A quick update on the lathe
Pretty much as expected everything that could be adjusted needed serious attention!
All gibs, all backlash adjustments, chuck concentric issues, loose belt , little bit of rust here and there !
All manageable and mostly complete now except the chuck…..
It’s a very nice Bernerd grip true which has 3 tapered cross bolts which interact with the alignment between the chuck and backplate, The idea is to have the backplate to chuck bolts slightly loose and then clock in a precision bar close to the chuck using the 3 taper bolts , Unfortunately access to the back plate bolts is ok but the second set ( let’s call them slip set) Haven’t had access holes through the back plate to tighten when happy, de mounting the chuck to do this looses all the Accuracy gained!
So all it’s life the bolts were loose, Plus one back plate to chuck bolt missing so the whole thing is all over the place ! Zero rigidity especially with longer stock…
The plan here is to add the missing bolt, attempt clocking in to as good as the spindle ( 0.005mm)
And if it’s successful I will transfer the clearance holes to allow tightening when all is mounted
Should be salvageable
If not I will replace the chuck for something more convenient and accept a little more runout
