bit goes to bottom of project

Haven’t had a lot of time to play around on my 1F. I work too much right now. I’m trying to cut the Last supper and every time I start, the bit goes al the way to the bottom of my piece. Wood is 1.5". I forgot to add im using carveco maker plus

Sounds like you aren’t zeroing your work properly. In CAM you pick an origin location (left front corner, top of stock; for example) when you set-up your machine to cut, you have to zero your machine to that same location.