I have a CNC shield that I am using to run a motor. Is there a way that I can draw power from the CNC Shield (that's using 12 volts) to the Arduino Uno? Right now I am using a separate USB power bank and it's getting clunky to carry around. Thanks.
You can take a feed from the shield but you should also use a regulator to drop the 12 volts down to a more acceptable 7-10 volts.
Why do you need the cnc shield and UNO as a seperate entity ?
Almost everyone I know programs the UNO with GRBL and feeds that using a computer which supplies the UNO with what it needs.
BTW 12 volts is about the minimum for the CNC shields unless you are using such as NEMA 14 or lighter duty NEMA 17.
I made a motorized camera slider using a Nema 17 motor (will be adding 2 more later) so it would be nice to have everything be portable and stuff. I'll look into a regulator, thanks!