Guides
What Does the G in G-Code Stand For, Actually?
Officially the G is the address for preparatory functions; informally everyone says geometric. The real story is the word-address format both answers sit in.
Lawrence Arya··5 min
Guides
Why Is There a Percent Sign at the Top of My G-Code?
The percent sign is a tape-era file marker: it told the reader where the program began and ended. Controls still honor it, and its absence still bites.
Lawrence Arya··4 min
Practice
Why Does G-Code Use Line Numbers (N Codes)? History and Today
N numbers are labels, not commands: born in the punched-tape era for block identification, surviving today for restarts, jumps, alarms, and shop communication.
Lawrence Arya··4 min