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Files Ordered

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vtsteam:
I was wondering what that onion shaped ball at the left end of the leadscrew was. I now think it is a decorative captsan to take removable tommy bars, and it tightens the pointed pivot that serves as a bearing for the leadscrew. Most of the bearings thoughout the machine seem to be pointed pivots, with a locking lever screw (often brass and with curved hande).

I love the big thumbscrews and wingnut. A hundred times handier than the cheap stampings available today. And better looking, too.  :thumbup: :bow:

Arbalist:
I'd love to see it in operation, if only on some soft steel.

RobWilson:

--- Quote from: Arbalist on June 04, 2015, 08:50:26 AM ---This French one is C 1700 apparently.



--- End quote ---


Where did you fined that photos ?  dont think that machine is from the  1700 ,could be mistaken


Rob

RobWilson:
Steve , the photo of the machine I have shown is from 1700 - 1800  is the best I can get from the museum site , it was added to their collection in 1849 .

Materials : Steel , Wood and Iron  ,,,,,,,,,,, weight 58Kg .

Looking through a Leonardo da Vinci book I have there is a drawing of a file cutting machine he designed in 1480 ,,,,



,,,,, and now  I remember seeing the actual LdV drawing in Venice a few years back . 

I can see what I can find about the ye oldie file making process  :coffee:


Rob


vtsteam:
Wow, Rob, that's going back some!

Leonardo was at times more of an armchair engineer than a buider, amazing though he was in all of his accomplishments.
That looks to be at leaast a 4 foot long file, by the scale of the other parts, The base weighed tons if stone, and I doubt it was solid wood, the rest is pretty rickety looking,

The weight, which acts like those on a clock to turn the spindle, looks way too small for lifting the hammer on the long lever arm it has, compared to the very small spindle -- I'm not sure he's got a good grasp of mechanical advantage here! Those sawhorse-like legs better be bolted down or the whole near end will lift up. That leadscrew is pretty massive for even a 4 foot long file -- a bit overbuilt compared to his stocks.

I'm thinking he'll probably need a plan B after trials  :lol: :lol: :lol: :lol: :lol: :lol:

(don'we all!  :lol:)

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