---
active: false
tags:
  - project
  - eg
created: 2025-05-30
completed: 2025-08-22
---
## Goal

Create a fireplace that cranks open, but has a burning fire that crackles.
## Tasks

- [x] Order parts for the crank and pegboard cogs ➕ 2025-05-30 ✅ 2025-05-30
- [x] Purchase or find the 12V lighter connectors ➕ 2025-05-30 ✅ 2025-06-23
- [x] Design the 12V lighter holder for the female side ➕ 2025-07-22 ✅ 2025-08-23
- [x] Design the 12V lighter holder for the male side ➕ 2025-07-22 ✅ 2025-08-23
- [x] Design the two cogs ➕ 2025-05-30 ✅ 2025-08-23
- [x] Order metal for the shafts ➕ 2025-05-30 ✅ 2025-08-23
- [x] Pick-up metal for the shafts ➕ 2025-05-30 ✅ 2025-08-23
- [x] Weld and shape the end of the crank shaft for the handle ➕ 2025-05-30 ✅ 2025-08-23
- [x] Print the cogs on the 3D printer ➕ 2025-05-30 ✅ 2025-08-23
- [x] Install cogs on the shafts ➕ 2025-05-30 ✅ 2025-08-23
- [x] Create the crank shaft and wall brackets ➕ 2025-05-30 ✅ 2025-08-23
- [x] Drill a straight through hole in the wall ➕ 2025-05-30 ✅ 2025-08-23
- [x] Install crank shaft in wall ➕ 2025-05-30 ✅ 2025-08-23
- [x] Install ratchet ➕ 2025-05-30 ✅ 2025-08-23
- [x] Install a powered lock on the fireplace to prevent it being opened too soon ➕ 2025-05-30 ✅ 2025-08-23
- [x] Design a mounting bracket for the 12V connectors ➕ 2025-05-30 ✅ 2025-08-23
- [x] Wire up the fire from the 12V connectors ➕ 2025-05-30 ✅ 2025-08-23
- [x] Find crackling fireplace audio loop ➕ 2025-05-30 ✅ 2025-08-23
## References

- [Skill Set: How To Make Pinwheel Gear Patterns - Make:](https://makezine.com/article/workshop/skill-set-how-to-make-pinwheel-gear-patterns)
- [Two Methods for Making Pinwheels Patterns - Dug&#039;s Tips 3 - Cabaret Mechanical Theatre](https://cabaret.co.uk/two-methods-for-making-pinwheels-patterns-dugs-tips-3)
- [Wooden Circles for Your Automata Projects - Dug&#039;s Tips 2 - Cabaret Mechanical Theatre](https://cabaret.co.uk/wooden-circles-for-your-automata-projects-dugs-tips-2)
- https://www.onlinemetals.com/en/seattle
- [Making wooden gears out of plywood](https://woodgears.ca/gear_cutting/template.html)