These things should all be included in your post. It makes it much faster to diagnose problems.
Did you buy everything from here?
a)If you did not or changed some things please don’t leave out any details and include what firmware you flashed. Include links so we know what you are using. A “No” answer does not help at all.
b)What board do you have?
c)What firmware is on it or which did you buy it with?
Are you using end stops?
a)If so how are they wired, NC or NO.
Mac or PC (windows xp, 7, 8, 10?), linux?
Include a picture so obvious errors might be spotted.
Yes, it is not a printer build, but please understand it is using marlin firmware, which is primarily used for 3d printers, hence it will refer to itself as a 3d printer. Technically, a 3d printer is just a type of CNC. The MPCNC just uses marlin to control the movement.