Atlas lathe 10d restoration

[Cobrage401]

Something correct:

Well I must have done something correct for now after doing the above ways adjustments I turned the same peace of aluminum with the below results...

1) Adjusted the stock in the 4 jaw chuck for around..005"

2) removed maybe. 04" of aluminum. Travel distance is approximately 2.5"

3) Runout maybe at .002"

4) Taper is basically 0 were before I had .05" taper within 2.5" of travel.

I will have to get a longer stock probably 12" in length and try again however I think this is a good start.

 

[hman]

Help!!!

Ok I'm not sure I'm understanding this totally...

Below photos shows the level indicating pretty good now after some ugly looking shims under the lathe bolts lol... now when I move the level as shown below to two places in the center of the lathe its off. This lathe has no adjustments to the center ways unless maybe some jacks were installed.

My question is... is this normal? Its almost a futile mission if you can't make the level true along the entire ways no?

That's a real puzzler! I'd almost be willing to suspect that the bed, originally twisted, did not untwist evenly when you leveled the two ends. But what to do about it???

Is your shop air conditioned/heated? If so, maybe you could turn off the climate control for a week or so, let the air inside warm up and cool for a week or two, which might let the cast iron of the bed "relax" a bit with temperature cycling. Of course, there probably isn't that large a temperature swing in Florida. But that's the best I can come up with right now.

 

[Cobrage401]

That's a real puzzler! I'd almost be willing to suspect that the bed, originally twisted, did not untwist evenly when you leveled the two ends. But what to do about it???

Is your shop air conditioned/heated? If so, maybe you could turn off the climate control for a week or so, let the air inside warm up and cool for a week or two, which might let the cast iron of the bed "relax" a bit with temperature cycling. Of course, there probably isn't that large a temperature swing in Florida. But that's the best I can come up with right now.

Thanks!!! Not a bad idea however it's not climate controlled. Will have to wait until I get a 12" bar and check for taper again however I have made a significant improvement.

Interesting that I don't recall anyone checking or mentioning the center of the ways when regarding twist on YouTube using the level method. Only place the level at the headstock and tailstock. Maybe the assumption is the center should not have twist if the ends have been corrected.

Dave

 

[hman]

Yes. You're the first one I've ever heard of that checked more than the end points.

 

[Cobrage401]

Well I guess my mother was correct when she said I was different lol lol

Dave

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[Cobrage401]

Headstock alignment:

Ok a change in planning.. I stumbled across this idea on using your coaxial indicator placed in your 3 jaw chuck or collet. I placed my indicator in a 3 jaw as I don't have a collet setup for the lathe yet.

Indicator is showing around .001"

Dave

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