Thread: My Wooden geared clock

Would it have been feasable to turn that weight wheel 90 degrees on the horizontal, and put in on the lowest axle? Or would it then be too close to the thread drum?

Cheers

Originally Posted by 1964deano

Thanks Rod Yes It feels like it. Take a look at the new gear train...
YouTube - Broadcast Yourself
ps does anyone know how to embed videos within the post?. I tried using the embed code from youtube and this is all I get.
<iframe width="420" height="315" src="YouTube - Broadcast Yourself" frameborder="0" allowfullscreen></iframe>

Dean

Using the plain youtube link, add &feature=youtube_gdata_player to the link.

So it becomes http:// youtube.com/watch?v=xxxxxxxxxxx&feature=youtube_gdata_player

[ame="http://www.youtube.com/watch?v=AiaJIJh6DyM&feature=youtube_gdata_player"]Deans Wooden Clock Take 3 - YouTube[/ame]

Cheers

sorry to say your video runs for 3 seconds then freeze's up at my end ??? might be my end ???i had 4 go's at it ??

thanks Rod how did you learn to do that? .....Dont quite understand what you are proposing with turning the weight wheel horizontal; if you mean to mount it as an idler on the lower shaft that wont work. 5kg running through any shaft will stop the clock working.
Sawdustsniffer it works ok at my end must be yours prephaps. What player are you using? Have you tried it out on Youtube?
Dean.

Originally Posted by 1964deano

thanks Rod how did you learn to do that?

If I tell you, I will have to kill you.

if you mean to mount it as an idler on the lower shaft that wont work. 5kg running through any shaft will stop the clock working.

Yes, this is what I was suggesting. Interesting that you have 5, or is it 10 kg's running on the second lowest axle, but the clock still works. Sorry, you've now got me puzzled.

Sawdustsniffer it works ok at my end must be yours perhaps. What player are you using?

Works ok for me too. I did test it before posting it.

Cheers

No I have 10kg running the clock 5 down each side.....I tried re-routing the rhs string using two idlers but they didnt work.Now I have the two 5ks running on the drum but now they are pulling more or less opposide each other; in this way they are a couple and cancel each other out in terms of torsional forces.ce?
Dean.

And here's a thought,

I wonder if a larger drum diameter would help your weight issue?

We all know, when we need to lever something, we get the longest bit of pipe or 4 x 2 to do the lift. So if the string was pulling from a larger radius away from the axle, it would require less force, hense weight, to do the same job.

Just a thought.



Cheers

A larger drum will significantly affect the running time.........wheres that options box located? to embed stuff?

Dean.

Originally Posted by 1964deano

A larger drum will significantly affect the running time

But would it though?

With a larger radius, it would turn slower in order to keep the same time? Or would there have to be a change in the gear ratios somewhere?

wheres that options box located? to embed stuff?

Look in the window below the reply box. (Not the quick reply window) I have the first three of the four options enabled.

Cheers

Originally Posted by 1964deano

No I have 10kg running the clock 5 down each side.....I tried re-routing the rhs string using two idlers but they didnt work.Now I have the two 5ks running on the drum but now they are pulling more or less opposide each other; in this way they are a couple and cancel each other out in terms of torsional forces.ce?
Dean.

So when they were pulling in the one direction, they were bending the drum shaft? I can see that as being an issue.

Cheers

No a larger radius drum would mean less weight required but would not affect gear ratios in any way.The larger drum would mean that there are fewer turns thus shorter run time.
Dean

Originally Posted by 1964deano

No a larger radius drum would mean less weight required but would not affect gear ratios in any way.

Sorry. I meant changing the gear ratios somewhere to make the drum turn slower, so that you end up with the same string speed as now.

Cheers

Hi all next up for me is the handwheel. Here is a prototype I did. Not quiet happy with how much timber I will be using so have started on a design that is built like an old fashioned wagon wheel. It will use alot less timber but has structural difficulties associated with its manufacture. Below is a pic of my original design.

Hi all have have started on my handwheel; it is 300mm in diameter; bigger than my machine can handle. This will replace the crank and square shaft from the front of the clock. The pic below shows the original design. I have always to do a design that went together like an old fashioned wagon wheel. Still finalising trhe design but I am keen on it because it used alot less timber than the design below.


dean.