The article has been written to educate the reader on the various Boxford lathes produced and to be used as a guide when looking to identify the model of the machine. Using the features of the machine will simply tell us the model but we need to know what to look for.
To locate the serial number on these machines, look to the right hand side of the bed at the tailstock end. The serial number should be just behind the two bolts which hold the leadscrew bracket in place.
Earlier Boxford lathes had the motor mounted to the rear of the headstock. The model identification below can be used in the same way but with the motor mounted at the rear, the lathes name would be a Model A instead of AUD and Model B instead of BUD etc. The UD in the naming sequence stand for Under Drive and refers to the motor being mounted in the cabinet under the headstock. The underdrive system was introduced around 1959.
AUD – These models are most easily identified by the gearbox which sits underneath the headstock on the left hand side of the machine. These models also have the power feed apron which gives both traverse and cross powered feeds.
The gearbox allows the user to change the RPM of the leadscrew in relation to the RPM of the spindle by changing the configuration of the handles on the gearbox. It can be used to change the speeds of the powered feeds or the desired pitch in screwcutting
The AUD, ME10, VSL & VSL500 were supplied with either a metric or imperial gearbox
BUD – The BUD is can be identified by having the same apron as the AUD but does not have the gearbox. These machine have the same power feed set up as the AUD but the adjustment of the leadscrew RPM has to be done through the use of changegears mounted inside the gear train cover to the left of the headstock. BUD machines should come with a set of change gears and the ones required will depend on whether the machine is for cutting metric or imperial threads.
The AUD, BUD, ME10, VSL & VSL500 all share the same apron allowing powered traverse & cross feed through the keyway in the leadscrew.