There are 3 ways you can do this:

1. Floppy Disk
If you have another computer near your machine tool acting as a file server go to the BobCAD N.C. database and there is a facility to copy your N.C. file to a floppy disk which you can take to your machine tool.
 

2. Tape Punch
If you have a tape punch, BobCAD will run your tape punch from COM port 1, 2, 3 or 4 or from your printer ports LPT1 or LPT2.

3. Direct from Computer to Machine Control
BobCAD provides direct connection of the IBM compatible computer to C.N.C. machine tools through an RS232 cable. An RS232 cable can be bought from your local computer store or C.N.C. machine tool suppliers. It does require that your C.N.C. controller has an RS232 port and the required interface, then you use BobCAD communications software which we have provided with BobCAD to transfer files directly to your machine tool from your computer. You should check to see if your machines have RS232 connections and the interface.

RS232 Ports

On the back of your IBM compatible computer you will find various connection ports.
Generally there are 2 COM ports and one printer port.
COM ports are also called RS-232 or Serial ports, they are male and have 25 or 9 pins.
The printer port is 25 pin and female and is also called the parallel port. It is used for the printer or the tape punch, not for RS-232.
If you have only 1 COM port you will need to get a switch box or install an additional COM port. You will need one for your mouse and one or more for your RS-232 cable.
The mouse normally goes on COM port 1, the cable going to your C.N.C. controller goes on COM port 2. If you have more than one C.N.C. machine tool, you would normally use a switch box to switch the various machines.
Be careful not to plug into the parallel (printer) port which has the 25 pin female. This could do some damage to your computer or to the C.N.C. control, punch or reader, due to voltages being present. For proper operation of RS232 the cables need to be correctly connected and should be done by someone experienced in RS-232 cable connection.

Cable Connection