Hi all just needing some advice regarding the setting up and balancing of my pendulum setup. I emailed Brian Laws whom I purchased the plans from and asked him about how to set up the pendulum. This was his reply...
"The pendulum bob doesn't need to be particularly heavy, the important thing is to adjust the length until the centre of gravity of the pendulum assembly's about 1meter from the pivot. try this laying the whole assembly horizontally across a straight edge and adjust to the point of balance till the straight edge is 1meter from the pivot".
Ok that that mean that i need to add weight to my bob (495 grams) until the whole assembly will balance 1 meter from the pivot?. Why is that? Doesn't it just swing? How does balancing it horizontally help it swing vertically?Is there something i I am missing. Is the 1 meter important in setting the length of time the bob swings for or is it the center of mass of the assembly?. I know the longer the pendulum rod the slower the clock will run.
I take it I can both add weight to the bob and make the pivot lighter to help balance things...
The picture shows the bob located 1 meter from the pendulum head set up.
https://www.woodworkforums.com/member...lum-set-up.jpg
Cheers
Dean.