About this 3D model
This is concept of cheap 3D scanner with lidar ( http://www.benewake.com/en/tfmini.html ). I use Arduino Nano with CNC shield + A4988 driver for stepper motor. Scanner write position (x,y,z) to SD card. buttons for home H(orizontal), for home V(ertical), scan and stop(not working yet). v1 v2 for now: this is first test build. NOT work microstep, so 1 step is 1,8° (not good for scanner-working on) lidar accuracy is not acceptable - see video UPDATE: modify for change lidar or ultrasonic senor. enabled multistep on driver(shield has wrong wiring...) In archive scannerv2.zip are all files more info. http://mochr.cz/3d-scanner/ Print instructions Unassociated tags: cloud points, cnc shield, stepper motor, ultra sonic Category: DIY