I built my own 3D scanner with an arduino, 2 steppers, a VL6180 ToF range finder, and then converted the range finder data into a .OBJ file generator. Magic! : r/3DScanning
3D Scanner – Ocean State Maker Mill
Making 3D Scanner | 3D Scan Object At Home | Plot in Python - Arduino Project Hub
3D scanner with Arduino and very cheap photogrammetry