rear chuck ????

JBCustomCues

JBCustomCues

AzB Silver Member
Silver Member
So I got my rear chuck arbor made and I was just wondering what you folks consider an acceptable measure of run out for the rear chuck is?? I mean mine runs at .002 run out and if I fiddle with it I can get a little better.. Am I being too picky or is .002 good enough??
 
JBCustomCues said:
So I got my rear chuck arbor made and I was just wondering what you folks consider an acceptable measure of run out for the rear chuck is?? I mean mine runs at .002 run out and if I fiddle with it I can get a little better.. Am I being too picky or is .002 good enough??
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I don't know what a rear chuck arbor is?
 
If you consistantly have 0.002" run out you can get it perfect with a sliver of gas pump receipt paper on the low side. You also have to consider that the chuck is only off by 0.001" That is pretty f'n close for a chuck on the back of the lathe. With 0.002" on the back chuck which would be about "this is a guess" 15 inches back on the shaft you will have close to double that at the end. Put 2 pieces together with 0.004" at the ends and you will have 0.016 in the middle. Just a thought. 0.016" is about the thickness of 5 sheets of 20# copy paper. The cue will flex that much. Just depends on how picky you are. 0.016 is a lot in the middle. Just IMHO of course.
Joe, what chuck did you use??
john
 
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Err, how bout this cheapo at Fleabay?
 

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I made one like that

JoeyInCali said:
Err, how bout this cheapo at Fleabay?
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Made one of those. Took to long to get it right all the time. chuck is quick and dirty.
 
JoeyInCali said:
Do you really have to have zero?
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Only you can decide.

Same question....different words.......

Do you really want to just be average?




<~~~would fiddle with until it is dead nutts.................
 
BarenbruggeCues said:
Only you can decide.

Same question....different words.......

Do you really want to just be average?




<~~~would fiddle with until it is dead nutts.................
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At the rear?
I like the cue to be zero in the middle. Can't indicate the middle of the butt from the buttcap.
 
JoeyInCali said:
At the rear?
I like the cue to be zero in the middle. Can't indicate the middle of the butt from the buttcap.
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If the butt were straight and it zeroed out on both ends....theoretically it should be zero in the middle.


<~~~theoretically........................
 
My indicator jumps on the grain anyway. Can never tell exactly where it is.

Likewise it could be zero in the middle and out on both ends.


"<~~~theoretically........................"
 
Well, I'm sol b/c I have a Logan lathe.
Gotta use the steady rest and lathe dog.
Indicate middle and move the collet in the chuck until middle zero.
Indicate collar if needed.
Last pin I installed had 2 tenths runout at the pilot.

Now, if I can get Feeler lathe ...
 
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DaveK said:
Good point :)

Dave
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Janes sold them that lathe.
Did you ever see the video?
I have it somewhere but cannot find it. :rolleyes:
Turret and live threader for the UNI-LOC quick release pin.
Blew me away. Center drill, another drill then another one .
Boom, live threader going in. Baam, quick-release pin.
Same machine was used to pin Preds I believe.
 
RocketQ said:
My indicator jumps on the grain anyway.
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Two things I have done and too help with this. Switched the end of my indicator to a flat head instead of the rounded one. And I will just touch the wood while it lathe is spinning with some 800 grit for about just .6 of a second to knock any fuzzy off before putting it to the dial.


<~~~with wood sometimes you have no choice but to just take an average.....
 
BarenbruggeCues said:
Two things I have done and too help with this. Switched the end of my indicator to a flat head instead of the rounded one. And I will just touch the wood while it lathe is spinning with some 800 grit for about just .6 of a second to knock any fuzzy off before putting it to the dial.


<~~~with wood sometimes you have no choice but to just take an average.....
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DAMN! Free tip here instead of bickering and whining?
What's next? Free root beer?
 

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JoeyInCali said:
Janes sold them that lathe.
Did you ever see the video?
I have it somewhere but cannot find it. :rolleyes:
Turret and live threader for the UNI-LOC quick release pin.
Blew me away. Center drill, another drill then another one .
Boom, live threader going in. Baam, quick-release pin.
Same machine was used to pin Preds I believe.
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Yes, I saw the video, way cool operation.

About 5 years ago I was perhaps 20 minutes late on a locally advertised Hardinge 2nd op turret lathe :mad: ... the guy wanted $350 :eek: At that time $350 Canadian would have been about $250 US :eek: :eek: I'm not sure I'll ever get over that near miss.

Dave
 
JoeyInCali said:
DAMN! Free tip here instead of bickering and whining?
What's next? Free root beer?
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There ain't no free lunch..............

What the hell you worried about with that behind the headstock set-up?



<~~~free rootbeer?..............let's not get greedy.............
 
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