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Step-by-step how-tos for CNC machinist students and apprentices.

Guides

怎么学 CNC 编程:零基础到上机的完整路线

学 CNC 编程的正确顺序是:先看懂图纸和坐标系,再背熟高频 G 代码和 M 代码,然后读懂别人的程序,最后在指导下上机。这份路线把每个阶段该练什么讲清楚。

Lawrence Arya··1 min
Guides

Cara program CNC milling Fanuc untuk pemula

Memprogram CNC milling Fanuc jadi mudah jika Anda paham struktur program dan beberapa kode inti. Berikut strukturnya, kode utamanya, dan contoh sederhananya.

Lawrence Arya··10 min
Guides

Como ler um programa CNC linha por linha

Ler um programa CNC fica simples quando você lê em blocos, não palavra por palavra. Veja a estrutura, o que cada código significa e como ganhar fluência.

Lawrence Arya··10 min
Guides

Do CAM Programmers Need to Know Manual G-code?

Yes. CAM writes most of the code, but programmers still read it daily and hand-edit at the machine. Manual G-code is what separates a setter from a button pusher.

Lawrence Arya··10 min
Guides

Do I Need to Know G-code If I Use Mastercam?

You do not need to hand-write G-code to run Mastercam, but you do need to read it well enough to verify and fix what the post processor outputs.

Lawrence Arya··11 min
Guides

How to Learn CNC Programming in Prison

G-code is a small, fixed vocabulary you can master with printed references and active recall, even with limited internet. Here is a realistic path.

Lawrence Arya··10 min
Guides

How to Manually Edit Mastercam G-code Safely

You can hand-edit posted Mastercam code in Code Expert or a text editor, but the durable fix is the post or toolpath. Edit only the value, keep the block, re-verify.

Lawrence Arya··10 min
Guides

How to Read a G-code File in Notepad++

Open the .nc file in Notepad++, turn on line numbers and a monospace font, then add a User Defined Language so G, M, and coordinate words get color.

Lawrence Arya··10 min
Guides

How to Read Fusion 360 Post Processor G-code

Read Fusion 360 output in blocks: header and safety line, tool change, spindle and coolant, rapid to start, cutting moves, retract, end. The comments are your map.

Lawrence Arya··10 min
Guides

Understanding SolidCAM G-code Output

SolidCAM builds the toolpath, then a post processor turns it into machine-ready G-code. Read the output in blocks and verify offsets, tools, and retracts first.

Lawrence Arya··10 min
Guides

Why Does My CNC Router Cut Air? Causes and Fixes

A CNC router cutting air almost always means the Z zero, the work origin, or the units are wrong. Here is how to diagnose each cause and fix it before you waste stock.

Lawrence Arya··10 min
Guides

FSAE CNC Machining Resources for Student Teams

FSAE teams machine real parts on deadlines with rotating membership, so the resource that matters most is fast, transferable G-code fluency the team can pass on.

Lawrence Arya··4 min
Guides

How Does a CNC Machine Read Code Step by Step?

A CNC control reads one block at a time: parse the words, update modal state, plan the motion ahead, then drive the servos. The full pipeline, demystified.

Lawrence Arya··5 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 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 Teach G-Code to High School Shop Students

Teaching teens G-code works when it is concrete and fast: start with motion they can see, drill the core, write a square, and run it. The sequence and the traps.

Lawrence Arya··4 min
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

Fanuc Alarm 010 Improper G-Code: Causes and Fixes

Fanuc alarm 010 means an improper G-code: a code that does not exist or is not enabled on your machine was commanded. Here are the common causes and how to find it.

Lawrence Arya··4 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
Guides

G50 Max Spindle Speed on a Lathe (and the Crash)

On a lathe, G50 S sets the maximum spindle RPM. Leave it out with constant surface speed and the spindle can run away near the center. Here is why and the fix.

Lawrence Arya··4 min
Guides

How to Calculate Feed Rate for G01 (Beginner Guide)

The F value on a G01 line is feed rate, and you calculate it from spindle speed, feed per tooth, and the number of flutes. Here is the formula with a worked example.

Lawrence Arya··5 min
Guides

How to Read a CNC Program for Beginners

A CNC program is read one block at a time, top to bottom. Here is how to decode each line of a real program, the letters that matter, and how to get fluent.

Lawrence Arya··5 min
Guides

Why a Boring Bar Crashes Into the Back of the Part

A boring bar hits the back of the part when the Z depth runs too far: wrong depth, wrong Z zero, an absolute mix-up, or a bad retract. Here are the causes and fixes.

Lawrence Arya··5 min
Guides

Missing Decimal Point in G-Code: Why It Crashes

A missing decimal point can make a G-code move 1000 times too big or too small, depending on the control's setting. Here is why it happens and how to avoid it.

Lawrence Arya··4 min
Guides

Why Did ChatGPT G-Code Crash My CNC? What to Check

AI-written G-code crashes because the model does not know your machine, offsets, tools, or fixtures, and it can invent codes that look right. Here is what to check.

Lawrence Arya··4 min
Guides

Why Did My End Mill Break on G01? Common Causes

An end mill usually breaks on a G01 feed move from overload: too much feed, too deep a cut, a straight plunge, or a wrong speed. Here are the causes and fixes.

Lawrence Arya··4 min
Guides

G-Code for Mechanical Engineers: A Crash Course

Engineers do not need to hand-write programs, but reading G-code helps you verify CAM output and talk to machinists. Here is the focused crash course.

Lawrence Arya··5 min
Guides

Shapeoko CNC Router G-Code: What to Practice

A Shapeoko runs a friendly G-code subset through GRBL. Here is what to practice so you can read and tweak the programs your CAM software generates.

Lawrence Arya··5 min
Guides

Why Did My CNC Crash on G00? Common Beginner Causes

A G00 rapid moves at full speed, so a wrong offset, tool length, or start point turns a small mistake into a crash. Here are the usual causes, explained for learners.

Lawrence Arya··5 min