Dial Indicator Holder For Printrbot Simple Metal

This Thing holds a pretty cheep dial indicator and helps me with bed leveling and span calibration. To know the accuracy and repeat-ability of your machine is well worth the time invested. The Dial indicator fits snugly and requires assistance in the form of the pry bar. The dial indicator I used is: http://www.amazon.com/gp/product/B002YPHT76 for about $30

I have a test routine and spreadsheet that helps me determine my current tolerance and repeat-ability that checks 75 points. I will one d