{"id":13950,"date":"2020-05-19T17:29:35","date_gmt":"2020-05-19T07:29:35","guid":{"rendered":"http:\/\/legoeng.local\/?p=13950"},"modified":"2020-05-20T17:30:39","modified_gmt":"2020-05-20T07:30:39","slug":"figure-8","status":"publish","type":"post","link":"http:\/\/legoeng.local\/figure-8\/","title":{"rendered":"Figure 8"},"content":{"rendered":"
Here is a simple idea that I often use when I need a quick challenge for speedier teams to work on while they are waiting for the rest of the class. For example, when I’ve asked all teams to make a standard build such as the Robot Educator Model.<\/p>\n Program a robot to drive around four chair legs in a “figure 8” pattern.<\/p>\n A four-legged chair or equivalent.<\/p>\n As can be seen in the photo, I usually use a few pieces of tape to mark the starting line and the position of the chair legs.<\/p>\n Although this is of course a fairly straight-forward challenge, I find it useful for exploring different ways of making a two-wheeled robot turn, including:<\/p>\n Having successfully completed a single “figure 8”, I like to challenge teams to see how many times their robot can perform the circuit without intervention. This raises questions of reliability and repeatability, and leads nicely into a discussion around the limitations of dead reckoning. For more on this topic, see Why Doesn’t My Robot Drive Straight?<\/a><\/p>\n<\/a>
The challenge<\/h2>\n
Equipment required<\/h2>\n
Teacher notes<\/h2>\n
\n