Finally finished my comparator stand.

[Parlo]

This compararor stand keeps the mechanism dust free and with a ground Brass non magnetic base it can also be used on magnetic chucks. Protective rubber rings can be removed to use as a squareness comparator. The column can be rotated to 4 positions depending on the application. Initially designed to be motor driven, I have decided to research this further while also investigating more indicator holders and other accessories.