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Chuck that is great! In 5 min. reading your post I learned several great tricks. I inherited an old (1944!) Craftsman 3" lathe from my grandfather (really a toy!) that I've used to make a few things but never cut threads. You make it seem doable. Thanks! Hope it's ok if I ask a couple questions? How do you pick the steel for bolts? You specify O8 tool steel. Looking up tool steel gives a myriad of info yet it seems like we would only need 4 types: mild steel, tough tool steel for bolts and wear parts, hard steel for cutting and spring steel for springs? Is your machinist's bible the reference?I also need to figure out how to sharpen the tool bits better and centering the work in the headstock easier...Thanks again!Shawn
Sure thing, Shawn.. although I'd be surprised if that small a lathe has change gears for thread chasing. ...There's a little learning curve..
Thanks Chuck! It's encouraging to see you do it so nicely.The little lathe does have a power lead screw and all the cogs to set feed rates. There's some wear in the split collar that catches the lead screw and more in the head stock bushings which may be the biggest hurdle other than that learning curve! Thanks again.Shawn
You can turn a piece of round stock into a square block on a lathe. I've stumped some instructors with that, I had to have it explained to me, by my grandfather who was born in 1901
Chuck, you may, tongue in cheek, refer to your Chinese lathe as a toy and indeed it may well be when compared to tool-room machinery in a production environment. But speaking as a non-machinist my Chinese lathe has been worth every penny that I paid for it. It's ideal for knocking up odd studs, bushes, spacers and collars, for drilling, boring and threading and many other tasks.Like I said, I'm no machinist and it'll take me a lot longer to do things than a pro but I reckon it's been a great addition to my garage.
I'm kind of surprised the LeBlond didn't have metric capability. Our shop has been working on rebuilding or retrofitting big lathes for years. One in our shop right now is a deep hole drill capable of drilling a 12 3/8 diameter hole 65 FEET deep. This machine has a 6 foot swing and is over 200 feet long. Among other things this forge makes is locomotive and ship crankshafts and the Mother Of Of All Bombs.
I'm kind of surprised the LeBlond didn't have metric capability. .......
ENGAGING OLD MEMMORY CELLS ..... CLUNKDon't you need a 127 tooth change wheel to screw cut metric on an imperial lathe
Wahoo my long term memory is OK. That's good news even if "according to my wife" I can't remember anythingStrange how its always stuff like the 3rd iteration of the 4th colour we might be painting the bathroom in 18 months time I forget
I did my apprenticeship in a railway workshop, we had a bunch of old machinery taken from Germany at the end of WWII I was always looking at machinery trying to figure out how it worked.We had a large vertical lathe that could swing about 10 feet.Chuck, explain how you always start the threads in the right spot for 2nd and 3rd cut etc.
So. Installed the studs.. this is *much* better than taking a chance of deforming the threads by double nutting, etc. The tool will grip the stud below the threads. I need a set, obviously. I love tools..
They don't sell any of those sissy metric O rings in Elwood, Indiana.. we're 'Mericans here. McMaster Carr has them. Got 100 M8s and 100 M10s for about the price of special ordering enough to do the job. Anyone need O rings?
Will it make rated power now, Chuckie ?
I need a set too. Brand name of the ones you used?
Ya know, Charlie.. I brought the Kid up right. I told him to always buy the best tools he could afford. When he was down working on the Spot, he looked at a puller I had. It was Buffalo. He gave me the *look*, and I told him at that time that was the best I could afford. These are Cornwell. Not Snap On or Matco.. but look perfectly adequate for not every day use to me.
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