{"id":94,"date":"2017-02-27T19:01:20","date_gmt":"2017-02-27T19:01:20","guid":{"rendered":"http:\/\/stf1.com\/news\/?p=94"},"modified":"2017-03-23T16:08:35","modified_gmt":"2017-03-23T16:08:35","slug":"every-millimeter-matters","status":"publish","type":"post","link":"http:\/\/stf1.com\/news\/?p=94","title":{"rendered":"Every Millimeter Matters"},"content":{"rendered":"<p>The STF-1 spacecraft is so small that on multiple occasions, measurement errors of less than a quarter millimeter have caused concern. \u00a0One example of this occurred during the model review of the battery unit. \u00a0The EPS was colliding with the chassis as highlighted in the image below in blue. \u00a0The fix for this was as simple as ensuring the connectors were fully mated, but even adjusting the EPS this much caused the entire spacecraft to have to be rechecked.\u00a0<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-95 size-medium\" src=\"http:\/\/stf1.com\/news\/wp-content\/uploads\/2017\/02\/every_mm_maters-300x257.png\" alt=\"every_mm_maters\" width=\"300\" height=\"257\" srcset=\"http:\/\/stf1.com\/news\/wp-content\/uploads\/2017\/02\/every_mm_maters-300x257.png 300w, http:\/\/stf1.com\/news\/wp-content\/uploads\/2017\/02\/every_mm_maters-768x658.png 768w, http:\/\/stf1.com\/news\/wp-content\/uploads\/2017\/02\/every_mm_maters.png 868w\" sizes=\"(max-width: 300px) 85vw, 300px\" \/><\/p>\n<p>To provide some scope, on average a grain of sand is 0.5 millimeters and the head of a pin is 2.0 millimeters. \u00a0The STF-1 spacecraft has some very small components with low tolerances. \u00a0Even forgetting to include washers will cause issues during assembly. \u00a0Currently the STF-1 team is focusing very hard to ensure we use every piece allocated as the spacecraft gets constructed unit by unit from the top down.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The STF-1 spacecraft is so small that on multiple occasions, measurement errors of less than a quarter millimeter have caused concern. \u00a0One example of this occurred during the model review of the battery unit. \u00a0The EPS was colliding with the chassis as highlighted in the image below in blue. \u00a0The fix for this was as &hellip; <a href=\"http:\/\/stf1.com\/news\/?p=94\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Every Millimeter Matters&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"_links":{"self":[{"href":"http:\/\/stf1.com\/news\/index.php?rest_route=\/wp\/v2\/posts\/94"}],"collection":[{"href":"http:\/\/stf1.com\/news\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/stf1.com\/news\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/stf1.com\/news\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/stf1.com\/news\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=94"}],"version-history":[{"count":4,"href":"http:\/\/stf1.com\/news\/index.php?rest_route=\/wp\/v2\/posts\/94\/revisions"}],"predecessor-version":[{"id":108,"href":"http:\/\/stf1.com\/news\/index.php?rest_route=\/wp\/v2\/posts\/94\/revisions\/108"}],"wp:attachment":[{"href":"http:\/\/stf1.com\/news\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=94"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/stf1.com\/news\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=94"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/stf1.com\/news\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=94"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}