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I'd really like to get this lathe back running soon so I suppose I'll just run it as is. Wouldn't be too big of a deal to pull the spindle again later if ever needed. :/ -J.Andrew

Mcostello, Oops you're correct. Feeding not threading. Thanks. -J.Andrew

Sorry seem to have bungled the photos a bit. -J.Andrew

Hello all, I picked up a South Bend 13 lathe a few months ago locally. I've been looking for one for quite a while now. I'd like to think that this is the last lathe I'll ever need to buy (though my wife doesn't believe that). Here's a couple picture on the trailer and of a creative method...

All, I like that last picture best. On the end of that engine you can clearly see the Stephenson's Link for changing direction (kinda shaped like a banana). Very cool! -J.Andrew

Thanks all for the input. I'm probably going to attempt without a tap. The only tap in that pitch I can find is $95 used on ebay. No sign of long taps either. For now I cleaned everything and re-installed the nut with a slightly offset bushing on the tail end of the leadscrew. It...

Thanks bb218. I guess I will consider buying that $95 tap. The thread depth for this nut would be 0.074". That's quite a bit of rubbing for a 2.25" deep hole... Did you use brass or bronze? And which alloy? -J.Andrew

Crankshafter, Thanks a bunch for the very interesting link! I don't think it will work for this application because the material between the flat mounting surface and the bore is way too thin to be made of plastic. I will be filing this method away for later use though on other leadscrew...

Goldflash, Thanks but unfortunately nobody makes a nut with a large enough OD to allow for milling down the bottom alignment boss. Here's a quick model of the nut since I don't have it here to take a photo: No commercially made nuts have enough meat on them to mate up. Also not enough...

HMEM, I had to stop working on my first IC engine and tear down my Diamond horizontal mill's table. The leadscrew nut for the y axis is shot. There's no chance of me finding a replacement anywhere as it has an odd outside shape so I was going to go ahead with turning one myself (using the...

Ah I see. That makes sense too with 2 flute end mills having more room for chip clearance. Thanks JasonB and Swifty. -J.Andrew

That last photo is pretty incredible. Anybody know what the name or model is for that engine? I know for certain it was for shipboard use as there's many other photos relating the ships to the engines.

HMEM, A coworker of mine happened upon a stash of incredible glass plate slide photos from the early 1900's at Bath Ironworks in Maine. Another coworker of mine was able to scan them to incredible resolution. I doubt you'll see these photos anywhere else in the world. -J.Andrew

Hello, I had some time early this morning to give it another try. I tried running 0.050" depth of cut and cranking at about 13 ipm. The bit survived the cut well enough but it sounded a more like a wood router than a mill. It did throw off a spark as it broke through the exiting end but I've...

HMEM, I'm milling quite a few 1/4" wide grooves in carbon steel to a depth of .315". I'm using a nice carbide end mill and taking passes of .020" at a time. I've been running the spindle at 1200 rpm but the part is getting pretty hot by the end of milling one groove. I don't have a coolant...

I got the milling head trammed in fairly easily and made some clamps for my new toolmakers vise: The protractor for the machine's nod was a full 10 degrees off and seems to be seized to it's retaining screw. Not a big deal I suppose but something for me to fiddle with one day. The...

Hello, Just wanted to share some pics of my recently acquired Rusnok milling head. I've had the Diamond horizontal mill for a while now and was able to pair it up with the Rusnok I happened across on Craigslist. Here's the photos: This leaves me unable to make any more...

BB218, Nerdz, I'd be hesitant to try and sell it as it's not very pure. I spent three days shoveling the stuff out of the bottom of a very large steam boiler on hands and knees with a foxtail broom and 5 gallon buckets. The rust itself rains down off of the boiler tubes. In my toils I swept up...

HMEM, I now have at my disposal 3 dumpsters full of rust ranging from small chips to dust particle size. I'm wondering if anyone has any creative uses for it? From what I understand it could be smelted back to useable iron but that's a bit beyond the scope of my abilities. I have a manager...

Mr. Fellows, Brilliant! Thanks for posting this. I'm currently working the exact same problem but in reverse...putting a vertical milling head on my horizontal mill. I was wondering what that bevel gear ratio does to your milling spindle speeds...? It looks like the gear set is 3.1:1...