I own a Boxford 4 1/2" Model A lathe.
It is provided with a standard cross slide and a T-slotted cross
They are both engraved 90-0-90 degrees,
However, the standard cross slide has the 0 degree setting along its
axis, but the T-slotted slide has all the settings about 15 degrees
anti-clockwise with respect to the axis.
Can anybody expain to me why?
On my CUD, the protractor engraving was on a separate metal ring that was
inserted into a circular recess on the cross slide. Since there is no
register I would think that it has been replaced out of alignment on the T
Regards, Gary Wooding
(Change feet to foot to reply)
Looking closely at my slide, I can just see the separate ring which
has been engraved. There is no practical way in which it can be
removed and replaced correctly. I will just have to use my standard
cross slide for work that requires rotation, and my faulty T-slotted
slide for other work.
At least, I now know that the calibrations was not for some other