Can Rob and i temp you with a DC motor.......just imagine, endlessly adjustable speed at the touch of a dial.
Seriously when i find a DP worth while it will be the first thing i do. Otherwise it will be set to one speed and never changed.....all it takes is a donor treadmill and some electrics, easy!
1915 17"x50" LeBlond heavy duty Lathe, 24" Queen city shaper, 1970's G Vernier FV.3.TO Universal Mill, 1958 Blohm HFS 6 surface grinder, 1942 Rivett 715 Lathe, 14"x40" Antrac Lathe, Startrite H225 Bandsaw, 1949 Hercus Camelback Drill press, 1947 Holbrook C10 Lathe.