CNC Music - Mario Bros theme

[Snapper2000GX]

Do you think you could do the song 'popcorn'?

[MrGameboy1989]

now your playing with power

[Mikej2156]

omg thats just awesome

[stormsirens2]

How did I know I would a video of a mchine like this playing Mario bros theme on it?

[TheDutchGame]

Wtf is a CNC?

[ytxstream]

cnc means computer numerical control most modern tool machines use this

[possiblyneil]

This video: Real industrial music

[MYTUN35]

I worked with a CNC several times, and these are not the sounds a CNC makes!

In my opinion you just played the sound an only moved the tool to it!

If I am right and you MEANT SO with your title, then change it because people out there may believe that a CNC can make such sounds!

[drmn4ea]

It's real. Maybe you did not try on a ghetto homebuilt one. Anyway, if you google 'mid2cnc' you can download the script and the example files and try it for yourself :-) See the comments at the beginning of the *.cnc files for steps/inch setting to use with the pre-made examples.

[Detoyato]

@drmn4ea You dont need a CNC to make those sounds.. heck the Takisawa Lathe Machine at the workshop

makes more diverse sounds than that without oil XD

[Nhyf]

The stepper motors he uses on his machine can make these sounds, but not commercial servos that you might think of...

[nwimpney]

most commercial machines use steppers too. Of course, if you're just moving at constant speeds, it's not going to sound like music.

I can play music on my commercial plotter too. ;)

[masochistmonkey]

i've got one.. it definitely makes these sounds.

[MYTUN35]

yeah you got a machine that costs about 60.000 €!!!! you may have one like "drmn4ea" said... a "ghetto" version, but you can't tell me that you OWN a REAL CNC!

[nwimpney]

The "real" ones make sounds too.

If you fed that same g-code into a $100k machine it would play the same tune.

You don't need to even own a CNC machine to know that, you Just need to know that they use stepper motors, and that stepper motors will make tones depending on the frequency you drive them at.

[Joe72Bug]

Not at all. They aren't necessarily driven by stepper motors, the Z-axis of mine is hydraulic and the pump sounds exactly the same regardless of transverse speed.

Just about any commercial mill or lathe uses servos in a closed loop system. The system reads the actual feedrate from the encoders and changes the motor frequency constantly to maintain the specified feedrate. An expensive system can microstep far more precise than most hobbyist controllers putting it further away yet.

[nwimpney]

The motor frequency is not changed to maintain feedrate, since the two are mechanically tied together.

The motor voltage is adjusted to keep the frequency (and therefore feedrate) at the specified rate.

Technically the music should still be there, You just won't hear it, because it'll be much quieter, and lower frequency (infrasonic?)

microstepping will not really do much to change that. it'll change the timbre, but the feed rates are still what is responsible for creating the tones heard.

[luccaskunk]

@Joe72Bug You know what's interesting is that I have a home built CNC machine that between the thread size, the accuracy of the motor combined with the added accuracy from the microstepping drivers I'm using calculated the theoretical accuracy at 240nm. Of course the tool itself is a minimum of .1mm and I'm using allthread which means that calculation is possibly questionable but it's still a VERY high precision cnc.

[Joe72Bug]

@luccaskunk Although I don't doubt that its able to hold tight tolerances, calculated values are quite far from actual. First and foremost, its an open loop system. You are assuming that your calculated microstep is prefectly measured and repeatable. The main culprits in these systems are backlash, spindle rigidity and consistency in the thread of the leadscrew. Look at class of fit in a tap alone, you can have a .003" spread in that alone, not what I'd call ideal for precision locating.

[luccaskunk]

@Joe72Bug Yes, I know. That's why I said "theoretical" I'm well aware that the actual accuracy is no where near that. However as I said my smallest tool is 0.1mm. I've run tests and have found that I can at least get things precise enough for some very tiny circuit traces or engraving delicate and intricate designs onto a surface.

[luccaskunk]

@Joe72Bug There are two things I attribute to my machine's precision.

1: The material does not move, unlike most home built machines. The only thing that moves is the tool.

2: The steppers are not geared at all.

Still, I'm proud of the machine I have and can't envision a more accurate one for the amount of money I spent. So that's what's important right?

[Joe72Bug]

@luccaskunk Without a doubt. It seems like you put a lot of time and effort into your machine and got great results from it.

It needs to be said that the nature of CNC allows for vastly different applications. I come from doing a lot of profiling, drilling and tapping of large steel pieces, I've run into issues with a 10 horsepower spindle motor being a limiting factor in my workflow. That said, my requirements in a machine are probably vastly different.

[dabooge]

@MYTUN35

Like drmn4ea said, but not only limited to ghetto cncs any stepper motor powered cnc can make those sounds.

My servo powered CNC will not make those sounds.

[NeonYoshi]

thats awesome!!

[deraufdemwolftanzt]

lol. amazing.

nice work