MadModder

The Shop => Tools => Topic started by: ozzie46 on October 06, 2009, 01:52:17 PM

Title: ADJUSTING HEAD STOCK
Post by: ozzie46 on October 06, 2009, 01:52:17 PM


  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

 
Title: Re: ADJUSTING HEAD STOCK
Post by: sbwhart on October 06, 2009, 02:04:15 PM
Ron

0.002" at 15 " is very good.

Stew
Title: Re: ADJUSTING HEAD STOCK
Post by: ozzie46 on October 06, 2009, 03:51:17 PM


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

    Ron
Title: Re: ADJUSTING HEAD STOCK
Post by: CrewCab on October 06, 2009, 05:20:10 PM
  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  :thumbup:

CC
Title: Re: ADJUSTING HEAD STOCK
Post by: bogstandard on October 06, 2009, 05:30:03 PM
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
Title: Re: ADJUSTING HEAD STOCK
Post by: ozzie46 on October 06, 2009, 08:37:07 PM
 

  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