I have been toying with the idea of getting a spindle. while looking I find nearly every brand touts their highest speed but since i am thinking about doing brass and aluminum as well as wood, I am wondering if there are slower speeds as well. Down to say 2000rpm? slower is good for metal but bad for wood I know so I might be barking at the moon here.
did you already use the search function and searched for Lower speed high torque spindles? I ask because among some relevant threads on the topic, there was this thread the other day:
Note that the assumption that a spindle with four magnetic poles which runs at half the speed of a spindle with two magnetic poles will automatically have twice the torque has not proven to be true, if you follow this thread.
You remember also the thread Cutting thin gauge steel which you participated in.
I think one of the challenges, and limitations, will be that the Onefinity although one of the more rigid hobby CNCs, may not be the best pairing for a high torque/low RPM spindle. I think it is matched well with the high speed spindles which can mill both wood and non ferrous metals with acceptable results.
yeah it was more me just anticipating getting a spindle one day and trying as always to do my due diligence. and finding out what works for others herrre on the forum.