As far as the actual project is concerned, this is a simplified design which uses one board for the entire clock, including circuits ... of making this project as small as possible.
The ‘stepper’ part of the stepper clock uses a 360 degree version of the VID28 stepper motor to reduce the height of the design and the cost of the project. Apart from the X12.017 driver ...
It had underground clockworks in a small cement building ... The Committee on Public Art paid $17,000 for the design, the clock mechanism and hands. The city was responsible for the start-up ...