+fastythefastcat Hi, i would really like an explanation on the programming part, i'm trying to do the same here :)

+fastythefastcat It's perfect, and as enjoyable if not more seeing the mechanisms and your process. I hope you get another gazillion views, your really deserve it. And about the lego noise - that's the charm, even the wobble at full whack and the slight timing issues, it's just perfect.

Fascinating stuff! Very creative/impressive... I will add though, being an avid guitar player, the tone and tune of this "Cheap" guitar you bought, really does not do your invention justice... :( (I mean to be honest, it's sort of a shite guitar... ) But, I understand that you are not going to spend $1,800 U.S. on a beautiful Taylor guitar, or something of the like to showcase your invention... ALTHOUGH! IF you had a better guitar, said guitar was tuned a bit better, plus having a mic or something similar to extract the sound from the acoustic... (the Lego machine seems to get quite LOUD once it gets going, drowning out the chords/melody...) I think it would sound EXCEPTIONALLY better and the "song" would come off more as a song, then just some chord being strummed... But, again... I know it was just for fun and a project... (And a MASSIVE one at that. I don't know anyone who could do this, let alone even think of doing it! ) Again, brilliant all the way around on building this! Just know that the "strength" of demonstration, as well as being able to showcase what you have built to maximum capability would be greatly increased with a better instrument and some increased volume, etc... (I'm still literally blown away that you built this! Massive props! ) Cheers! :)

dude, ive seen a lot of shit in this video sharing platform, however i have to admit, your work is a masterpiece, you should do a video explaining how to build these robots, like each time you do a "cover" like the guitar and the piano one, do a diy video or smt, this video, what you made caught me by its creativity, dificulty and its related to music ofc. good luck on your channel and stay cool man

Thanks Ruben, I'm glad you liked it. I didn't actually make a 'how it works' video for the piano one. After I decided I wasn't happy with my first 'how it works' video, (this one) I didn't bother with the piano one. Now I wonder if I should have. Unfortunately there probably won't be any more covers in the near future - I WAS working on a more capable (bass) guitar robot but had to abandon the whole project after about 9 months of building when I worked out that the Lego motors wouldn't be fast or strong enough. I'm working on another mechanical project this time which I think will take me a long time, so unfortunately, no more musical Lego for a long while...

Navil Urbina I'm agree with u

In the original video he said he’s sadly not going to make any instructions. Sry

what did you study ? have you some suggestions?

Hi Leo, sorry for the delayed reply, I haven't done any sort of study related to this. I am an electrician for my normal job. I think most jobs in robotics / design would require you to be able to code, and know how to use 3D modelling software (like CAD etc), but I am not exactly sure, since I don't actually do anything like this for a job...

Hey I'm student in 12 grade and I'm very loved your robot and I tried to build one by myself on my guitar and I successfully made it but the program I built doesn't work very well, it have delays and I can't find way to fix it, can you please send the program your robot to my email? Guyc1800@gmail.com

could you please help me with any building and programming instructions for this guitar playing robot ?

I do not understand the mechanism of the chords how it works to do it with the motor in the gears so that they agree I do not understand the assembly of how the gears should be placed to be the correct chords and that they do not collide with each other, the change system is made . And if other songs can be created without changing the structure of the gears. And how does the software to change songs or create a song work?

Hey there, all I can offer is this video and the photos in the top comment. You would have to redesign the parts to suit your guitar/ your own song anyway so unfortunately I can't help you any further than this!

Hey Stradequit, thanks for the interest. I am actually an electrician (not working on robotics or anything though) so kinda nothing to do with this sort of stuff... The next build I would say MAYBE this year due to the fact that I lack free time and have lots of things I want to do and aim pretty high with my ideas. I think I will also have to learn how to use leJOS (from scratch) for the next one which adds another hurdle. Plus it needs 3x ev3's so money is another issue... But if you subscribe, you'll be the first to know when the next one is done ;P

+fastythefastcat already subscribed, thanks for the reply.

email me, i can help with your missing EV3s, Thanks

NiekkieNick The dislikes are just jealous people. smh

Hey there, the part on top is called a large steering pulley - part no. 3736. But it doesn't really do anything except for allow me to easily turn the motor by hand. You could use any part you like. Underneath is what is holding the frame. I believe it was just a technic pin with either a bushing, a 1L pin connector or an 8t gear or something that fits snugly between 2 lift arms. Would love to see your robot when it's finished!

Yeah this is just a cheapo guitar I bought for this project. The magnetic field of the servos would interfere with the pickups on the guitar even if it was acoustic electric. I looked for an optical pickup that I could just stick on there but I couldn't find such a product. It sounds a lot more like a guitar in real life - my crappy phone mic picked up that frequency a lot and if you play it back on a phone it sounds even worse again. This was only ever intended to be a fun Lego project though, not a human replacing guitar revolution.

Hey there. It can only play the one song (or something else that uses the same 4 chords) as the chords are built into the hardware side of things not the software. I don't know if you've used the Lego EV3 kit before but all you can do is program motors to turn when, how fast and how much. So the mechanism I have used here will press on the next of the 4 preset chords for every quarter turn. The program just says wait, rotate, wait, rotate, wait, rotate etc.

Only the photos in the pinned comment... goo.gl/photos/NKA4uHTHXQgJ5QKGA This model was dismantled about 2 years ago...

👍

that sound is made by the motors themselves

Hey Jeremy, thanks for the offer and the kind words - I really have to get around to picking a name or logo or something. Since the popular videos that I've made have copyrighted material, I can't really make much money off this unfortunately. So far it has come nowhere near covering the cost of the Lego so I'm not going to quit my day job just yet :P

+fastythefastcat you could just play the guitar audio and sing yourself or hire someone to sing lol. Or start a Patreon

+fastythefastcat LegoMusic might be a good name

Lego Music would work but I want to make non music related stuff too. ha yeah patreon might not go down so well - you are supposed to provide something monthly for your backers aren't you? I've just had to ditch the last project 9 months into the build and start on a new idea so it might be over a year between videos... I would not be giving the people much for their money :P

I don't see why not!

JB HiFi - but that was a while ago, so I'm not sure if they still sell the same model. But if you look for something with the same properties as discussed in the video, that would be the first step :)

and the program please?

Hi Jan, there are no instructions and I have not released the program to anyone yet, sorry.

David De Paz about 900k if monitized

Sounds like a job for a true lego master ;) I don't think I'll be making any variations of this project. Too many other ideas and too little time!

Hi Oscar, thanks! It's nice to know people like what I've made. I am an Aussie mate! Good luck with your builds! :)

I'm always trying to make something! Just takes a really long time...

Well, I know me pretty well :P I'm an electrician - this has nothing to do with my work. I just have an appreciation for mechanical things as well as a bit of creativity and patience. :)

man you really should put more work into it! it's really cool, if you manage to make it fully fuctional, I'm sure it is going to be a success

This is as far as I'm going to take this project - I tried to make a better bot that could play tabs but the Lego motors just weren't powerful enough so I had to ditch it. There is a guy who has made a robotic bass bot (plays strings built into it - not an actual bass guitar) which is much more capable than this, and there are also more capable guitar playing robots but they just consist of dozens of solenoids or actuators with a million wires coming off it and you can't really see what's happening so it's a bit boring. I just wanted to try and create something simple with lego that could just do A song, but was interesting to watch - the strumming part would have been much easier if I built something that fully covered the strings but it's not as interesting when you can't really see what's happening. I wanted to strike a balance between something that looked like a bit of fun and wasn't too involved. I think it went ok!

OK!? It went AWESOME dude. I understand what you meant, indeed it would be boring if it was all covered by wires and gears. It's just that I thought it would be easier to make it fully funcional from the point your bot is.

Well, no, not really... This bot can be on one of 4 chords, strum down or down and up, either hitting or not hitting the top string. For a fully functional guitar player you would need to play every fret and every string individually and be very very fast at it. You would need to be a pretty mean Java programmer to make it all work too... I had an attempt at it on bass guitar but unfortunately the limitations of Lego kick in. It could be done with other motors /solenoids and controllers but I am just sticking with Lego for now. Glad you like it though Dante hopefully you get to make your own one day!

+Mudit Sanklecha I think you need to watch the video the whole way through Mudit... I have uploaded a photo gallery of my design for this guitar and this song but you would need to do your own modifications to fit your own guitar and play your own choice of song...

+fastythefastcat okayyyy. thanks a lot tho. amazing work, I must say.

Verdade. Jájájá