Hello,
I'm probably overthinking this, but I want to be very sure before I set up the mill and cut the saddle slide ways for Rulon application. The machine is a 1941 Pratt Whitney Model C 14x54 toolroom lathe. The bed is scraped and now it's time to prep for Rulon to bring the apron up to its original position.
I have the apron lifted up into its nominal position by sweeping the feed reverse rod from the fixed tailstock end fixture. The top of the apron is level in both directions and a small amount of lash is present on the rack. Once the saddle is installed, I checked again the level in both directions and it checks out good; level across the cross slide and matches the bed in the long axis.
What I'm planning to do is machine down .057" and use .0625" Rulon with a .010 scraping allowance.
Now the Vee way is the most worn and needs this amount cut away, but the flat way is not as bad. For consistency I was thinking of machining .057" off both so the same amount of Rulon would be left.
Thanks for your attention and if there is any info not provided let me know and I'll do my utmost. Is this the correct course of action?
Thanks,
Mark
I'm probably overthinking this, but I want to be very sure before I set up the mill and cut the saddle slide ways for Rulon application. The machine is a 1941 Pratt Whitney Model C 14x54 toolroom lathe. The bed is scraped and now it's time to prep for Rulon to bring the apron up to its original position.
I have the apron lifted up into its nominal position by sweeping the feed reverse rod from the fixed tailstock end fixture. The top of the apron is level in both directions and a small amount of lash is present on the rack. Once the saddle is installed, I checked again the level in both directions and it checks out good; level across the cross slide and matches the bed in the long axis.
What I'm planning to do is machine down .057" and use .0625" Rulon with a .010 scraping allowance.
Now the Vee way is the most worn and needs this amount cut away, but the flat way is not as bad. For consistency I was thinking of machining .057" off both so the same amount of Rulon would be left.
Thanks for your attention and if there is any info not provided let me know and I'll do my utmost. Is this the correct course of action?
Thanks,
Mark