Recent content by Bill Spence

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    Function Clock build from scratch

    Thanks Graham and Tok-tokkie for your helpful suggestions. I am going on a trip tomorrow, and won't be back till the 2nd week of June, so no more clock building for me until then. I will study the 30 leg gravity escapement clock. From a quick look at the NAWCC post, it is evidentially a...
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    Function Clock build from scratch

    Thanks for your comments. You are right, I said epicyclic but I meant involute. I just looked briefly at Boca's website- it looks interesting , with quite reasonable prices. The bearings I used on the drum shaft of my clock were acetal with SS balls from McMaster Carr. I also tried some 5/64...
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    Function Clock build from scratch

    There is a lot to be said for the knife edge pivots. They should lose less energy than pallet arbor pivots plus some losses in the crutch and very small losses in the suspension spring. I like just being able to lift the pendulum out.
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    Function Clock build from scratch

    Thanks for your awesome comment. You could make this (more accurately) on a powdered metal laser sintering 3D printer, but those machines cost upwards of $100,000. There is a nylon/aluminum powder composite product called Alumide that you can print on much lower cost 3D printers, but it only...
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    Function Clock build from scratch

    I have just built a mechanical clock pendulum from scratch, and I am interested in building another one. I am looking for suggestions for improvements to my current design. The clock is all aluminum (6061 alloy), except the pivots are SS shafts in clock brass bushings, there is lead in the...

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