A Beginners Clock

Re: The next project

Next item is a lantern pinion
Same set up with 80t gear to index 8 pins.

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On test with its mating gear, works perfectly.

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Brian.

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Re: The next project

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Have you made a five leaf lantern pinion before Bruce? It looks a bit mean to me

Richard
 
Re: The next project

Hi Richard
On clocks of this type it is more common to have a 4 leaf pinion to drive the hour wheel.
but I dont like them, It leaves very little space in the centre for the arbor.
On this clock I have had to use numbers that I can index with the change wheels of the lathe.
Minimal tooling is what this clock is all about, so it can be made by somone new to the hobby.

Brian.
 
Re: The next project

Well, it's infinitely better than a four leaf pinion!

I do understand and agree with your aims too, just curious about having only five leaves. If it works, it works!

Richard
 
Re: The next project

Hi Richard.

This gear and its partner must have a 12-1 ratio because it is part of the hands drive.

So even one tooth up on this pinion has a big efect on the size of all the other gears.

If I was making a better quality clock the answer is to make the teeth smaller and have more of them.

But this clock is made with one cutter ( minimal tooling again ) and this module is selected because it is tolerant of dirt, the cutter is easy to make, and the maths are easy to understand, with MOD 1 the PCD in mm is the same as the number of teeth.


Keeping the clock simple to make involves many inter-related problems.

Brian.
 
Re: The next project

The last pinion is now finished.

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on test.

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Assembly can now continue.:))

Brian.

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Re: The next project

Marking out the position for the next arbor using the depthing tool.


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Slowly slowly.

Brian.

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Re: The next project

The first trial assembly.

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This pair run smooth so its on to the next.:))

Brian.

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Re: The next project

:happyhappy:
3rd Arbor fitted, thats the power train finished.


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Brian.

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Re: The next project

Hi Brian, I repair old clock movements and prefer to make / repair parts rather than buying them. I have been following your progress. Very nice work indeed.. I often have to make tools etc in order to make repairs, but your craftsmanship is awesome.

David
 
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