Plenary Presentation
Dynamic Poising of Balance Wheels
Blair Chandler - OVWCCC Member
Blair Chandler will deliver a presentation focusing on the dynamic poising of balance wheels, an essential aspect in the construction and performance of wrist watches and pocket watches.
The process of dynamic poising involves ensuring that the balance wheel is evenly balanced while in motion. This careful adjustment reduces the risk of irregular movement and enhances the accuracy of the watch.
By addressing the specific techniques and considerations for each type, Blair will provide valuable insights into improving the timekeeping precision of horological devices.
1. Introduction
2. Adjustment of Hairspring in Regulator Pins.
3.Checking and Correcting Balance Wheel
4. Correcting Balance Wheel with Truing Calipers
5. Truing in the Round
6. Truing in the Flat
7. Definitions
8. Quick Review of a balance wheel and its’ functions
9. Poising a balance wheel on a traditional poising tool (Static Balancing)
10. Dynamic Poising of Balance Wheels.
11. Finding the heavy side of the balance from Dynamic Poising.
12. How to eliminate the out of poise condition while also keeping or putting the regulator in the middle.
13. Determining the best and easiest ways to remove or add weight to the balance wheel.
14. Tools for working with balance screws and washers.
15. How to check the results and interpret them to decide on the next adjustment needed.
16. Example – Elgin 7 Jewel Pocket Watch 18S Model 5
Blair has a background in Mechanical Engineering and worked as an Industrial Engineer for most of his career.
Blair is a dedicated horologist with over 14 years of experience repairing watches and clocks, and spent his carrer in Mechanical Engineering. He has been an active member of the NAWCC club in Montreal for more than 12 years and joined the OWVCCC in Ottawa over three years ago, where he regularly teaches and presents technical topics. Blair’s passion for collecting timepieces, tools, and books, along with his technical presentations, has made him a valuable contributor to the horological community.
Buy, Sell & Swap Mart
There will be the usual mart where members are invited to offer items for sale. Please bring your unwanted items to sell or barter. Tables are free to members
Meeting Location
The Top Generation Club in Ramsayville. Click here for the location and directions.