Part 3/6:
The assembly involves inserting these cotter pins into designated areas, such as the side of the clock and the rails. The rails themselves are held in place by these pins, creating a sturdy yet precise movement mechanism. The fabricating process includes machining the cotter pins to fit tightly, with slight tolerances that are considered normal in high-precision work.
The maker mentions that the parts are so well manufactured that there is almost no space between components, indicating high-quality craftsmanship. Additionally, there’s a note about machining the cotter pins to match an existing set in diameter—specifically 25/64 inch—to ensure exact fitting.