http://nxtasy.org/2007/03/21/nxt-mazerunner/ LEGO Mindstorms NXT Blog Forums Community Downloads Tutorials Fri, 04 Jul 2008 07:59:55 +0000 http://wordpress.org/?v=2.0.4 http://nxtasy.org/2007/03/21/nxt-mazerunner/#comment-41650 Sat, 22 Sep 2007 23:17:20 +0000 http://nxtasy.org/2007/03/21/nxt-mazerunner/#comment-41650 I have taken those image from the book "Building Robots with Lego Mindstorms NXT" and finally managed to create a 99% LDD model from those images. Anybody interested? Mail me to arnoldu at udeedv dot com I have taken those image from the book “Building Robots with Lego Mindstorms NXT” and finally managed to create a 99% LDD model from those images. Anybody interested? Mail me to arnoldu at udeedv dot com

]]> http://nxtasy.org/2007/03/21/nxt-mazerunner/#comment-11377 Sun, 08 Apr 2007 06:16:04 +0000 http://nxtasy.org/2007/03/21/nxt-mazerunner/#comment-11377 Very compact small footprint design. Could you post some pics of construction details?? Thanx Very compact small footprint design. Could you post some pics of construction details??
Thanx

]]> http://nxtasy.org/2007/03/21/nxt-mazerunner/#comment-10340 Mon, 02 Apr 2007 20:18:11 +0000 http://nxtasy.org/2007/03/21/nxt-mazerunner/#comment-10340 "detect stall using motor encoder": If the motor is not turning, it has stalled. Each motor counts how much it rotates using an encoder. Check this value every few microseconds. If it is does not change much, the motor has stalled. “detect stall using motor encoder”: If the motor is not turning, it has stalled. Each motor counts how much it rotates using an encoder. Check this value every few microseconds. If it is does not change much, the motor has stalled.

]]> http://nxtasy.org/2007/03/21/nxt-mazerunner/#comment-9118 Fri, 23 Mar 2007 16:00:42 +0000 http://nxtasy.org/2007/03/21/nxt-mazerunner/#comment-9118 Sorry, could you please explain with more details "detect stall using motor encoder" ? My English it's not so good. Thanks a lot Sorry, could you please explain with more details “detect stall using motor encoder” ? My English it’s not so good. Thanks a lot

]]> http://nxtasy.org/2007/03/21/nxt-mazerunner/#comment-8977 Wed, 21 Mar 2007 21:47:10 +0000 http://nxtasy.org/2007/03/21/nxt-mazerunner/#comment-8977 How well did it perform going backwards through the maze? I know that the US works best aimed dead on, but would it work to aim from the front right corner at 45 degrees to the left front? That gives some front collision detection to avoid the numerous backups. How well did it perform going backwards through the maze? I know that the US works best aimed dead on, but would it work to aim from the front right corner at 45 degrees to the left front? That gives some front collision detection to avoid the numerous backups.

]]> http://nxtasy.org/2007/03/21/nxt-mazerunner/#comment-8974 Wed, 21 Mar 2007 21:05:16 +0000 http://nxtasy.org/2007/03/21/nxt-mazerunner/#comment-8974 MazeRunner uses an ultrasonic sensor to look for left turns, and detect stall using motor encoder to turn right. MazeRunner uses an ultrasonic sensor to look for left turns, and detect stall using motor encoder to turn right.

]]> http://nxtasy.org/2007/03/21/nxt-mazerunner/#comment-8969 Wed, 21 Mar 2007 20:17:55 +0000 http://nxtasy.org/2007/03/21/nxt-mazerunner/#comment-8969 Watching your video made me think of the video on the Microsoft site about their Robotics Studio. They had a similar "maze" built out of books and cardboard boxes; the robotc was controlled via PC joystick, Robotics Studio on the PC and bluetooth connection. The response was so slow that it was almost impossible to navigate without lots of wall destruction. Your autonomous robot does a better job. Watching your video made me think of the video on the Microsoft site about their Robotics Studio. They had a similar “maze” built out of books and cardboard boxes; the robotc was controlled via PC joystick, Robotics Studio on the PC and bluetooth connection. The response was so slow that it was almost impossible to navigate without lots of wall destruction. Your autonomous robot does a better job.

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