Getting started in 3D printing

Anyone here doing 3d printing? I have gotten into laser engraving and find the need to have some jigs as work holdings. Also looking into a cnc machine and think I could use the printer to make sure tools to use. Most items would be small and no bigger than 4"x4"

Any recommendations on a good starter machine. Would like to keep under/around $500 if that is even possible.

Thanks