There are two common types described in our companion article on tapping : a Tapping Head or a Tension-Compression Holder.
G84 G Code is modal like most canned cycles. If we had more holes to tap we could list their XY coordinates immediately following like this. Lastly, we run the G84 with Z indicating the bottom of hole coordinate and R indicating the retract coordinate. We switch to G01 and we use M29 to turn on Rigid Tapping. Next we set spindle speed to RPM and feedrate to With this particular cycle, it expects feedrate in threads per inch or mm in metric mode. M03 to get the spindle moving in the right direction and M8 to turn coolant on. M29 is the common way to do this on Fanuc controls, for example. On others, you must trigger a Rigid Tapping motion mode using another code. With some machines and controls, just simply using these cycles is sufficient for Rigid Tapping. This is typically an extra-cost option for CNC Machines and is harder to come by on older machines. To use Rigid Tappingyour machine must support the synchronization of feed motion with the spindle speed.
For more on the Feeds and Speeds as well as the different kinds of taps and tap holders, see our companion Tapping Feeds and Speeds article. Tapping is a common operation used to thread holes on CNC Machines. Do note that the MIDI-to-CNC tool is designed to actually print something while the 3D printer is playing music, but the additional conversion to make it work on the Replicator 2 3D printer is not extruding filament, just playing music.G84 g code is commonly used to program tapping. The result is quite nice and does not take a lot of time once you get the hang of things you can experiment with different music pieces as long as you have them available in MIDI format. In order to make our Makerbot Replicator 2 printer play the file however we also needed to convert the Gcode file into X3G one and for that we have used the GPX gcode to x3g converter. You need a MIDI file as a source with the music that you will be converting to be played on the 3D printer and with the help of the MIDI-to-CNC open source Python script from Rickard Dahlstrand to convert the MIDI music file to Gcode format that is understandable by many 3D printers. The purpose of the whole process is to make a special programming for the 3D printer that takes advantage of the noise produced by the stepper motors when they move in order to recreate music. We are also going to tell you how we have managed to do that and point you to the tools you need to actually make your Replicator 2 or another 3D printer play various music. We have tinkered a bit with some tools that are readily available and have managed to make our Makerbot Replicator 2 3D printer play the Imperial March theme from Star Wars pretty decently as you can see on the embedded video above. These noises are produced by the stepper motors that move the extruder of the 3D printer on the different axes, but you might not be aware of the fact that you can actually take advantage of this “feature” and actually use it to play music. If you have a 3D printer working with thermoplastics such as ABS and PLA then you have probably noticed that the device makes strange electronic noises that are different when printing various things.
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