Code reference
G-Code R vs I and J for Beginners: Two Ways to Define an Arc
An arc needs a center, and G-code gives two ways to specify it: R names the radius, I and J point to the center. Each has a job, and R has one trap.
Lawrence Arya··4 min
Guides
G-Code Simulator for CNC Turning Only: The Honest Options
Dedicated turning-only G-code simulators are rare, and most free tools are mill-first. Where lathe simulation actually works, what breaks, and the fixes.
Lawrence Arya··5 min
Guides
G-Code Simulator for Ubuntu Linux: The Working Toolchain
Ubuntu is the best-served OS for free G-code simulation: LinuxCNC runs natively, CAMotics ships a .deb, and browser viewers cover quick checks. The map.
Lawrence Arya··4 min
Guides
G-Code Syntax Checker for ChatGPT Output: The Real Stack
No universal G-code syntax checker exists, because syntax is dialect-specific. The working stack: viewer, strict interpreter, highlighting, and a human pass.
Lawrence Arya··5 min
Guides
G-Code to Calculate Chip Load: Forward, Reverse, and Macro
Chip load connects tool data to the F word: compute feed forward from chip load, audit any program in reverse, or let macro variables do it in the code.
Lawrence Arya··4 min
Code reference
G04 Dwell Time Format: Fanuc vs Haas and the Decimal Trap
G04 means pause everywhere; the number's meaning is dialect: P as milliseconds or seconds, X and U as alternatives, and a decimal that changes everything.
Lawrence Arya··4 min
Code reference
G50 on a Lathe: Spindle Speed Clamp vs Work Offset, Untangled
G50 carries two unrelated jobs on lathes: the modern spindle-speed clamp with S, and the legacy coordinate-system-setting form. The words after it decide.
Lawrence Arya··4 min
Code reference
G76 Threading Cycle on Fanuc, Explained Simply
G76 is two lines that delegate a whole threading job: the first line sets the campaign rules, the second describes the thread. Each word, plainly explained.
Lawrence Arya··4 min
Code reference
G92 vs G76 Threading on a Lathe: Per-Pass vs Delegated
G92 cuts one synchronized threading pass per block you write; G76 plans the whole sequence from two lines. When manual control of passes earns its keep.
Lawrence Arya··4 min
Code reference
GRBL vs LinuxCNC G-Code Compatibility, Honestly Compared
GRBL runs a deliberate subset of the standard; LinuxCNC runs a full implementation with extensions. Programs flow down cleanly and up only with care.
Lawrence Arya··4 min
Code reference
Haas Classic vs NGC G-Code Differences: What Actually Changed
Between the Haas Classic control and Next Generation, the G-code barely changed; the interface, features, and capacity did. What carries over, and what is new.
Lawrence Arya··4 min
Code reference
Haas Speeds and Feeds Chart PDF: Why Formulas Beat the File
No universal Haas speeds and feeds chart exists, because cutting data belongs to the tool and material, not the machine brand. Two formulas replace the PDF.
Lawrence Arya··4 min