Headstock Play?

[bandaidmd01]

Getting to know my way arround my 12" atlas craftsman lathe and while checking my travel indicators against a dial indicator i checked my headstock i decided to check some other things. Just by pulling on my 6"chuck i can deflect the headstock
.0035 . Mine is a timken model i made sure the preload nut was tight and there no noticable end play, is this a normal amount ?

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[wa5cab]

Bandaid,

.0035" sounds excessive. Pull the chuck, indicate on the spindle shoulder, and using a 1/2" dia. rod inserted through the spindle to pull with, repeat the test.

 

[Mondo]

Is the headstock deflecting relative to the ways?
Or is the spindle deflecting relative to the headstock?

Put the indicator on a magnetic mount, mount the mag on the headstock, repeat the test by lifting on the chuck. Remove the chuck and lift up on the end of the spindle.

Spiral_Chips

 

[bandaidmd01]

I had the magnetic mount on the way and altho i "assume" it was all in the spindle i guess the whole head could have moved. I will check that next time im in the shop.

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