tag:blogger.com,1999:blog-37077541.post8228946418223527752..comments2012-06-24T14:32:18.696+01:00Comments on Building the 2mm 08 shunter kit: Getting the motor workingGramhttp://www.blogger.com/profile/17377489365894836172noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-37077541.post-79574006535930280752007-01-24T22:01:00.000+00:002007-01-24T22:01:00.000+00:00Set your motor and gears up using an analogue amme...Set your motor and gears up using an analogue ammeter. <br /><br />The ammeter sits in series with the motor leads. You are aiming to get the lowest possible current at a given speed, and no flickering of the needle back and forth. <br /><br />If you get flicks on the needle, it usually means a gear is sticking (burr or dirt on a tooth). By watching the frequency of the needle flicks, and relating those to the rotation of the wormwheel, you can work out which wheel is sticking. <br /><br />Same trick to reduce friction in quartering.<br /><br />Analogue meters are better than digital for this, as most cheaper digital meters have considerable lag between measured current and displayed value.Anonymousnoreply@blogger.com