\" data-id=\"173\" src=\"https:\/\/stellartech.science\/wp-content\/uploads\/2021\/09\/blc2-1.gif\" alt=\"\" class=\"wp-image-173\"\/><figcaption class=\"wp-element-caption\"><strong>qEQ<\/strong><\/figcaption><\/figure>\n<\/figure>\n\n\n\n<p>When moving to opposite direction in slow speed, there is a delay time because of backlash.  AZGTi has relatively large backlash, around 60 arc-second, and it need more than 5 seconds delay when moving at sidereal speed.<br><br>qEQ moves motor very quickly for a very short time, and consume backlash before axis start moving. As a result, axis can respond quickly as if backlash is very small.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to adjust qEQ for your mount<\/h2>\n\n\n\n<p>Backlash was set to 55 arc-seconds as default. AZGTi has backlash around 60 arc-seconds according to our research. <strong>To avoid OVER REACTION, set value a little smaller than real backlash, <\/strong>because it may differ by weight around axis and position.<\/p>\n\n\n\n<p><a href=\"https:\/\/qeq.stellartech.science\/setting.html?v=6\">qEQ Setting tool<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/qeq.stellartech.science\/qEQ_How_to_Setup_eng.pdf\">Documentation of Setting Tool<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>EQ Direct with Active Backlash Reducer Firmware Update available. Old firmware version does not work with the latest SynScan application and the latest AZGTi firmware. \u65e5\u672c\u8a9e(In Japanese)on Sale (eBay)qEQ Operation ManualqEQ Setting ToolqEQ Setting Tool Manual qEQ is a EQDIREC-USB-C cable adaptor for SkyWatcher mount, especially for AZ GTi\/GTe.You just need to connect PC and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_locale":"en_US","_original_post":"https:\/\/stellartech.science\/?page_id=218","footnotes":""},"class_list":["post-229","page","type-page","status-publish","hentry","en-US"],"acf":[],"_links":{"self":[{"href":"https:\/\/stellartech.science\/wp-json\/wp\/v2\/pages\/229","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stellartech.science\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/stellartech.science\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/stellartech.science\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/stellartech.science\/wp-json\/wp\/v2\/comments?post=229"}],"version-history":[{"count":21,"href":"https:\/\/stellartech.science\/wp-json\/wp\/v2\/pages\/229\/revisions"}],"predecessor-version":[{"id":1031,"href":"https:\/\/stellartech.science\/wp-json\/wp\/v2\/pages\/229\/revisions\/1031"}],"wp:attachment":[{"href":"https:\/\/stellartech.science\/wp-json\/wp\/v2\/media?parent=229"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}