A Lego clock
Clock I - a fully functional clock, with hour, minute, and second hand. The gearing was fun to do, and the project is my first use of the rotation sensor: it keeps track of rotations allowing me to track time. In the only real test I gave it, it only lost about 5 minutes over a 4 hour span. Not quite NIST quality, but fun for the first try.
<p > </p> <p > <a href="clocki.ldr">Here </a>is the MLCAD file (11K).</p> <p > </p> <p > A face shot showing the hands. Hour is on left, minute in middle, and second on right.</p> <p > <img alt="Clock Face" src="ClockI_face.jpg" width="640" height="480"/></p> <p > <a href="http://legOS.sourceforge.net">legOS</a> <a href="clocki.c">source code</a>. This code is not finished (for example, it makes the clock run backwards at the moment). If I get time I want to add functions to set the time, add an alarm clock, and make it play the standard clock tune every hour or half hour.</p> <p > </p> <p > <a href="ClockI_r3d.zip">Zipped Real3D</a> (1.13 MB) file created my converter from MLCAD, with <a href="clocki.zip">zipped output file </a>(1MB).</p> <p > </p> <p > Perhaps if I get time I'll post a tutorial here on building this robot</p> <p > </p> <p > Miscellaneous Pictures - click for a 1280x1024 <a href="clocki.png">PNG(355K)</a> or <a href="clocki.jpg">JPG (108K)</a></p> <p > </p>