| Year | 2024 |
| Date | 14-Jun |
| Volume | 233 |
| Issue | 4,745 |
| Page | 24 |
| Category | Workshop |
| Part | 2 |
| Title | Engineering Surface Flatness |
| Author | Neil Raine |
| Notes | Discusses the meaning, measurement and methods of achieving flatness. Reference standards, assessing surface flatness using a reference standard, using the wavelength of light to measure surface flatness, the condition of perfect flatness, type and causes of surface imperfection, mechanical wear, how flat is flat enough? Manufacturing flatness, hand scraping, surface grinding, summary, references, notes |