Creative Robotics\u2019 HUB-ee wheels are just what they sound like: hub wheels, where the motor is contained inside the wheel\u2019s hub to save space on your robot. Hub wheels are great for complicated builds like rack-and-pinion steering rigs where you want wheels that both drive the robot as well as turn to steer. They also make for very clean builds because a lot of components you could normally see are hidden.<\/p>\n
Each HUB-ee Wheel consists of a 12mm gearmotor, a small circuit board equipped with a motor driver chip and a quadrature encoder, as well a gearbox, all concealed inside the hub. They come in a small number of configurations: 180-1 and 120-1 gear ratios, available in either metric or imperial.<\/p>\n
The wheels connect to a microcontroller with a Micro-MaTch ribbon cable, and Creative Robotics also offer breakout boards for managing these connectors, as well as a HUB-ee friendly prototyping shield. If you don\u2019t want to use the breakout boards, Creative Robotics shows you how to cut a Micro-MaTch cable in half and attach the wires individually to the controller.<\/p>\n
The HUB-ee wheels attach to your robot\u2019s chassis one of two ways. The first are fairly typical M3 screws. The other is much more intriguing: the M3 holes also double as Lego cross-axle holes that accommodate a standard cross-connector pin. These holes don\u2019t go all the way through, limiting the tensile strength of this attachment method. However, the cross-holes are on both sides of the wheels, allowing you add support to either side.<\/p>\n","protected":false},"excerpt":{"rendered":"
Robotic add-on for Lego<\/p>\n","protected":false},"author":76,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[17],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/kk.org\/cooltools\/wp-json\/wp\/v2\/posts\/22404"}],"collection":[{"href":"https:\/\/kk.org\/cooltools\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kk.org\/cooltools\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kk.org\/cooltools\/wp-json\/wp\/v2\/users\/76"}],"replies":[{"embeddable":true,"href":"https:\/\/kk.org\/cooltools\/wp-json\/wp\/v2\/comments?post=22404"}],"version-history":[{"count":2,"href":"https:\/\/kk.org\/cooltools\/wp-json\/wp\/v2\/posts\/22404\/revisions"}],"predecessor-version":[{"id":22623,"href":"https:\/\/kk.org\/cooltools\/wp-json\/wp\/v2\/posts\/22404\/revisions\/22623"}],"wp:attachment":[{"href":"https:\/\/kk.org\/cooltools\/wp-json\/wp\/v2\/media?parent=22404"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kk.org\/cooltools\/wp-json\/wp\/v2\/categories?post=22404"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kk.org\/cooltools\/wp-json\/wp\/v2\/tags?post=22404"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}