Denford Software & Machines

Customer writes

I am contemplating purchasing a TDS1 Lathe.
It has metric screws and a metric thread cutting gear box.
Is it possible to cut imperial threads and if so what range?

In its basic form, it won't cut exact imperial threads, but can cut some close approximations which may be good enough for some purposes - see my calculator here

The proper transposing setups (metric-imperial and imperial-metric) are shown here.
The quadrants occasionally come up for sale - otherwise the drawings for the various parts needed are all on the above thread.

Andy