Guides
How to Edit G-Code on a Touchscreen CNC Without Misery
Touchscreen G-code editing is fine for one-word fixes and miserable for everything else. The decision rule, the techniques, and the USB workflow that wins.
Lawrence Arya··4 min
Posts, page 11 of 44
Guides
How to Find X and Y Coordinates for a Bolt Hole Circle in G-Code
A bolt hole circle is sine and cosine around a center: X = center + radius times cosine of the angle, Y = center + radius times sine. The formula and a worked set.
Lawrence Arya··4 min
Guides
How to Fix a Cross-Threaded Part With G-Code: The Honest Path
Most cross-threaded parts are scrap, and knowing why takes one paragraph. For the salvageable cases, the thread pickup procedure is the real answer.
Lawrence Arya··5 min
Guides
How to Fix ChatGPT Fusion 360 Post Processor Code
ChatGPT edits to Fusion 360 .cps posts fail in patterned ways: invented API functions, misplaced logic, version drift. The repair method that works.
Lawrence Arya··5 min
Guides
How to Learn G-Code While Operating a Machine All Day
Operating is a full-time view of running programs; turn that view into learning by reading the program you run, drilling the gaps on breaks, and asking why.
Lawrence Arya··5 min
Practice
How to Learn VMC Programming on Mobile: The Honest Split
A phone covers the half of VMC programming that is vocabulary, reading, and theory, and cannot touch the machine half. The four-week mobile plan that works.
Lawrence Arya··4 min
Guides
How to Manually Enter a Tool Offset in G-Code
Most tool offsets are entered on the offset page, not in the program: G43 H calls a length, the table holds the value. Where each lives, and the G10 exception.
Lawrence Arya··4 min
Guides
How to Manually Verify AI-Generated G-Code: Six Passes
AI G-code fails in plausible ways, so verification needs structure: six passes from dialect check to single-block first run, each catching what the last cannot.
Lawrence Arya··5 min
Guides
How to Read a VERICUT Error Log Against Your G-Code
A VERICUT error log triages into four families: program errors, collisions, overtravel, and setup mismatches. Reading it by family beats reading it by line.
Lawrence Arya··5 min
Guides
How to Read G-Code to Find Errors: The Four Error Species
Error-hunting in G-code is a different read than understanding it: four error species, each with telltales, found by scanning in passes instead of lines.
Lawrence Arya··4 min
Guides
How to Read G-Code to Find the Next Tool Change
Finding the next tool change is a search skill: look for the T word and M06, read the preamble that re-establishes the tool, and use it as a safe restart point.
Lawrence Arya··4 min
Guides
How to Safely Restart a CNC Program From the Middle
Restarting mid-program is a state problem: everything the skipped lines established must be rebuilt first. The gather-restore-enter method, step by step.
Lawrence Arya··4 min