Miscellany

Machine><!-- Three axis desktop mill machine definition  The units are presumably inches  The table is 10x4, and the travel is about 6x4x4--><define name="bed">    <HalTranslate args="'x', 1, 0, 0">        <Translate args="0,0,-3.5"><BoxCenteredXY args="10,4,.5"/></Translate>        <Translate args="0,0,-4"><BoxCenteredXY args="10,2,.5"/></Translate>    </HalTranslate></define><define name="yslide">    <Box args="-2,-6,-4.5, 2,5,-4"/>    <HalTranslate args="'y', 0,1,0">        <use name="bed"/>    </HalTranslate></define><Box args="-2,-6,-4, 2,-4,7"/><HalTranslate args="'z', 0,0,1">    <Box args="-2,-4,4, 2,1,7"/>    <CylinderZ args="2,.5,4,.5"/></HalTranslate><use name="yslide"/></Machine>