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| First Lathe Project |
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| ddkhalaji:
Thank you for all your responses! I've had a lot of success tonight! Stuart it is EN1A mild steel, I wish I could say it was (GGQ), but it was me and my cutter in the end. David, Anzaniste and Matthew, thanks for sawing advice, I will definitely take it on board next time I'm cutting through some rod. David, that is how I was doing the facing, as it explained it in the book..I think I may have chipped the cutter early on, and produced very bad results after that.. Here is a before shot.. After I finished tool and gave a small radius..its smooth to touch |
| Jonny:
Never seen an HSS cutter like that before and the source of the problem. Its got no relief apart from top edge you have to grind them up which will only last a few times. Surprised it didn't leave chaff marks even on a robust machine. Have a look on how to grind a tool up. Purely as a means of seeing whether it cuts better swing round the tool about 10 degrees right and power feed backwards towards tail stock. |
| Meldonmech:
Hi, Glad to see you are now getting the smooth finish on your facing. Help is always available on this forum, which has a vast communal knowledge waiting to be passed on. Cheers David |
| vtsteam:
I agree with all the comments so far about hacksawing. I also wonder about why all that paint was missing on the blade for one cut -- unless it was a used blade. If so, try a new sharp one, and for thick stock like that, a relatively coarse tooth. Bimetal blades are nice, too. Spent several years hacksawing before I got a bandsaw. Make sure you have as much tension as you can physically manage on the blade. Now, I hesitate to say this since no one else has and maybe some feel there is a reason not to, but I often sawed round stock in the the lathe while it was turning. You should move the blade back and forth so it doesn't wear the teeth in one spot while doing this, like slow motion sawing, and not apply much pressure. And not all the way through, of course, so you don't have work leaving the lathe, but to within about 1/4" of center. Then I turned the motor off and sawed the rest of the way by hand. Speed should be slow, naturally. Parting off is also good, but learning how to saw seems primary. |
| krv3000:
hi and you is off to a good start well i have cut 100mm bar by hand noproblem :nrocks: |
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