| Year | 2021 |
| Date | 04-Jun |
| Volume | 226 |
| Issue | 4,666 |
| Page | 744 |
| Category | Stationary Engine |
| Part | 5 |
| Title | Thompstone Engine |
| Author | Jason Ballamy |
| Notes | Builds a mill engine first described in Model Engineer 120 years ago. Eccentric rod, eccentric strap, eccentric, valve rod, valve, valve nut, pivot pin, valve rod guide |