farmersamm
Cast Iron
- Joined
- Feb 26, 2008
- Location
- oklahoma
Been looking out the window this morning, and either gonna unhook the flatbed, and move some hay with the hay trailer, or leave the flatbed hooked. A brand spankin' new lathe is about a few hours away...………
Being kind of reversed (I might have been a breach presentation at birth, dunno), I finally got around to actually taking a look at the bed on the lathe. Shoulda done it sooner, but like I say...…..
Checked to see if the doggone thing was reasonably non-twisted.
Before everybody has a tizzy, it's good enough for preliminary measurments (y'all call that metrology I believe ). Actually, we're lookin' at a 650# machine that isn't gonna show much twist unless it's bolted to a corrugated floor. Not enough weight to move the casting that much. More on that later...
First check was to find an approximation of front to back wear. Horizontal slop.
Movement from tailstock to this point was virtually non existent. Really. So much for the old Stanley level, and the mounting job on the floor. We're pretty close. Lathe bolted down, no shims.
From the previous measurement, to this point, next to the headstock (about 18" travel), the saddle is taking a hard left turn near as I can reckon While not jumping up and down with joy, I'd figured it might show this. It's wear on the v way in response to tool pressure over over a half century.
The wear is a "step". Abrupt shift to the 5ish thou. I'm thinking this is still doable, just have to be aware where you're working, and compensate. It's the transition point that's gonna be sticky I'm thinkin'.
Did I mention that the saddle rocks a skosh near the headstock?
While the saddle is on a good section, the indicator is set up to find just what might be goin' on. (The rocking is on the back left side of the saddle)
Being kind of reversed (I might have been a breach presentation at birth, dunno), I finally got around to actually taking a look at the bed on the lathe. Shoulda done it sooner, but like I say...…..
Checked to see if the doggone thing was reasonably non-twisted.
Before everybody has a tizzy, it's good enough for preliminary measurments (y'all call that metrology I believe ). Actually, we're lookin' at a 650# machine that isn't gonna show much twist unless it's bolted to a corrugated floor. Not enough weight to move the casting that much. More on that later...
First check was to find an approximation of front to back wear. Horizontal slop.
Movement from tailstock to this point was virtually non existent. Really. So much for the old Stanley level, and the mounting job on the floor. We're pretty close. Lathe bolted down, no shims.
From the previous measurement, to this point, next to the headstock (about 18" travel), the saddle is taking a hard left turn near as I can reckon While not jumping up and down with joy, I'd figured it might show this. It's wear on the v way in response to tool pressure over over a half century.
The wear is a "step". Abrupt shift to the 5ish thou. I'm thinking this is still doable, just have to be aware where you're working, and compensate. It's the transition point that's gonna be sticky I'm thinkin'.
Did I mention that the saddle rocks a skosh near the headstock?
While the saddle is on a good section, the indicator is set up to find just what might be goin' on. (The rocking is on the back left side of the saddle)