Cutting of counterweight holes in the Revolving Shutter
To balance the Revolving Shutter for a smoother operation we needed to cut holes
and to fill them with heavy led counterweights.
This picture shows the two disks carrying the Work Generating Volume (VGW). This GREC
LAB-Model v.2 has two layers, so these two disks with their quarter openings
build up one Work Generating Volume. They are displayed on top of the mid
layer fins placed on the endplate on the granite assembly table. The
Work Generating Volume (WGV) is the sum of the big quarter openings of each disk.
To compensate for the material taken away from the quarter openings of the Work
Generating Volume (WGV) we will fill the symetrically machined holes on each side
of the quarter openings with led.