Search found 47 matches
- Wed Aug 09, 2017 10:04 pm
- Forum: Build Log
- Topic: 2-1/2", 65 ton New Mexico Lumber Co Shay (Lima C/N 1762)
- Replies: 69
- Views: 68228
Re: 2-1/2", 65 ton New Mexico Lumber Co Shay (Lima C/N 1762)
Harold, Yes I do have a mill. Excellent suggestion. I was hoping to be able to locate all the holes at once on the lathe, then open them to finish on the mill (and avoid doing 6 repetitions of the operation). [/quote] Get creative and it won't be a big deal. Consider making a setup with several para...
- Wed Aug 09, 2017 12:03 am
- Forum: Build Log
- Topic: 2-1/2", 65 ton New Mexico Lumber Co Shay (Lima C/N 1762)
- Replies: 69
- Views: 68228
Re: 2-1/2", 65 ton New Mexico Lumber Co Shay (Lima C/N 1762)
Question for the group: I'm turning the eccentrics, and wondering how folks have done this. I've turned the major diameter, then cut and finished the diameter to accommodate the straps. I used my 0.125 cut off tool To do this. I've also laid out my slots to cut off each eccentric (3 on this billet i...
- Mon May 15, 2017 11:29 pm
- Forum: Build Log
- Topic: 2-1/2", 65 ton New Mexico Lumber Co Shay (Lima C/N 1762)
- Replies: 69
- Views: 68228
Re: 2-1/2", 65 ton New Mexico Lumber Co Shay (Lima C/N 1762)
My cylinder castings arrived from Cattail Foundry this afternoon. Fortunately for my postal carrier, this is the last of the castings I need for my project (I think). They came out very nicely; kudos again to Emanuel King and his crew at the foundry. I had 4 made: there is a long lead time on these,...
- Mon Apr 24, 2017 10:38 pm
- Forum: Live Steam
- Topic: Material for crosshead guides
- Replies: 11
- Views: 9738
Re: Material for crosshead guides
Brian, My cylinder frame isn't cast; Its built up steel (old style of Shay cylinder/crosshead that was cast as a unit) I couldn't think of a practical way to make it a casting, so I made it up out of several parts and TIG welded together. I had to improvise a bit, as I didn't want to make the crossh...
- Mon Apr 24, 2017 8:32 pm
- Forum: Build Log
- Topic: 2-1/2", 65 ton New Mexico Lumber Co Shay (Lima C/N 1762)
- Replies: 69
- Views: 68228
Re: 2-1/2", 65 ton New Mexico Lumber Co Shay (Lima C/N 1762)
Crossheads.jpg Finished the crossheads today. Making the deep pocket was tedious to say the least. I had the covers laser cut as a convenience (and it was 0.125" sheet like the crosshead guide parts, and it wasn't any extra). I tapped the piston rod hole 1/2" NF so i could make any as nee...
- Thu Apr 20, 2017 10:01 pm
- Forum: Live Steam
- Topic: Material for crosshead guides
- Replies: 11
- Views: 9738
Re: Material for crosshead guides
I don't have the drawings or material specs for the guides. Looking at the photo, I was think that there were two components as you suggested; some sort of bracket assembly that bolted to the large casting, and the material that was the actual guide bolted into that. I'm thinking it was babbit, but ...
- Thu Apr 20, 2017 7:55 am
- Forum: Live Steam
- Topic: Material for crosshead guides
- Replies: 11
- Views: 9738
Re: Material for crosshead guides
It makes sense. I didn't think of the lateral forces from the angulation of the connecting rod on the guides.
- Wed Apr 19, 2017 8:59 pm
- Forum: Live Steam
- Topic: Material for crosshead guides
- Replies: 11
- Views: 9738
Re: Material for crosshead guides
Thank you, I think it would be false economy to use brass for this application. I really only want to make the parts once!
- Wed Apr 19, 2017 6:03 pm
- Forum: Live Steam
- Topic: Material for crosshead guides
- Replies: 11
- Views: 9738
Material for crosshead guides
I was wondering if anyone had any thoughts on material to use for the crosshead guides on my Shay project. The crossheads ride in a grooved guide on the prototype (see the attached photo). I'm planning on milling them out of some brass stock I have on hand, and since there is no weight borne by them...
- Mon Apr 17, 2017 7:50 pm
- Forum: Build Log
- Topic: 2-1/2", 65 ton New Mexico Lumber Co Shay (Lima C/N 1762)
- Replies: 69
- Views: 68228
Re: 2-1/2", 65 ton New Mexico Lumber Co Shay (Lima C/N 1762)
Got the crosshead/lower cylinder head assemblies welded up today. The prototype used a large casting for this, but I couldn't cipher how to duplicate it. I had the bottom and two side pieces cut with a laser so they would all be identical, and cut the round piece from a piece of 2-12" OD, .125 ...
- Sat Mar 25, 2017 8:26 pm
- Forum: Build Log
- Topic: 2-1/2", 65 ton New Mexico Lumber Co Shay (Lima C/N 1762)
- Replies: 69
- Views: 68228
Re: 2-1/2", 65 ton New Mexico Lumber Co Shay (Lima C/N 1762)
Cutting cylinder heads from a piece of 3-1/2" diameter stock today on my cheap< shameless (and free) horizontal band saw. I picked the metal up at my local scrap yard ($0.50/lb for steel), which ends up being less than a dollar a piece. Its an impressive Woodruff key; some sort of old shaft, I'...
- Sun Mar 19, 2017 1:40 pm
- Forum: Build Log
- Topic: 2-1/2", 65 ton New Mexico Lumber Co Shay (Lima C/N 1762)
- Replies: 69
- Views: 68228
Re: 2-1/2", 65 ton New Mexico Lumber Co Shay (Lima C/N 1762)
Completed the cylinder pattern today. Came out pretty well Here's a few pictures, and off to the foundry tomorrow.