slow-poke
Ultra Member
I managed to get the SM 10" Utilathe down and into the shop yesterday (Thanks Brad for the help). The transmission is too noisy for my liking so I'm sizing up plans to bypass the transmission altogether and drive the spindle from perhaps a ~3HP servo motor via taper lock pulleys. No gear train, no noise. I'm going to technology it into (noise) submission. Will it have the grunt of the original lowest gear, probably not, however with 3HP and some multiplication via the pulleys perhaps enough.
A few unknowns:
1) Can I squeeze in a two step pulley with perhaps a 3:1 ratio for lower RPM grunt?
2) Sourcing a suitable servo or possible a 3PH with very good low RPM torque
3) Fitting new motor (fair bit of space back there.
4) Practical maximum spindle RPM? I mostly turn regular steel and aluminum so I'm thinking 1500RPM, thoughts please?
I will also do away with the threading gearbox and replace that with an ELS, however that's another topic.
A few unknowns:
1) Can I squeeze in a two step pulley with perhaps a 3:1 ratio for lower RPM grunt?
2) Sourcing a suitable servo or possible a 3PH with very good low RPM torque
3) Fitting new motor (fair bit of space back there.
4) Practical maximum spindle RPM? I mostly turn regular steel and aluminum so I'm thinking 1500RPM, thoughts please?
I will also do away with the threading gearbox and replace that with an ELS, however that's another topic.
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