| Year | 2013 |
| Date | 19-Apr |
| Volume | 210 |
| Issue | 4,454 |
| Page | 574 |
| Category | Workshop |
| Part | |
| Title | Any advance on The Man with the Sticky Pin? |
| Author | Ray Griffin |
| Notes | Finds a centre by laser light. Considering lasers, the alignment of the laser, work holding, a USB microscope as an aid to centring, conclusions, references |