Video showing how mounting a digital gauge on a vernier height gauge can be a great time saver for certain types of measurement. There is a full description at; www.homemadetools.net/forum/di...
One method to measure dimensions greater than the range of the dial indicator is to measure a difference between the point being measured and a stack of gauge blocks of a height close to the height of measured point. High accuracy can be achieved using gauge blocks and surface dial indicator instead of regular dial indicator.