Rigging Cord Measurer Plus! (continued)

" There was an unexpected bonus with this tool. Since it can measure any height from .000" to 1.000" by .001"'s ( one thousandth of an inch), it can be used in lieu of a micrometer with out the possible errors introduced by the operators "feel", which is a prime requisite of using/reading a micrometer.

Now, before I describe how I built it, I would like to say that the heart of the unit is the base block which is a commercial item used for set ups on the "Moore Jig Boring" machines. It is 1.0000" by 2.0000" by 3.0000" that is held to size and flatness and parallelism within .0002" ( two ten thousandths of an inch).

Equally in importance is the Drop Dial Indicator, which is mounted with the angle brackets to "read" the base block. It has a one inch stroke with a dial that reads in .001"'s (one thousandth of an inch) per division.

The baseplate is drilled, using the coordinates found on the drawing. Two of the holes are for the 6- 32 Flat head screws that hold the gusset to the baseplate. Four of the holes are for the 1/4"-20 Button Head Screws that hold the base block to the baseplate.

Next, the upright is drilled.  It has a total of twelve holes.   Six are for the 6-32 Flat Head Screws that secure the gussets.   Two are for the 1/4"-20 Button Head Screws that hold the spacer block in place.   Four are for the 10-32 Button Head Screws that hold the brackets to the upright.

Then, the gussets are drilled and tapped for the 6-32 Flat Head Screws.   There are four holes in each gusset.

Now come the aluminum brackets (Left, Right).   Drill two holes (each )for the # 10 Button Head Screws that hold the brackets to the upright.   Drill one hole ( each ) for the Indicator Mounting Screw.

The rest is assembly.

Now, since I discovered the "bonus" (height measurements) , I am changing the name of the unit to: "Rigging Cord Measurer Plus" ! "