As a lot of companies are in the market, machine guidance or machin control is catching your eyes! The price range is all over the place so it's hard to tell the difference among 1D / 2D /3D. So I dug deep into it. [Digging Bro Digs for you] I dug deep into 1D 2D 3D machine! (feat. Shin Seunghoon from Leica Geosystem Korea)