Advice on buying servos.

[Agathon]

Yes and No. Any servo motor rightly belted could serve for spindle. But then comes the RPM. The servos that are meant for spindles could spin at higher RPM and have slightly different curve. We are talking about typical motor that will be connected to BT30, etc spindle via belt. As Yes, you could gear up any servo motor but then you need bigger more expensive motor.

these are the servo spindle motors. they gto up to 15k rpm https://www.aliexpress.com/store/pro...809932059.html

Thanks again. Not cheap then.

While I'm here. Am I right in thinking that the advantage of an absolute encoder over incremental is that the motor position is known after power-down?