Run esc and brushless motor from power supply?

[rcs2022]

I was wondering is it possible to run a mamba monster esc and castle motor maybe a 1515 2200kv or 2650kv from a 12v power supply?
Lets assume it's a 50 amp power supply, will the motor want to draw more and overload the power supply, or will the amps be limited to the power supply max current capability.
I know it's quite weird, I am trying to run my cnc spindle from stuff I have laying around.
Obviously if my cuts are light the motor and esc shouldn't draw a lot of current, but if I run it hard will the power supply be compromised or the esc also?

Hope some one can shed a light.
Thanks in advance.