Originally Posted by pinkCastleDH

I don't think I understand why it makes sense that they are incapable of FMQ? Do they only work with an even feed rate (though how would that would work on a treadle)? Just curious - the one vs we've picked up is a 3/4 machine so not really ideal for FMQ anyway.

On the vibration issue I would expect the oscillating machines to vibrate quite a bit more than the rotaries as well, though the mechanism isn't trying to stop/start quite as large a mass so I can see why it wouldn't be as bad as the vibrating shuttle.