The 5.5” dimension needs to be orientated along the Y axis. The size of the stock was approx 5” X 5.5” square by 6mm thick. It is very soft, so ideal for using with the 3018 Cnc. The Genimitsu cutters I used are labelled as metric on the box, but when you measure them there is a mixture of both imperial and metric in the set! What Stock material did I use?įor the initial test run of the G code, I used MDF. You can also use 3mm and 1.5mm if you own metric end mills. Just use what you have on hand as long as they are suitable for the material you are using. These are for wood only, which is pretty much the only material the 3018 is capable of machining.Īny similar diameter size tools can be used to get the same result. The tools I used were the Genimitsu 1/8” end mill and the 1/16” end mill. Therefore setting the spindle speed as S1000 will tell the controller on the 3018 to run at 10,000RPM. 1000 being 100% RPM (maximum) and 10 being 1% RPM (minimum). The 3018 software is a little unusual, it has a maximum spindle speed of 10,000 RPM, but is controlled by using a percentage scale of 10 to 1000. The spindle speed, (S1000) near the beginning of the program, can be changed to suit the machine you are running. If your machine is of better quality than a 3018, then the feedrate can be easily increased using the ‘replace’ function available in your text editor of choice, e.g. To work on the 3018 cnc the depth of cut for each pass was kept shallow and the feedrate used was quite slow. The 3018 is a Grbl based machine but they also loaded with no errors on a Mach3 controlled machine and the toolpaths looked as they should in the Mach3 toolpath window. These machines are the ‘lowest common denominator’, meaning, if the programs can be used on this machine, they can be used on any machine.
The G code was programmed with the goal of being able to run on a 3018 cnc engraving machine.
You will be able to find out what works and what does not work with your machine. I would encourage you to play with the speeds and feeds, especially if you try the programs on different materials. The programs will give you a benchline of what your machine is capable of so you know what to copy or not to copy when you are creating your own programs. The aim is for you to get familiar with the process of running your Cnc machine successfully and getting repeatable results.
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