Cars have syncros your lathe does not, you could try it if you want to spend more than the machine is worth on gears. Get the right size phase converter.My new to me victor lathe does not have a clutch (I don't think any of them do).
But here's the thing, because I do not have 3 phase I have a rotary phase converter to make the needed 3 phase. However on higher speeds the lathe do not start reliably, meaning it stalls out then trips the breaker.
I know victor lathe manual and the face plate on the headstock itself says to not change speed while the lathe is running, but I wonder if anyone has a sure fire way of quickly switching gears while it runs in order to get me the higher speed without having to stop the machine and then restart it (mainly the problem is the motor having to overcome all the inertia of having to spin the lathe up to speed).
Has anyone tried this? Start the lathe up at a low speed then increment the speed up little by little until I get to the desired speed, kinda like shifting gears in a manual transmission car?
I have only successfully switched speed while running on the lower speeds... any attempt to do so at a higher speed and I can't do it fast enough and so I hear the horrible grinding noise.