![]() ![]() Or, you know, you can always just get a CAM program and learn to use it. This is just an extremely quick primer on G-code, if you want to do it for real, search around for your mill model and the exact G and M codes it uses. Heres some psuedo-G-code for drilling a hole and returning to the origin: G02 and G03 are used for cutting in circles, but its a little to late for me to get into that… G01 moves the tool in a straight line from the last coordinate to the one given in a straight line at the feed rate. It is developed by Autodesk and it is similar to the DWG format but it is more compatible with other software packages since it is open documented. G00 followed by an x, y, or z coordinate (or a combination of the three) moves the mill to that location at the maximum mill speed. DXF DXF is a common format for Computer Aided Design (CAD). On some mills, you need to set the tool zero using a H command (H01, for example would import the Z-zero for the first tool).Īfter the setting up, it’s just a matter of controlling the toolpath with G00 and G01 commands. The feed rate (usually in inches per minute) is then set with the F command, F2.5 for example. Then, before each cutting sequence, you tell the tool to spin at a certain rate, such as S1500 (in RPM) and the direction (CW or CCW) with the correct M command. Sets the zero, which mode the mill is in, etc. (It’s how they did it in the good old days!) If you don’t want to buy/learn a CAM package, and the part isn’t too complex, you really can hand program the mill.Įach mill is different, but here’s the gist of it: each program starts out with a series of commands (part of a header) that get the mill ready to cut. I have to put a plug in here for hand G-Coding. ![]()
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