Return-Path: Received: from fort-point-station.mit.edu by po12.mit.edu (8.9.2/4.7) id HAA06996; Sat, 17 Mar 2001 07:37:20 -0500 (EST) Received: from ns.crynwr.com (ns1.crynwr.com [192.203.178.14]) by fort-point-station.mit.edu (8.9.2/8.9.2) with SMTP id HAA07142 for ; Sat, 17 Mar 2001 07:37:19 -0500 (EST) Received: (qmail 20642 invoked by alias); 16 Mar 2001 23:02:38 -0000 Mailing-List: contact lego-robotics-help@crynwr.com; run by ezmlm Delivered-To: mailing list lego-robotics@crynwr.com Received: (qmail 20617 invoked from network); 16 Mar 2001 23:02:37 -0000 X-Envelope-To: lego-robotics@crynwr.com X-Loop: lugnet.robotics@lugnet.com X-Message-Archive: http://news.lugnet.com/news/display.cgi?lugnet.robotics:14661 From: Andrew Lipson X-Real-Life-Name: Andrew Lipson Sender: news-gateway@lugnet.com Errors-To: news-errors@lugnet.com To: lego-robotics@crynwr.com Subject: Re: BrickBots.Com Contests Extended - Balancing a Pendulum is HARD! Posted-Date: Fri, 16 Mar 2001 23:00:58 GMT Date: Fri, 16 Mar 2001 23:00:58 GMT Organization: None Message-ID: <3AB29B2A.230AB383@surfree.com> References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit MIME-Version: 1.0 Precedence: list X-Evolution: 0000010f-0000 Richard Sutherland wrote: > I have been working on the Inverted Pendulum Balancing with very limited > success. Perhaps the combination of RCX and Lego pieces are not up to the > challenge? I will be posting my half finished attempt later today, but it > performs about the same with the RCX on or off :-) The speed of the motors > and the reaction time/resolution of the robot as I have it setup does not > seem to be enough... > > Has anyone else had any success? Can anyone who built one of these in > college provide thier opinion on the feasability with the RCX/Legos? I've built two different designs, each of which can stay balanced for typically 6 seconds or do before giving up and dying spectacularly (one of these was nearly as tall as I am). I'm glad you extended the contest - I still have hopes of getting something to last the full 30 seconds with a bit more effort. -- Did you check the web site first?: http://www.crynwr.com/lego-robotics