This is the 2020 weekly documentation of the development process for the Train Thing. To expand a section, click on the "►" icon next to the annual or monthly title.


  • Vertical mill ordered and received
  • Tools to measure ordered and received
  • Much time on Search Engine Optimization (SEO). Sitemaps and element descriptions entered.
  • Work on the "machine shop"
  • First cut at Laptop to Pi Semaphore commands
  • Raspberry Pi fan hardware finished.
  • Add a 2nd Raspberry Pi to monitor turnout status
  • Modified the software library to manage two Raspberry Pi Unicorn HD HATs.
  • Added first TrainThing video to website.
  • Added X-DRO to mill.
  • Lathe and horizontal band saw assembled and in place
  • Designed a Dial Indicator Holder for the lathe.
  • Updated simulator documentation
  • Added simulator "quick start video"
  • Working on simulator signals
  • Added "Design Details" section to this documentation.
  • Idea for new 'features.'
  • Ordered a TrainCam. We will see.
  • Added an interface board to eliminate some point-to-point wiring (mess) around the Tortoise and Wabbit.
  • Started glossary
  • Rewriting, adding structure to the simulator.