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This clock uses a steel ball which takes 30 seconds to complete its travel through a race at which time it triggers a release allowing the table to flip the other way. In a years time the ball travels 2500 miles. From 1820.
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I thought this was a fantastic mechanism.
That is super cool. I wonder what all the movement does to the runtime. Each moving part is swinging at the same rate as the pendulum.
A simple pendulum swinging needs to restore very little energy to keep the clock running. Adding additional pivot points must add a lot of friction.
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While vacationing in London we had the chance to Visit the national Museum. While there I saw some pretty fantastic clocks. One was this regulator. It was running perfectly and exactly accurate. I couldn’t believe how slight the pendulum movement was. You can read about it and see it in operation in the attached video.
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Boa noite pessoal, existe alguma licença comercial para os relogios?
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I'm confused as to which gear 7c_clicks.stl file to print. One is named gear 7c_clicks and the other is gear 7c_clicks_v2.stl
Does it matter which one, or is it better to print the version 2?
Thanks!
V2 should be a better version, or else it wouldn't have been released. I can't see the files right now. It may have added locking tabs to prevent the springs from flying out when you take the ratchet apart. Functionally it is the same with less chance of losing the springs.
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I am interested in SP11, and am wondering if you sell a parts kits for this model? I purchased the kits for my other two wall clocks.
I actually found this for $48 dollars... does it include everything I need to build the clock? Board and parts? https://www.etsy.com/listing/1464560995/silent-shield-clock-controller?variation0=3431579134
Thanks! Steve
Yes. The electronics and hardware parts kits are available at Silent Shield Clock Controller - Etsy
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SP13 clock, the gears are all running well - been ticking away for 4 days now.
The problem is that the hands aren't moving - and I believe that gear 4a is not driving gear 4b through the friction spring.
I have checked 4b is locked properly to the arbour with the M3 screw, so it seems it is 4a freely rotating and not driving the arbour (and 4b) through the spring.
Any tips for debugging this specific issue? Thanks!
Quick question for the group - my clock is running perfectly on 2.7kg (~6lbs) main weight, but I am sure it will run on a lot less. Is there an advantage one way or the other to using more or less weight? Pendulum is currently plus/minus 14 degrees of arc.
I designed my own weight shell to suit a large lead ingot I had in, so it's a bit of a mission to cut sections off the ingot to try it (would be easier with lead shot obviously).
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I've followed Steve's Clocks for a few years and downloaded (and paid for) a couple of his designs but this is the first one I've actually had time to build. Loving it - such a beautifully designed clock.
Right now I'm just testing the weight (2.7kg and running well) and as I have a some lead ingots but no lead shot, I need to design a new weight shell for my purposes.
Couple of comments - Steve's instructions use 3mm stainless bar, and 1.5mm music (piano) wire for the arbours. From my engineering understanding, brass is a better option as it's self-lubricating. I found both 1.5mm and 3mm brass rod for cheap on Amazon in the UK (search for Sourcing Map Brass Rod).
I also found some low cost low friction bearings on Amazon which I'm using successfully without flushing first (my pendulum has a free swing time of 9…
Looks good. This is an easy clock to get running.
I specify music wire for the 1.5mm rods because it is always hardened. The brass you linked is listed as high hardness, which should be good. Brass can also be listed as soft, half hard, ultra machinable, or unspecified. Some of these might be too soft for the smaller diameter arbors.
I saw a guy on YouTube melting lead ingot using a pot with a small hole drilled in it. He held the pot over a tray of water to cool the lead as it dripped out. Of course, do this outdoors and use other safety measures when working with lead.
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It is a fascinating clock, but a horrible timekeeper. A tiny bit of dust changes the rate significantly.
I built a prototype tray for a similar clock years ago. It used a steel ball with contact wires to detect reaching the end of the track. An RC servo was used to tilt the table back and forth. A micro controller would control the RC servo and adjust the track tilt to keep the time accurate. The tilting track would ratchet the time forward. I realized that the clock could keep time by simply tilting the table every 15 seconds and the rolling ball becomes optional.