What media is used in a put a program on a CNC machine?
A CNC machine operates using a control system EPC and a series of coordinates specific to the needs of the part being machined. The CNC’s control system, also known as post-processor, interprets these commands and converts them into an appropriate motion by sending signals to the machine tools through position controllers. The coordinates specify surface finish, depth, axis rotation, tool size, location, and workpiece orientation.
Programs can be created, loaded and saved in a number of ways:
Create a new program by clicking on Create New Program in the Programs tab.
Load an existing program via File > Load Program. You can also see all your programs in the My Programs section of the Programs tab, or use the search bar to find programs to load.
Save a program with File > Save Program. This must be done before attempting to run any code.
Load example programs from the Examples tab, which contains programs for some of our robot models that you may use as starting points for building your own projects.
CNC machine control, A program can be prepared at the CNC machine itself.
This is typically done in the following ways:
Manual data input (MDI), where the program is keyed in one line at a time.
This method is suitable for short programs, such as for prototype parts.
Conversational programming, where the programmer interacts with prompts from the control software, entering values for geometric features such as lines, circles, and slots.
The control calculates any required coordinates or other intermediate values.
The most common form of conversational programming is known as edit-and-continue CNC, which allows the operator to make modifications to a previously entered block of code without having to reenter it in its entirety.
If a part program written on a PC is loaded into the machine’s memory and run directly by selecting it from a list of files on an attached storage device, this is called DNC (direct numerical control).
On a PC, Using specialized CAD/CAM software on a PC or laptop.
On a Mac, You can install the Windows operating system by using Boot Camp or run Windows apps in virtualization software such as Parallels Desktop and VMware Fusion.
On a Linux computer, There is no native software for Linux computers and virtual machines are available but have not been extensively tested.
Via peripheral devices, A USB memory stick, network connection or data card reader can be used to transfer programs between media.
When we talk about sharing computer programs and files, we generally refer to the processes involved in transferring programs or files from one media to another. In most cases, this involves a physical storage medium. For example, a computer program can be saved to a USB memory stick, a disc, or a memory card. Similarly, it is possible to transfer data from one computer to another using similar methods. Via peripheral devices, A USB memory stick, network connection, or data card reader can be used to transfer programs between media
These are the main ways that programs can be delivered to a CNC machine
One way is to deliver the program via the data input device on the machine itself. This could be a keyboard or touch screen. One thing you should consider if you are going to enter your programs directly into the control is that it may not be password protected and anyone could change or delete your program.
Another way to deliver a program is over a serial connection from an outside computer. Most controllers have some sort of serial connection these days, it might be an RS232, RS485, Ethernet, or perhaps USB. If you are going to send your program in this fashion, you will need to use a modem cable or network cable depending on the type of connection your controller has.
The last way to deliver your program is through some sort of storage device such as a floppy disk, USB flash drive or perhaps even a PCMCIA card. These devices can then be inserted into the CNC controller and the program can be read from them. I have found that memory cards can be very convenient because they stand up to vibration much better than floppies do and they hold more information than a floppy disk does (this can be important when dealing with large programs).
there are many ways you can use a computer to put a program on a CNC machine.
There are many ways you can use a computer to put a program on a CNC machine. You can write the program yourself using DNC software, transfer the program from memory devices, or input the program using manual data input (MDI).
In this article, you will learn about manual data input (MDI) and its requirements.
What is MDI?
Manual Data Input (MDI) allows you to manually type in g-code when your CNC control does not support a DNC or memory device transfer feature. This is typically appropriate for older CNC controls that do not have the ability to load part programs from a DNC system or memory card/flash drive.
Typing in g-code directly can be very time-consuming and prone to errors because of the complex nature of g-code. It is recommended that you consider getting an old PC that has a serial port and use DNC software with RS232 cables to transfer your files from your PC to the CNC control.
Nowadays most cnc machines are equipped with usb port and a pen drive can be used for transmitting the program.
In the old days, CNC machines were controlled using paper tape and those machines were mostly electro-mechanical. The control panel had buttons to input the program into the machine. Nowadays most machines are equipped with a USB ports and a pen drive can be used for transmitting the program.
The programs are generally in ASCII format and are fed using RS232 serial cable or even wireless transmission.