
HOW A PENDULUM CLOCK WORKS - NAWCC Forums
Jan 21, 2015 · The pendulum hangs from a flat suspension spring, and swings freely. But the rod or leader of the pendulum passes loosely through a loop in the end of the crutch.
ALL ABOUT PENDULUMS - NAWCC Forums
Jul 9, 2013 · A basic pendulum consists of a weighted bob, and a stick, hanging from some suspension point. The pendulum is the whole thing, because when we talk about "the mass (weight) of a …
Pendulum does not keep swinging - NAWCC Forums
Jan 28, 2018 · Remember the clock movement powers the pendulum, the pendulum does not power the clock. The fact that the clock runs with the pendulum off indicates that all the internal moving parts …
Seth Thomas Mantel Clock ID and Pendulum Help - NAWCC Forums
Aug 17, 2025 · 1. I need a pendulum. On eBay there are a few marketed for #89 movements. Are all #89 pendulums compatible? Do I need a particular one? 2. How old is this clock? On the back door is …
Cuckoo pendulum keeps stopping - NAWCC Forums
Nov 2, 2022 · Have a Schneider cuckoo clock, just bought it used, looks very nice & not too old, having a problem with the pendulum, it keeps stopping & only swings for up to about 3 minutes. I loosened …
Beat Setting 101 - NAWCC Forums
Nov 21, 2011 · The pendulum passes back and forth across the beat-center in its progression from tick to tock and back. The clock is in beat when the beat-center is perfectly vertical: tick and tock …
Escape Wheel Calculation (Pendulum Clock) - NAWCC Forums
Apr 14, 2023 · Hi, I have constructed a 3D printed 4 wheel pendulum clock with a 30 tooth escape wheel and a pendulum length of 39", which works fine (PIC BELOW). If I wanted to create a clock with a …
Clock Repair - NAWCC Forums
Apr 24, 2026 · Clock movement repair techniques and troubleshooting problem area.==> PLEASE POST PHOTOS WHEN ASKING QUESTIONS - We need to see what you're seeing! Clock Hints & …
400-Day & Atmos - NAWCC Forums
Oct 12, 2025 · Anniversary, 400-Day, Atmos and other Torsion pendulum Clocks. Collecting, Identifying and care.
Clock Parts Terminology - NAWCC Forums
Jan 4, 2007 · Pendulum returns again and another impulse provided to pendulum as tooth pushes against EXIT impulse (LIFT) face. Drop precedes next entrance lock. The terms used in this diagram …