Still trying to refurbish the Boxford AUD.
The Cross slide has several thou of movement, mainly in the middle of
The entire slide including the leadscrew can be pulled backwards and
forwards and it seems to be play between the leadscrew thrust bearing
and the saddle itself.
Is there any way to tighten this up?
Someone suggested that I adjusted the cross slide dial, but it seems
immovable longitudinally on its shaft, though it can rotate to reset a
On a second issue, the Cross slide dial has 250 divisions,
corresponding I thought to 125 thou of movement per revolution, 250 thou
change in diameter.
Putting a DTI seems to indicate only 100 thou, plus or minus the
movement mentioned above.
Is it likely that the leadscrew had been changed or am I
misunderstanding the nature of the beast?
Lastly, it has been fitted with a one HP single phase motor. The revs
drop perceptibly under any load. Indeed I can all but stall it by
applying 'squeeze' finger pressure to the main lead screw where it
leaves the gear box and did stall it parting off a 20 mm delrin bar
using a 1/16th parting tool. Using it on steel only removes dust rather
than swarf or chips with any tool.
Is this normal?
Everything seems to turn freely and with the belts removed light
pressure turns the chuck. After 30 mins at the highest speed the
intermediate pulley shaft is warm, but the headstock is still cool to
Any help gratefully accepted
14 years ago