Guides
Fanuc Alarm 021 Illegal Plane Axis Commanded: Fix
Fanuc alarm 021 means an arc was commanded with an axis outside the active plane. Here is why plane selection causes it and how to fix the offending block.
Lawrence Arya··5 min
Guides
Fanuc Illegal Use of Decimal Point Alarm (007)
Fanuc alarm 007 means a decimal point on an address that does not allow one, or two decimals in a word. Here is which addresses take a decimal and which do not.
Lawrence Arya··4 min
Code reference
Fanuc Robot Teach Pendant vs Standard G-Code Compared
Fanuc robots run point-taught TP programs; CNC machines run coordinate-explicit G-code. The concepts map cleanly: frames are offsets, points are positions.
Lawrence Arya··4 min
Practice
Free CNC Software for Vocational Trade Grant Programs
Grant-funded CNC training programs can cover the whole software layer free: practice apps, open-source machine control, free education licenses, and open docs.
Lawrence Arya··4 min
Practice
Free CNC Study App and Resources for Veterans
Veterans moving into machining can build CNC code skills without spending anything: a free recall app, free study guides, and transition programs that stack.
Lawrence Arya··4 min
Practice
G-Code Basics in 10 Minutes: A Free Beginner Guide
Learn the G-code essentials fast: what a program is, the dozen codes that cover most of it, and a tiny example. Then practice them so they actually stick.
Lawrence Arya··4 min
Practice
G-Code Flashcards for Special Education Students
Flashcard-style G-code practice suits special education well: bite-sized, self-paced, predictable, with immediate feedback. Here is why it works and how to use it.
Lawrence Arya··4 min
Practice
G-Code for Automatic Tool Changers on Wood Routers
On an ATC router the file just says T2 M6; a macro does the choreography. Here is the sequence, the rack vs carousel difference, and the per-tool Z that matters.
Lawrence Arya··4 min
Practice
G-Code Mnemonics and Memory Tricks That Stick
A working collection of G-code memory hooks: zero-cutting G00, the off-follows-on M-code families, Z follows the spindle, and the -30- end mark behind M30.
Lawrence Arya··4 min
Guides
A G-Code Test to Prove You Can Set Up a CNC Machine
Setup competence is provable with a short test: explain the safety block, set offsets correctly, and prove out a program. Here is the checklist shops trust.
Lawrence Arya··4 min
Code reference
G-Code Variables: #100 vs #500 Series Differences
Macro variables differ by lifespan: #100-series commons clear at power-off, #500-series survive it, and locals #1-#33 live only inside a call. Here is the map.
Lawrence Arya··4 min
Code reference
G-Code vs M-Code: What Is the Difference?
G-codes control how the machine moves and M-codes control machine actions like the spindle and coolant. Here is the real difference and how they work together.
Lawrence Arya··4 min