{"id":10341,"date":"2015-05-08T15:14:43","date_gmt":"2015-05-08T05:14:43","guid":{"rendered":"http:\/\/legoeng.local\/?p=10341"},"modified":"2020-05-01T15:53:27","modified_gmt":"2020-05-01T05:53:27","slug":"ev3-projectile-launcher","status":"publish","type":"post","link":"http:\/\/legoeng.local\/ev3-projectile-launcher\/","title":{"rendered":"EV3 Projectile Launcher"},"content":{"rendered":"<p><a href=\"http:\/\/legoeng.local\/wp-content\/uploads\/2015\/05\/projectile-launcher-screenshot1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-thumbnail wp-image-10430 alignright\" src=\"http:\/\/legoeng.local\/wp-content\/uploads\/2015\/05\/projectile-launcher-screenshot1-150x150.jpg\" alt=\"projectile launcher screenshot\" width=\"150\" height=\"150\" \/><\/a>This is the EV3 projectile launcher, inspired by <a href=\"https:\/\/www.youtube.com\/watch?v=cVMBcq6UY28\" target=\"_blank\" rel=\"noopener\">RobotlCare\u2019s Ball3r<\/a>.<\/p>\n<p>The goal behind the EV3 Projectile Launcher is to provide students with a way to explore projectile motion by creating a\u00a0LEGO EV3 robot to generate it.<\/p>\n<p>After creating the launch structure, students will need to derive a relationship between EV3 motor power, and the distance a ball is launched. This relationship is then incorporated into an EV3 program used to control the robot. Using the EV3 Ultrasonic sensor, the projectile Launcher senses the distance to a desired target, and then calculates the necessary motor power to launch a ball the\u00a0correct distance. A target can be placed anywhere within a 15in radius and the projectile launcher will successfully hit it!<\/p>\n<p><iframe loading=\"lazy\" title=\"EV3 Projectile Launcher Informational Video\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/4risclUjeXg?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p>Challenging students to create an EV3 projectile launcher is a hands on way to explore projectile motion\u00a0in the classroom. To\u00a0start, the physical build of the shooter challenges students to think critically about how to build something that will execute a desired function. Next, the relationship between the distance the ball is shot and the power of the motor must be derived through data collection and analysis.<\/p>\n<p><iframe loading=\"lazy\" title=\"EV3 Projectile Launcher: Classroom Tips\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/CbJNw5dsRdI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<h2>Resources<\/h2>\n<ul>\n<li><a href=\"http:\/\/legoeng.local\/wp-content\/uploads\/2015\/05\/EV3-Projectile-Launcher-Build-Instructions.pdf\">EV3 Projectile Launcher Build Instructions<\/a>\u00a0(pdf, 39MB)<\/li>\n<li><a href=\"http:\/\/legoeng.local\/wp-content\/uploads\/2015\/05\/EV3-Projectile-Launcher-Data-Sheet1.pdf\">EV3 Projectile Launcher Data Sheet1<\/a> (pdf)<\/li>\n<li><a href=\"http:\/\/legoeng.local\/wp-content\/uploads\/2015\/05\/EV3-Projectile-Launcher-Program.ev3_.zip\">EV3 Projectile Launcher Program<\/a> (zipped EV3 file)<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>This is the EV3 projectile launcher, inspired by RobotlCare\u2019s Ball3r. The goal behind the EV3 Projectile Launcher is to provide students with a way to explore projectile motion by creating a\u00a0LEGO EV3 robot to generate it. After creating the launch structure, students will need to derive a relationship between EV3 motor power, and the distance [&hellip;]<\/p>\n","protected":false},"author":454,"featured_media":10430,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[99,301],"tags":[152,143,158,121],"_links":{"self":[{"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/posts\/10341"}],"collection":[{"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/users\/454"}],"replies":[{"embeddable":true,"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/comments?post=10341"}],"version-history":[{"count":0,"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/posts\/10341\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/media\/10430"}],"wp:attachment":[{"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/media?parent=10341"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/categories?post=10341"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/legoeng.local\/wp-json\/wp\/v2\/tags?post=10341"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}