You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

2.0 KiB

Profilometer Probe

Device was created as part of a bachelor's thesis at BUT VUT 2022/2023 named Probe for Determining the Surface Condition of Small Diameter Barrels

Detailed description of device design and implementation is inside thesis

alt text alt text

Hardware

Models

  • All 3D printable models are located inside Models folder
  • Models are designed to be printed with standard 2mm layer height
  • When slicing be sure to print outer walls first to make print more accurate

Assembly

  • All screws are size M3
  • Assembly should be done accordingly

PCB

  • PCB should be two sided with 1.6mm width
  • Design files are created in KiCad

Components

  • Development board: Nucleo L432KC
  • Camera: ArduCam mini 5MP Plus
  • Distance sensor: Pimoroni LV53L1X
  • Complete list of components and connectors for probe can be found inside HW/Parts.md

Firmware for profilometer probe

Build

  • Build using Makefile inside Firmware folder (dependency: arm-none-eabi)
  • Flash onto hardware using flash option for make command $ make flash

Usage

  • Connect probe to pc using usb c cable and firmware will start sending sending data automatically

Documentation

  • Create documentation using 'doc' option of Makefile '$ make doc'

Software for receiving data

Build

  • Build using Makefile inside Receiver folder

Usage

  • Has to be run with sudo permissions to correctly access USB CDC port.
  • '$ sudo ./main -p [-s Save received jpeg to files] [-r Print raw received CDC data to standard output]'
  • Prefer running with optional -s command for ability to inspect already captured images

Documentation

  • Create documentation using 'doc' option of Makefile '$ make doc'

TODO

  • Process image and filter only laser line from it
  • Use precessed data to determine depth or height of irregularities