/r/diyinstruments

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Home made musical instruments. Cigar box guitars, synthesizers, software apps, hurdy-gurdies, and so on and so on! Requests, demos, questions, composers, builders looking for players, players looking for builders...

/r/diyinstruments

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2

Tuning metal pipes

Howdy,

I'm looking to get as accurate of a tuning of some metal conduit pipes as possible. I've got an equation that works to find the fundamental from this textbook THE PHYSICS OF MUSIC AND MUSICAL INSTRUMENTS by David Lapp. I've attached a picture of the equation and the breakdown of the variables, but specifically "m" seems to be a bit arbitrary after the first fundamental--everything past the decimal place seems to get dropped after the fundamental. (v is the speed of sound in the pipe's material, and Fn is just the frequency (f) and the specific overtone (n, with 1 being the fundamental)

I'm wondering if there's a more specific number anyone knows of that I should use for calculating harmonics--Right now I'm getting meaningfully different harmonics from the pipes I'm cutting than I should be using the math in the textbook.

Any advice here is great.

0 Comments
2024/03/15
19:31 UTC

3

A cybernetic midi interface made with Arduino

An early version of a cybernetic instrument I designed named Kendrick.

2 Comments
2024/03/10
19:54 UTC

3

Sizes of Fishing line for making strings.

I recently bought a Lyre harp. After playing around with it for a while, I removed the strings it came with and did some work on it to fix some minor issues I came with. While unstrung, I restrung it with some 20lb fishing line to see how it sounded.

I found the notes E4-C5 were good. Higher than that and the strings started snapping, and lower than that and there were volume issues (so loose, the strings were not giving much sound). That said, I found that for the notes I could get, I rather liked the look and sound of nylon strings. Looking around, I am having trouble finding reputable manufacturers for Nylon lyre harp strings. I would love to make my own.

I was wondering if anyone had insight on what sizes/weights of string work for the ranges of notes G3-A5?

1 Comment
2024/03/09
00:53 UTC

1

Wire for diy instrument

Hello I wanted to ask if anyone knows what kind of wire I must use to vibrate for a diy piezo instrument all the wires I found at my local stores just bend and don't return to it's original form so they are not suitable

4 Comments
2024/02/16
09:10 UTC

3

Making musical pipes, help please!?

Hi peeps... got a question....

I have 6 cardboard tubes that are quite long, maybe 7feet, and maybe a 2inch radius, I haven't measured yet. I want to make a pentatonic scale set of pipes out of them for the kids I work with to bat with table tennis paddles. What's the formula for making musical pipes .. in a pentatonic scale? As in, how do I work out how long to cut my tubes in relation to their diameter and/or thickness to get the required notes, say in A major? Thanks!

3 Comments
2024/02/04
13:55 UTC

1

Single Coil Pickup DIY

Where can I get the appropriate thickness of shielded copper wire? What should I ask for in stores, and what is the average cost?

0 Comments
2024/01/08
01:45 UTC

7

Kalimba with sympathetic strings?

Not made any DIY instruments yet but I had an idea. I have a few unused cheap acoustic guitars laying around and so I thought about adding a kalimba to a guitar body and then have some sympathetic strings like a sitar. Do you think the kalimba attached to the body would resonate the strings? Has anyone seen this done before?

2 Comments
2023/12/27
22:03 UTC

1

what would be the best button to use for a guitar midi controler's "frets"?

hello!

i am in the planning stages of building a Ztar-like midi controller for myself
i've worked out the multiplexers, how to make inputs work, the code, the 3d modelling, all of that
but i cannot work out how best to do the fret buttons

the idea is: have a ~485.77 x 58mm "fretboard" cut into 144 equal rectangles and then have a button in there that is big enough to be a target and that sticks out enough to be able to get a good press on it

but i am not sure how to go about this in terms of style of button, if i should have tactile switches or membrane, if it would be a better idea to use custom button caps, if i should do a 2 buttons per position etc. and was wondering if anyone here has ever done anything similar and has any insight or resources about it?

cheers

1 Comment
2023/10/17
08:33 UTC

5

Update on my DIY Electric Clavichord

0 Comments
2023/10/16
01:41 UTC

3

Pvc woodwind

Hello! I am trying to build a woodwind instrument. Iam not sure if it is a saxophone or a clarinet, because :it has a 3D printed alto saxophone mouthpiece, and it's body is a cylindercal pvc pipe. This is the basic idea of the instrument. The pipe is 32mm in diameter, and 1 meter in length(so far). I would like some ideas on how much should I cut from the pipe? About the holes, which is the most important part of the whole thing: First question: in general how many holes do I need to drill in order to have a full, chromatic, 12 tone equal temperament scale on the instrument? I want to have simple holes like on a recorder, I am not trying to make a complex mechanism. What about an 'octave hole'? I found a couple websites called "clarinet or whistle hole calculator" or something like these. It would be nice if someone could sugest a method or a website on how to do these calculations! I found this one which for me looks very linear, simple and good, would it work with my instrument? https://meganzahniser.com/zahniser.net/physics04/MrZ/WhistleCalculator.html My understanding is that, you don't actually need a separate hole for every note in the scale (#,b) you can get the sharps and flats from covering only half of the hole, and techniques like this?

4 Comments
2023/10/13
07:17 UTC

4

My DIY Electric Clavichord

1 Comment
2023/09/02
22:01 UTC

3

What is a durable alternative for strings

I'm planning on making a shamisen from a box and some other things so i wondered what do you guys use

4 Comments
2023/08/19
16:09 UTC

5

Industrial Greenhouse - Handmade instrument prototype / preview

Recently finished my first ever instrument. It is my take on Folktek’s Luminist Garden: an electro-acoustic instrument based around piezo discs and digital signal processing.

Almost everything was built from the ground up: the schematic, the PCB, code, the enclosure and graphic, etc.

It was a great learning experience with a ton of trial and error and experimentation.

What I arrived at was using two differently sized piezos, an analog op-amp based buffer and a FET-based boost, a Teensy 4.1 with the Audio Shield for DSP processing - which is a digital delay with 100% feedback and a delay time of up to 2.5 seconds, a digital reverb, a digital filter, and a tap-tempo function and a mute function. 5 LEDs display the strength of incoming signal and 5 more LEDs represent the power supply, delay rate, reverb strength, filter, and mute.

The enclosure is 3D printed and has a mounting bar to affix bundles of guitar strings for the Luminist Garden type sound as well as a metal handle for holding or for scraping things against / banging against for more sound options.

All in all I’m pretty happy with how it turned out. I already have a Rev2 PCB ordered where I shrunk the physical size of the board and laid the components out a little better to minimize both digital and analog noise. Hoping the Rev2 will be the final revision.

0 Comments
2023/06/30
01:36 UTC

1

Ideas for instruments that can be played with just the mouth

What kind of options are there here? The only things i can think of are the pan flut and the harmonica, which both have a relatively specific 'niche' musically speaking and only fit with certain other instruments and in certain musical styles. I wish there were more instruments you could manipulate with only your mouth because it means you can use your hands to play a second instrument at the same time.

Maybe something that amplifies and changes the timbre of a whistle? Like whistling with your mouth?

7 Comments
2023/06/05
01:53 UTC

1

LF projects on digital MIDI keyboards

I've been looking into learning piano, however I don't really have the budget nor want to spend the money into one, so I think I'll just make one myself.
I have a raspberry pi Pico leftover, and a bunch of keycaps, my plan is to have it be shaped like a MIDI piano and read like a keyboard, however I'm not sure how to have the activation and feel of the keys to be "piano like".
Also, sorry if I messed up any of the more technical terms on this, as I know next to nothing and find it pretty confusing.

0 Comments
2023/06/01
14:35 UTC

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