Plywood clock

Bruthal

Started it this morning for the first time. Hands free for now.

https://www.youtube.com/watch?v=Gzx7mgzAlZE

Poor Uncle Tom

Up and running in its new home.......

Wibbs

Sadly I can't see your image P. Seems to be tied into google, so maybe you have to be a member/logged into that to see it?

Bruthal

Its possibly, and likely, that the picture address URL was copied and pasted, but the address no longer exists.

Poor Uncle Tom

Sorry about that, it is opening for me, but then again it would....:p

I'll see if I can find what I did wrong....

Eoin

As Wibbs said, it looks like a link to a gmail attachment, so you'd have access but we don't.

Bruthal

Hosting on something like photobucket will work. You can then embed the photos here with the photo button thing and the photo address, which will remain constant and accessible.

Poor Uncle Tom

I just want to try this....

please let me know if it works

Bruthal

Yes that worked perfectly now

Bruthal

Dont forget to set the hour hand at the proper position if its not at an hour marker when the minute hand is at 12:)

They wont drift apart, but can be knocked out if touch them by accident if setting the time.

Bruthal

Eventually did the hands gear train and the hands, and dial on the clock in posts 47, 51.

https://www.youtube.com/watch?v=_77LpYZM8qU

Bruthal

About 2 months ago I got a clock mainspring, and last tuesday I got onto the autocad and drew up a frame, used the same gear prints from the clock in the previous post, and modified the weight drive gear design to take the spring. The escape wheel is different though, it has 60 teeth on it instead of the usual 30, to accommodate a pendulum 1/4 the normal length.

https://www.youtube.com/watch?v=NNFkhJLTtT8

Deep Thought

Bruthal wrote: »

About 2 months ago I got a clock mainspring, and last tuesday I got onto the autocad and drew up a frame, used the same gear prints from the clock in the previous post, and modified the weight drive gear design to take the spring. The escape wheel is different though, it has 60 teeth on it instead of the usual 30, to accommodate a pendulum 1/4 the normal length.

Uhhhh ????:eek:

893bet

I am building a house at the moment and really want to make one of these a feature in the hallway!

peasant

Deep Thought wrote: »

Uhhhh ????:eek:

It's a plywood "Spring Drive" ...i.e. no weights

donegal.

wow, those clocks are amazing. Its time to give up the day job.

Bruthal

donegal. wrote: »

wow, those clocks are amazing. Its time to give up the day job.

I don't know about that. Its a lot of work cutting the parts out. Drawing them is time consuming too, although any particular design is at least just drawn once, with modifications later when improvements are thought of.

Its all just an interest I have.

Deep Thought

Bruthal wrote: »

I don't know about that. Its a lot of work cutting the parts out. Drawing them is time consuming too, although any particular design is at least just drawn once, with modifications later when improvements are thought of.

Its all just an interest I have.

Dont underestimate what you are doing, its a great skill

If ever off loading let me know...

Wibbs

Deep Thought wrote: »

Dont underestimate what you are doing, its a great skill

+1000. I once tried to make a grasshopper escapement out of wood and it ended up a well sanded slug that didn't escape…

Bruthal

Wibbs wrote: »

+1000. I once tried to make a grasshopper escapement out of wood and it ended up a well sanded slug that didn't escape…

Its one i`m going to have a go at soon I think. I added a grasshopper set of parts to one of the drawings today, to see how I will have to modify one of the existing frame drawings to take it. Needs a bit more height above the escape wheel than a deadbeat pallet needs. Its on the left of drawing, complete with escape wheel. Original escape wheel is on the other side of the hour hand gear set of 4 gears in the drawing and higher up.

This drawing of gears is from the clock first seen in post 16. I might end up with a well sanded slug myself:D

Wibbs

I highly bloody doubt it B.

Bruthal

Wibbs wrote: »

I highly bloody doubt it B.

What clock was it you had a go at, your own design?

Edit: I remember now you said it was your own design.

Wibbs

Bruthal wrote: »

I remember now you said it was your own design.

and that right there was the rock I was dashed upon B.

Bruthal

Wibbs wrote: »

and that right there was the rock I was dashed upon B.

Is there any trace of it left, or is it long gone?

Wibbs

Oh long gone. Couldn't keep the evidence around.

Bruthal

I was looking through the drawings I had done and decided to do a quick test rig and try out the grasshopper setup I had posted the drawing of in post 71, with some slight mods to it. Surprisingly enough, it worked easier than I was expecting.

https://www.youtube.com/watch?v=BaOnSKWay8g

Bruthal

That grasshopper will be in the next mechanism, which might be something different I have in mind, if it runs properly.

MiCr0

how about something like this as a follow on project?

https://www.youtube.com/watch?v=IvUU8joBb1Q

Bruthal

MiCr0 wrote: »

how about something like this as a follow on project?

Someone sent me that on YouTube the other day too.

Bruthal

I dont have enough steel shafts left to install all gears needed to run it properly, but I got enough together to sort of half test the mechanism.

No braking fins yet so the rewind is too fast. A temporary short pendulum as well means its ticking at double speed.

https://www.youtube.com/watch?v=hgHsjqVT_ek

Braking setup added, and its on temporary shelf with full length pendulum. Earlier grasshopper in it as well.

https://www.youtube.com/watch?v=kjL405S62VU

Bruthal

Proper main drive setup done now. I was surprised how well it ran on the first proper start.

https://www.youtube.com/watch?v=V4V2x6JLY60

Wibbs

I love this thread.

Bruthal

Did a bit on it today after leaving it running a couple of weeks, and so its probably just about done now. Perhaps paint hands or something. Drew up a sort of shelf that it just sits on, rather than screw it to the wall, for a change.

It can be seen that it is a one minute remontoire, as it goes from 22:11 to 22:12 at remontoire rewind. They are usually either 30 seconds, or one minute intervals, easily enough changeable from one to the other.

https://www.youtube.com/watch?v=BhiY5t1ysGk

Bruthal

Another test rig put together, this time to test if a balance wheel is viable, instead of a pendulum.

https://www.youtube.com/watch?v=ufTfx3BqHoA

Wibbs

Your video is set to Private B.

Bruthal

Fixed now I think.

Wibbs

That is very cool.

Bruthal

Yea I didn't think it likely to get bearing points low enough in friction to work. But it's working very well. It would be an interesting setup in a clock.

Deep Thought

That's amazing...

At some point you gotta start selling these things...please !

Bruthal

Deep Thought wrote: »

At some point you gotta start selling these things...please !

Its never the intention, more experimenting and doing it as a passtime, but eventually I will have to probably move one or two on.

Thirdfox

Bruthal wrote: »

Its never the intention, more experimenting and doing it as a passtime, but eventually I will have to probably move one or two on.

I'm sure a lot of us are interested if you're offering! My landing is looking rather bare right now

donegal.

would it be possible to sell these flat pack, ikea style?

Bruthal

donegal. wrote: »

would it be possible to sell these flat pack, ikea style?

It would if I did a bolt together frame, which is what I am drawing right this minute for this balance wheel setup.

For it to work as a flat pack setup without having to build and test first, would want a laser cutter really.

Bruthal

Continued on the balance wheel idea a bit, after leaving it for a while. Still a bit to be done with it, but its running.

https://www.youtube.com/watch?v=RAeTnBEasME

Bruthal

Eventually got around to some progress on the balance wheel mechanism. Near enough done now. A few finishing touches at some stage. I was surprised how well the balance wheel works, as it is easier to get a pendulum swinging with almost no friction at its pivot point.

Click image below and the video is at the bottom of the page, with photos of some of the design and build progress near the top.

Bruthal

Its still going anyway. A video from half hour ago.

https://www.youtube.com/watch?v=0MnzU_sPX1E

Wibbs

I adore the grasshopper escapement. Though it can have a tendency to run away when being wound IIRC and I can't see it ever being made to work in a watch any time soon, it's damned near frictionless and is the most elegant escapement ever IMHO. Mesmerising to watch.

Bruthal

Wibbs wrote: »

I adore the grasshopper escapement. Though it can have a tendency to run away when being wound IIRC and I can't see it ever being made to work in a watch any time soon, it's damned near frictionless and is the most elegant escapement ever IMHO. Mesmerising to watch.

Yes I love them myself. I modified the clock I have in the hall (post #16) to a grasshopper earlier this year as well. They are very elegant, and a lot quieter than the graham ones. Fascinating to watch them.

They can indeed free run if not careful on winding, so the pendulum can be held to one side during winding, although the spring powered ones such as the balance wheel one there, can be wound without the movement being stopped, as the spring still keeps the driving power on.

The other remontoire one I have in the living room can also be wound unaffected (post#84), once its wound before the dropping wheel driving the escape wheel gets to the bottom. That one shares a lot of the same parts with the balance wheel one, same movement in general.

eljono

Bruthal wrote: »

Its still going anyway. A video from half hour ago.

https://www.youtube.com/watch?v=0MnzU_sPX1E

That is a thing of beauty, fantastic job!

Bruthal.

An interesting addition to the clock making shed

https://www.youtube.com/watch?v=-IzTjh6rTcQ