| Aspect | AS 1100.101‑1992 | AS 1100.101‑2015 (or ISO) | |--------|------------------|----------------------------| | Projection | First angle only | First or third angle (must be marked) | | Line types | 6–8 specific types | Simplified, more digital‑friendly | | Lettering | Strict hand‑lettering style | Any legible sans‑serif font | | Default units | mm | mm, but explicit if other units used | | CAD support | None (pre‑digital focus) | Full CAD symbol libraries |

Imagine drawing a simple shaft with a keyway in first angle projection:

: Recommends standard scales for various technical fields and provides a list of approved abbreviations to minimize notes and language barriers. Policy Commons How to Access the PDF Official and secondary sources for this standard include: AS 1100.101-1992 - Standards Australia

– Lists recommended scale ratios and instructions on how to indicate them clearly on a drawing. Section 6: Projection Methods

as the default Australian convention, though it also covers first-angle and pictorial projections like isometric and perspective. Sectioning