Tailstock arrived - pictures

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Jgrden

Jgrden

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Joined
Mar 27, 2009
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Location
hOUSTON, Texas
Here are pictures of the receipt and the new tailstock next to my old and used one.

Tailstock 1.jpg

Tailstock 2 Receipt.jpg

Tailstock 3 threads.jpg

Tailstock 4 Bad one.jpg

Now I wonder what cause the threads to breakdown. If there were foreign material in the housing of the tailstock, it could repeat the breakdown. It is as clean as I could get it. Wiped it out with WD-40, turned with a rifle bore brush.
 
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All I can say is WOW. John you wore that puppy out! j/k
Shine a light in the hole to see if you can find anything that would cause that. Since the new one looks anodized you might insert it and crank it all the way in then out to see if there are any marks on it.
 
MLKWoodWorking said:
All I can say is WOW. John you wore that puppy out! j/k
Shine a light in the hole to see if you can find anything that would cause that. Since the new one looks anodized you might insert it and crank it all the way in then out to see if there are any marks on it.
Click to expand...
Aha !!!!! great suggestion. Thank you. :star:
 
nava1uni said:
Glad that you can now get back to turning. Sure ate up those threads.
Click to expand...
It is early in the morning (well for a retired person it is early), breakfast (oatmeal) finished, coffee is brewing, dishes after checking in with IAP and then out to the workshop with my new tail stock. Yesterday I tried to drill 1/4" and it would not move. I had glued the wrong tubes into .30/-6 bullets and now need to drill them back out. Had to quit.
I am wondering if using the lathe as a drill into brass is too much for it? That may be what tore up the threads.
thanks Cindy, you're a bud.
 
Could be a soft alloy, could be just plain old friction .

The metal of the handwheel on my tailstock is rather soft. I wore through one and the replacement developed a notch before I replaced the set screw with a delrin replacement. Since then the wear has been greatly reduced if not eliminated.

My point is these pieces are under stress when we are tightening them down and that may be the issue. Look at what the threads are interlocking with.
 
John when I drill on the lathe, I get the hole basically started by cranking the tail stock into the blank. I will go in about 1/2" and then I will release the tail stock lock and push the complete tail stock forward by hand. If you have to exert a lot of pressure then i would think the bits are a bit dull. It is hard to get a good feel when drilling on the lathe by cranking the tail stock. It pretty much feels the same no matter what you are drilling. (at least in my experience)
 
I would take a white crayon or some white chalk and make a 1/2" line down the tail stock screw threads, of the new screw. Make sure you get down in the threads real good. Put new screw back tail stock crank it all the way in and out a few times, then take the screw out and see if any of the crayon is completely gone (down to bare steel) if so then your hand crank threads are not lined up right or it could even be the wrong thread. I think if it was from drilling you would have seen your hand crank turning. Are you sure your set screw on the tail stock is in its slot on the tail stock screw shaft?
 
The new tail stock screw is in and operates very smoothly and with out effort. I have decided to use the center rather than the end to spread the wear along the entire body.

thank you Mr. Turner. I am going to keep your thoughts and do this after using it for a couple days just to see where the wear is taking place.
 
Jgrden said:
nava1uni said:
Glad that you can now get back to turning. Sure ate up those threads.
Click to expand...
It is early in the morning (well for a retired person it is early), breakfast (oatmeal) finished, coffee is brewing, dishes after checking in with IAP and then out to the workshop with my new tail stock. Yesterday I tried to drill 1/4" and it would not move. I had glued the wrong tubes into .30/-6 bullets and now need to drill them back out. Had to quit.
I am wondering if using the lathe as a drill into brass is too much for it? That may be what tore up the threads.
thanks Cindy, you're a bud.
Click to expand...

Yeah Jgrden, I think you got the answer to the problem.
I don't recall what lathe you have but, wood-lathes tails stocks are not made for drilling, particularly into hard materials. A few a the better quality wood-lathes would probably accept that type of work better. not because they were made for it but because the quality of the materials and the tolerance in threads and similar are of superior quality and people get away with it.

Something has to wear and in your case the tailstock shaft is (was) softer than the housing and I bet the first few threads of the housing will have some signs of wear, after all it did "grind" completely the old shaft...!:eek:

Any metal lathe would be more suitable for that sort of work and you may have to consider a small one of those for your penturning, it would also open a few other opportunities to you...!

Anyway, one thing is for sure, you certainly do a lot of drilling of that lathe...!!!:wink::biggrin:

I reckon, if you got the shaft replace under warranty, you are a lucky chap...!:wink:

Cheers
George
 
robutacion said:
Jgrden said:
nava1uni said:
Glad that you can now get back to turning. Sure ate up those threads.
Click to expand...
It is early in the morning (well for a retired person it is early), breakfast (oatmeal) finished, coffee is brewing, dishes after checking in with IAP and then out to the workshop with my new tail stock. Yesterday I tried to drill 1/4" and it would not move. I had glued the wrong tubes into .30/-6 bullets and now need to drill them back out. Had to quit.
I am wondering if using the lathe as a drill into brass is too much for it? That may be what tore up the threads.
thanks Cindy, you're a bud.
Click to expand...

Yeah Jgrden, I think you got the answer to the problem.
I don't recall what lathe you have but, wood-lathes tails stocks are not made for drilling, particularly into hard materials. A few a the better quality wood-lathes would probably accept that type of work better. not because they were made for it but because the quality of the materials and the tolerance in threads and similar are of superior quality and people get away with it.

Something has to wear and in your case the tailstock shaft is (was) softer than the housing and I bet the first few threads of the housing will have some signs of wear, after all it did "grind" completely the old shaft...!:eek:

Any metal lathe would be more suitable for that sort of work and you may have to consider a small one of those for your penturning, it would also open a few other opportunities to you...!

Anyway, one thing is for sure, you certainly do a lot of drilling of that lathe...!!!:wink::biggrin:

I reckon, if you got the shaft replace under warranty, you are a lucky chap...!:wink:

Cheers
George
Click to expand...
No warranty, bought the lathe new. I got rid of my drill press thinking the lathe would take its place. The drill press was a huge, humoungus thing that I was glad to let go. Guess I'd better invest in a small metal lathe or another drill press.
Thanks for your "on the mark" advice.
John
 
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