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Hello all!
- Thread starter Opieshuffle
- Start date
Put me on your visit list.
CWs Burlington welcome wagon.
Or any other random travelling CHMW member.
@Dabbler came by for a visit on his last cross-Canada tour. It was an enjoyable afternoon.
That's FANTASTIC!
I had thought very seriously about volunteering you, but thought that would be too much of an imposition. I'm super happy you two guys found a way to make it work!
Not sure how I missed this last month, but welcome!
trlvn
Ultra Member
Probably. But it could be that both the nut and screw are worn and need replacing. Have you seen the Parts List document?
BTW, that screw (M6-36A) and nut (M6-19A) were redesigned early in the life of the 618 models. The "A" on the end of the part number indicates it is revised. I believe they switched from basic V threads to an acme thread profile as the V threads were wearing out too quickly. You'll be able to tell by looking at the parts.
A few years ago, I believe you could still get some parts from Clausing Service (who purchased the Atlas business years ago). Confirm the shipping cost--I got a nasty surprise ordering from them. There is also a guy in Michigan that sells some parts:
Atlas 618 / Craftsman 101 6" Inch Lathe Cross Feed Nut M6-19A - BM Parts Tech
Crossfeed Nut for Craftsman Model 101 and Atlas Model 618, [...]
bmpartstech.com
Let us know how it goes!
Craig
1/8 is a lot for screw and nut wear. I'd examine the screw anchor too. I'm not familiar with that machine. The anchor could be at either end of the screw. Once you know which end it is, you can find it be pushing the table back and forth with your hands with the locks disengaged and watch for the screw itself to move axially.
mickeyf
Super User
Another thing about HSS - you will sharpen it yourself and learn first hand about cutting tool geometry. Pre-made Carbide inserts can be great things, but you really do want to understand what's going on under the hood, as it were. They are also cheaper and can be reground, like sharpening a pencil until they are mere stubs. But that takes years (lifetimes?), rather than a hand full of study hall classes.
1/8 backlash is a lot, but I have worked successfully with machines that were worse, and backlash can be allowed for. If you always crank up to the work, never back from it, you should be OK unless there is more than simple wear induced backlash. As suggested, I'd do some more diagnostics and confirm exactly what's what (disassembly and examination) before just ordering new parts.