3D printed toy train

Version 15.1 by Victor Zhang on 23:50, 18/12/2019

Brief Description:
- This is a 3d printed toy train that conforms to the standard of Tomica train
  Tomica Track With a BLE interface through MH-ET Live ESP32 Kit
- The top cover is not mandated
Other resources
- The L293DD H-Bridge board to fabricate and The sketch to run on MH-ET Live ESP32 Kit
Other parts needed
- Screws and nuts:
  - m2x6 8pcs
  - m2x25 4pcs
  - m2x10 1pc
  - m2x30 2pcs
  - m2 Nuts 15pcs
- Shafts
  - m2 x 30 1pc, m2 x 40 1pc
- GA12-N20 (Use 6V, the one in the picture is hard to find, needs to grind the shaft down to M2 x 8mm)
- C15-2A
- 08-2A x 1 inside the picture below
Known Issues: