Laird's Clip-On Tramming Gauge for Replicator

Modified garyacrowellsr's clip to hold a Pittsburg 1" Travel Machinist's Dial Indicator, item 623, as sold by Harbor Freight (http://www.harborfreight.com/1-inch-travel-machinists-dial-indicator-623.html). It's a very cheap analog device designed precisely for this purpose - measuring the distance from a mobile mount point to a bed to level it, with a "roller ball" tip so that it moves smoothly over the bed surface. The clip holds the gauge in a vertical position so that it's easy to read. The g