3D scanner (lidar, ultrasonic) v2

thingiverse

This is a concept for an affordable 3D scanner that utilizes lidar technology (check out the Benewake TFmini at http://www.benewake.com/en/tfmini.html). I've paired it with an Arduino Nano and a CNC shield, along with an A4988 driver to control the stepper motor. The scanner records its position in 3D space (x,y,z) on an SD card. I'm working on implementing buttons for home H (horizontal), home V (vertical), scan, and stop functions – although the latter isn't quite operational yet. Version 1 is available at https://www.youtube.com/watch?v=Q2yE-5H5z7s&feature=youtu.be Version 2 can be found at https://www.youtube.com/watch?v=YJjjC-yB83Y For now, this is the first test build. Unfortunately, microstepping isn't working properly, so each step is equivalent to 1.8° – not ideal for a scanner. The lidar accuracy leaves much to be desired, as you can see in the videos above. UPDATE: I've made some adjustments to allow for easy swapping of the lidar or ultrasonic sensor. Additionally, I've enabled multistep on the driver, although it seems there's an issue with the shield's wiring... You can find all the files in the scannerv2.zip archive. For more information about this project, check out http://mochr.cz/3d-scanner/.