"a Horizontal Dividing Head " -in baltic birch plywood, aluminum t-track, assorted metal fittings
This fixture was designed and fabricated to drill out the primary body tubes of the lights shown here. The fixture itself is used on a drillpress. The support arms are adustable to accomodate different length tubing. The sabot inserts are also interchangeable, to allow for different tubing diameters.
The dividing head itself is resettable, as the embedded 360 degree protractor floats within an adjustable locking mechanism. Also, the entire carriage slides within a mounting saddle, to index the columns of holes as they're bored.