ADJUSTING HEAD STOCK

[ozzie46]

  I am adjusting my new Grizzly 10 x 22 and have a succeeded in getting the vertical and horizontal spindle axis within .002 at 15 in. from spindle.

  I put a .625 bar that is from a discarded printer and machined to very fine tolerances in a collet mounted in the spindle. I then mounted 2 dial indicators on the cross slide and compound slide and zeroed them at the spindle chuck, then ran it out to 15 in.s and got it to within .002 thou. both vertical and horizontaly.

  My question is, is this ok or should I try to get it closer?   Or am I just chasing my tail trying to get it closer?
 

   Ron

 

[sbwhart]

Ron

0.002" at 15 " is very good.

Stew

[ozzie46]

  Thanks Stew, I guess I'll button it up and do a test cut.

    Ron

[CrewCab]

  My question is, is this ok or should I try to get it closer?   Or am I just chasing my tail trying to get it closer? 

That's bloody good Ron, most folk would happily settle for that ............ but I suspect most settle for less  ............. well done 

CC

[bogstandard]

Ron,

When most standard tolerances are + or - 0.002" say on a diameter or fit, your 0.00013" per inch of length is almost negligible, and nothing to worry about under normal machining in your shop. You could almost say that the force of gravity or a slight breeze could have been causing the runout.

Bogs

[ozzie46]

 

  CC, Bogs, Thanks for your input. Please know that it is highly valued.

   After I test the tailstock to see if it is centered I'll do a test cut and let you know the results.


  Ron