Pendulum Bob

[wematinka]

I need some guidence for a Pendulum Bob that I need for a Hermle 1051.030A.38 movment. Could someone please tell me what size, model, weight and other revelant dimensions I need for a bob for this movment. Also where would be best to get a bob from. Another question, I intend to make a case for this movment using a Westminster chime. Would any one have an idea as to what dimensions I would need for the interior of the case? Thank you for your time, and considerations.

Big AL

 

[RickB]

It will take a 38CM pendulum, with a 2.5" bob.

Have look on the left side of this page.
http://www.clockworks.com/cpendulums.html

 

[shutterbug]

You need the width of the movement plus some wiggle room, the height of the movement with the pendulum mounted plus a couple of inches, and the depth of the movement plus the chimes. Anything more than that is up to your imagination

 

[Willie X]

Would any one have an idea as to what dimensions I would need for the interior of the case? Thank you for your time, and considerations.

Big AL

The case will look funny if it is to deep but it may be imposable to use your movement if it is to shallow. Width will be determined by the outer limits of the pendulum swing + about 1 1/2 inches for good measure. Length will be determined by the pendulum, a lyre pendulum will need about 2 or 3 inches more than a simple stick and bob pendulum. Most of these have 3 1/4 to 4 1/2 inch disk bobs and a wooden stick but you can choose anything you like as long as the length is correct to rate. I've even done some with old American style wire suspension rods and simple lead (or iron) bobs.

Ok ... so the best thing to do would be to set your movement up on a stand and wait until you find a pendulum that you like. When you have the movement keeping time, then you can take measurements for the future case. Don't forget to consider where the chime block and rods will go.

I always like to look at older classic designs to get ideas, then go from there. You want your clock to look handmade, not homemade!

Willie X

 

[wematinka]

Thanks for the information, and advice. I value your input more than I can say. Again, thank you very much.

Big AL