What are macros in CNC programming?
Macro programming is a method using variable data is a special subprogram (now called a macro), with actual values defined in the main program. This method provides a single ‘master’ program that can be used many times with different numerical values. A typical example is a bolt circle, where only a few values change.
What is a FANUC macro?
Custom macros provide access to many CNC-related functions through what FANUC calls system variables. This data includes, among others: Input/output signals (communicate with external devices) Offsets (read and write to offset registers) Alarm and message display (generate CNC alarms when the program detects an error)
Do loops CNC code?
A do loop simply instructs the MCU to repeat a series of NC program statements a specified number of times. The flowchart given in Figure 11-2 illustrates the basic construct of a do loop. Usually, looping capability on a CNC controller is an optional item, there- fore not all controllers have it.
What is difference between subprogram and macros?
Basic difference between macro and subprogram is that the macro stands for its definition code (sparing the programmer from additional typing) and can have its own parameters while subprogram saves memory, but cannot have its own parameters.
What is macro B programming?
Custom macro B is FANUC’s version of parametric programming. Judging by the questions, comments and suggestions I regularly receive from readers, it is a feature that many of you have utilized. There are certain questions that I receive on a pretty regular basis.
What does G in G-code stand for?
CNC G Code G stands for geometry, and it’s the alphanumeric format the system uses to tell the parts what to do. It indicates where to start, how to move and when to stop.
What is G01 in CNC?
A G01 command is used when you are cutting in a straight line. This command has to have a feed rate (F) active before it will run. This command can be used with all axis cutting at the same time, or just one. It is not common to cut with the Z axis as well as X and Y but it is possible if needed.
Why should I keep a macro cheat sheet?
If you’ve never kept a food diary before or if you’re still coming to terms with which macronutrients (protein, carbohydrates and fat) make up some of your favorite foods then this Macro Cheat Sheet will give you a HUGE helping hand when you’re trying to piece together your day.
How to run a CNC machine properly?
– Don’t allow distractions while you’re running the machine. Give it your full attention, and don’t walk away. When a pilot is landing a plane, he uses his full concentration–all conversation in the cockpit not specific to landing the plane is stopped. 1. Take out your manual and figure out how to jog your CNC machine and how to issue MDI commands.
How do I use G-code in Mach3?
We’ll get to our g-code cheat sheet for you shortly, but let me finish setting the stage first. Mach3 Standard Mill Screen Set… You can see the XYZ DRO’s on the lower right. Just to the left of them is the MDI type-in field. When not running a program, you can type G-Code commands into the MDI field for immediate execution.
How many G-codes do you need for a CNC?
I’m going to let you in on a little secret: with just 9 g-codes and something called “MDI”, you can use a CNC to do everything a manual machinist could do only better and faster . If you’re a manual machinist looking to become productive fast on a CNC, this is your secret weapon and shortcut.