ABS indicator holder to level Rep 2 build plate

NOTE: This Thing is probably not water-tight. It prints out perfectly in ABS on my MakerBot Replicator 2X.

If you've spent much time leveling your printer's build plate (and you should, as it is probably the most important part of a successful build) you know how tedious and aggravating it can be. Having a dial indicator and a jig of this type, which sits on the 8mm rails of the gantry is a real time saver, and more accurate than using a piece of paper.

You will need to move the gantry (and the jig) around by hand, after bringing the build plate up high enough to engage the tip of the indicator. Do not use this with the built-in leveling routine of the printer. Zero the indicator, and adjust the three leveling screws below the build plate as needed to get the indicator to read 0 in all positions. If the build plate is a bit warped, you should still be able to 0 it in four corners.