Live center

[chatter chatter cut cut]

inspired by joe pie i made this one from things around the shop and 2 bearings from ibt. the bearings are 3/4 in od and 1/4 id the center is removable with some effort.

 

[Beckerkumm]

Slick. How much runout? Dave

 

[RJSakowski]

Here is one that I made some fifteen years ago for small workpieces. The bearings were salvaged from old computer hard drives and presumably decent quality.

 

[chatter chatter cut cut]

Slick. How much runout? Dave

i could not detect any runout with a dial mike . pretty hard to spin that little pointer with clumsy fingers.

 

[Beckerkumm]

If you put a bar in the lathe using the live center you can test it under some load which is what tells you how it will run. Dave