Sounds interesting. I'd potentially lime to get involved yes.
On Light Night Leeds Uni had a display from their new (and largely unsorted) Science museum. One of the prime exhibits was a stunningly filthy 19th century painting. With the use of bright torches you could make out most of it and it turned out to be the design of a perpetual motion machine, with assorted cogs, pistons and suchlike that operated a fountain, a musical instrument of some kind and iirc something else slightly more useful. The uni haven't photographed it or cleaned it up, so don't really know how the machine is supposed to work, but they sounded very keen to know more about it.
Anyone interested, if we can get useable images of it, in helping make a model of it for the museum?
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If anyone has access to a converted DSLR these are very useful for this type of imaging.
Nav might have something useful camera wise. He doesn't read the emails often. If anyone is on IRC now would you like to poke him in the direction of this?
Joe
Nav's equiptment isn't modified but I'll make sure he reads the thread. We've got a handful of togs who turn up at hackspace, so hopefully one of the others might see this too...
I've just emailed Mike Finn, the director of the museum, to see if he's ok with us doing this and to let us know when would be a good time to go and photograph the painting.
Do we have a better way of imaging it than illuminating sections (or the whole thing if they let me use my spots) and then using Photoshop to enhance it?
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I'm still very confused about the fly wheel - lever mechanism though. Would it be possible to get a clearer shot of the '&JI'/bucket/lever/rod arrangement?
Maybe I'll tell you maybe I won't...
Anyways. The kunckle dusters actually hold the rods in position until they interact with the top rack shlef, letting the drop only at the top position. This explains the semi-teethed wheels and interaction with spring.
Yes I'm interested. Meet at open night or is another night better?
Yes I can make Tuesday too.
Nic
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Sounds reasonable but before we scale it down is it worth identifying the largest and smallest components and estimate to what extreams of scale we could create them?
So if there is an already tiny fiddly component then let's not make it impossibly small to recreate.
Have a quick chat about that tonight and get scale pinned down?
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On Monday, December 7, 2015 at 12:57:47 PM UTC, DrBwts wrote:I'm still very confused about the fly wheel - lever mechanism though. Would it be possible to get a clearer shot of the '&JI'/bucket/lever/rod arrangement?
That's why I'm trying to get hold of a larger version of the picture on the BBC site as my photos show very little of the bottom right-hand corner. I went to the gallery today but they couldn't find any record of having that image, but put me on to the archivist for the university's art collection who will know where to find it apparently. I'll update when I get more news.
The text for the fly wheel mentions "When the balance weight W leaves F it will raise &: whence the levers YZ will raise the weight from J to I." which implies to me that it is gravity-driven. Hopefully a clearer image will explain it.
Where and when is the exhibition?