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3d-scanner

This project contains software and 3d files for a 3d Scanner developed for the Virtual Reality Course at Hochschule Heilbronn in SoSE 2024.

Showcase

blueprint

trailer.mp4

Features

  • Manual control of the scanner movement on two axis
  • Motor leveling of the axis that holds the camera with end-switches
  • Automated photo mode where the scanner takes a specified amount of photos from multiple distributed angles, so that the images cover the object from all Sites

Structure

  • configuration: contains ansible playbooks to configure the rpi and install the scanner firmware, and caddy webserver.
  • firmware-rpi: contains firmware to controll the scanner
  • frontent-scanner: contains the frontend for the webservice to controll the scanner with a graphical ui
  • 3d: contains 3d files to build the scanner

3D Modells

stl files can be found in the 3d folder, look at the blueprint in the readme to understand where which part fits

Used Hardware

  • Raspberry Pi zero 2w
  • m3 screws & m3 threat inserts
  • eleego cabels
  • ELEGOO stepper motor x3 and driver board ULN2003 x3
  • 3d Printer & Filament
  • endswitch

Pins

  • motor table axis: pins index [3 5 7 11]
  • motor one camera: pins index [23 29 31 33]
  • motor two camera: pins index [8 10 12 16]
  • endswitch one: pins index [in:36, out:35]
  • endswitch two: pins index [in:38, out:37]

Driver

The gobot driver for stepper motors was used to controll the scanner 2 axis.

Software

Linux RPI Configuration

install ansible and docker on host system install pi-blaster (for gobot if older rpi is used, not needed for newer)

Gobot setup

oder version of rpi issue link

Build go

How To Build

linux: command: GOOS=linux GOARCH=arm GOARM=6 go build -o ./build/scanner

windows: (set GOOS=linux) & (set GOARCH=arm) & (set GOARM=6) & go build -o ./build/scanner

  • run docker compose to build the artifacts
  • then run the ansible playbook ansible-playbook -i production site.yml

Copy to rpi

scp scanner marvin@192.168.188.59:/tmp