Spindle Clamp -If you cannot unscrew the chuck on an engineer's lathe you need a spindle clamp/lock

[@rustyshackleford928]

Thanks for the video. I notice you have a tachometer mounted on the spindle as I do on my old Southbend. How did you get the magnet to stay on the spindle. I've tried glue and epoxy but neither seem to work very long. Thanks again, I am enjoying your projects.

[@Evan-e-cent]

You are probably familiar with the two threaded rings or nuts that are used for adjusting the pressure on the conical spindle bearings. The outer threaded ring acts as a locknut. I removed that and made a copper washer to fit between the two rings. This washer was made with a lug of copper plate protruding. A small neodymium magnet was wrapped in place by folding the copper lug around it. I hope this helps and I am glad that you have found the videos interesting.