Chewed up live centers

This is a common problem. Fortunately, it also easily fixed. It is also why most experienced guys have a honking big 60 degree countersink somewhere in their tool chest. Trust me; you are not the first to experience this. ;)
 
mikey said:
This is a common problem. Fortunately, it also easily fixed. It is also why most experienced guys have a honking big 60 degree countersink somewhere in their tool chest. Trust me; you are not the first to experience this. ;)
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How do i fix
 
Use a 60 degree countersink with an OD large enough to cut a taper on the inside of your part, then engage the live center and you're good to go. As for the damage already done, ignore it unless something sticks up above the surface. You can remove that with a diamond file or stone.
 
mikey said:
Use a 60 degree countersink with an OD large enough to cut a taper on the inside of your part, then engage the live center and you're good to go. As for the damage already done, ignore it unless something sticks up above the surface. You can remove that with a diamond file or stone.
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Thank you... But why have i never had to do it the hundreds before?
 
sasnecro said:
Thank you... But why have i never had to do it the hundreds before?
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Have you checked to see if the headstock is aligned with the ways and that your tailstock is aligned with the headstock? New lathe, right? Did you check these things? I still think you need to countersink the work but it is possible that this could be made worse if something is out of alignment.
 
mikey said:
Have you checked to see if the headstock is aligned with the ways and that your tailstock is aligned with the headstock? New lathe, right? Did you check these things? I still think you need to countersink the work but it is possible that this could be made worse if something is out of alignment.
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What if I cut a new surface on the chuck teeth?
 
Not a good idea. Chuck a piece of drill rod, sticking out no more than 8 times the diameter, with the lathe not spinning use your indicator to verify that the work is parallel the movement of the tool.

Put the tip of the indicator on the side toward you, where the tool would cut, and move the saddle sideways, watching the indicator. It should read zero movement.
 
Learn how to align tail stock and check it out.

They never come correct and if you have not done this then make a spool and get to it.

We have posted simple detailed instructions.

2 coller test is another name for it.

Sent from my SAMSUNG-SM-G930A using Tapatalk
 
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