Engines > From Plans
Bar-stock "Mary"
joe d:
Well, it's been quite a while since I've posted a project. With a fair amount of shop time available these days I decided to get going on Tubal Cain's MARY,
with the additional challenge of doing it all from bar stock. The only things I've bought in for the project are some scale nuts, so far everything else has come from stock in hand.
I have changed all the fasteners & threads to UNC or UNF, much simpler than sourcing a bunch of BA stuff here in Canada.
Started at the beginning of July, so will post retrospective stuff until I catch up to present... so don't go thinking that I work at the speed of a Lombard & Man Wagon builder :ROFL:
Will be back with some photos as soon as I figure out how to insert them from coppermine...
Cheers, Joe
joe d:
Hmmm... picture attached after all, not at all sure how I did that. It was the first bit I started with, turned an off-centre chucking spigot for the cylinder.
Joe
Ramon Wilson:
Hello Joe
It's good to see someone tackling this rather attractive beam engine. I've long had thoughts to do similar but at a third bigger - Mary's big sister! - but though the drawings (in TC's book) are now annotated as such I've never actually got round to it.
I have another project to begin shortly so shall enjoy watching yours progress instead.
I'm not sure if memory serves correct but many (and I do mean many!) years ago I recall buying an American(?) publication somewhere on my travels. Not sure of the exact name (it was something like 'Popular Mechanics') but I do remember it was of horizontal format and quite thick with many varying and interesting hobby projects inside.
There was a beam engine project included and I'm pretty sure it was 'Mary' - this would be long long before I became aware of it over here in the UK.
Just a memory but wish I still had the magazine
Good luck with your engine :ThumbsUp:
Tug
joe d:
Tug: Thanks for looking in. I've much enjoyed following various of your projects here.
Going along: Used the chucking spigot to hold the work and bore the cylinder,
then turned a mandrel and mounted it on the mill with the dividing head and commenced to mill away everything that didn't look like a cylinder.
The rough stock had just enough meat to allow for the platform that the valve chest mounts on.
Lots of round-n-round & back & forth but came out OK.
Joe
Bear:
Subscribed. I am also interested in the identity of your lathe, and is that a Taig mill?
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