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Sorry for the "Suspicious Link". I guess the fact that it started with Amazon dot com was what flagged it as suspicious.
But it was an amazon product called: Bemonoc Encoder Gear Motor 12V High Speed 120RPM DC Gear Motor with two-channel Hall Effect Encoder for Robot sold by Bemonoc
It was one of the only ones that would do 120 RPM, which seems to be close to what the songs required.
Hi, i´m working with a 12V motor at 5 RPM wich works good for me. I don´t know if you´re planing to build something similar, in case let me know so you can avoid the mistakes i did :D
OMG that is amazing! I would love to see what motor that you are using. I cant really hear it running at all which is awesome, the one I have currently is very loud.
I ran across this one on amazon: Yosoo Micro DC 6V 12V Speed Reduction Motor with Full Metal Gearbox Replacement N20 Shaft Diameter Reduction Gear Motor for RC Car, Robot Model, DIY Engine Toys(6V, 150RPM)
It is incredibility small, near silent, but unfortunately it runs a little slow.
Here is the project so far, really just getting started on it. (this one still uses the old larger motor) [suspicious link]
I like the size and the sound as well but i think it´s not gonna be strong enough! You actually need a lot of force to pull the paper through the machine. The second thing is the speed. I´m using a motor that only does 5 rpm, so my reel rotates 5 times per minute wich is a little slow. If i would buy one now i would go with a 24V motor (stronger than mine) with around 10 rpm. When I´m running that motor at 12V i could still have my 5 RPM wich I´m using for slower songs (5 RPM is around 65 bpm), 10 rpm would be 130 bpm.
The one thing i don´t know much about is the noise of the motor, i may ask in a model maker forum if they know any 24v/10rpm motor, that is silent. The one i stubled across is the V-TEC DC Motor 24V single 10 rpm, but as i said, it´s maybe too loud!
This one looks like it would be silent enough, but i doubt that the torque (0,2 kg/cm) is high enough. I´m using two 12v worm gear dc motors, one (10kc/cm) wasn´t strong enough. With the power of 20gk/cm i´m good right now. Please don´t underestimate the power you need to pull papier through a music box! In my construction i would actually need 100x more power than the N20 DC motor can provide!
Here you can find a foto of my contsruction (sorry, im adding something right now, but i think you can tell how it works):
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Sorry for the "Suspicious Link".
I guess the fact that it started with Amazon dot com was what flagged it as suspicious.
But it was an amazon product called:
Bemonoc Encoder Gear Motor 12V High Speed 120RPM DC Gear Motor with two-channel Hall Effect Encoder for Robot
sold by Bemonoc
It was one of the only ones that would do 120 RPM, which seems to be close to what the songs required.
Hi, i´m working with a 12V motor at 5 RPM wich works good for me. I don´t know if you´re planing to build something similar, in case let me know so you can avoid the mistakes i did :D
Hope this is not a susbicious link as well: https://www.instagram.com/p/B7gKvfhoxf8/
OMG that is amazing!
I would love to see what motor that you are using.
I cant really hear it running at all which is awesome, the one I have currently is very loud.
I ran across this one on amazon:
Yosoo Micro DC 6V 12V Speed Reduction Motor with Full Metal Gearbox Replacement N20 Shaft Diameter Reduction Gear Motor for RC Car, Robot Model, DIY Engine Toys(6V, 150RPM)
It is incredibility small, near silent, but unfortunately it runs a little slow.
Here is the project so far, really just getting started on it. (this one still uses the old larger motor)
[suspicious link]
I like the size and the sound as well but i think it´s not gonna be strong enough! You actually need a lot of force to pull the paper through the machine. The second thing is the speed. I´m using a motor that only does 5 rpm, so my reel rotates 5 times per minute wich is a little slow. If i would buy one now i would go with a 24V motor (stronger than mine) with around 10 rpm. When I´m running that motor at 12V i could still have my 5 RPM wich I´m using for slower songs (5 RPM is around 65 bpm), 10 rpm would be 130 bpm.
The one thing i don´t know much about is the noise of the motor, i may ask in a model maker forum if they know any 24v/10rpm motor, that is silent. The one i stubled across is the V-TEC DC Motor 24V single 10 rpm, but as i said, it´s maybe too loud!
Found another interesting one that might work.
I used that little motor and it does provide a surprising amount of torque.
Enough to pull the paper for sure.
I went to Adafruit dot com.
and this scrolled past: " N20 DC MOTOR WITH MAGNETIC ENCODER - 6V WITH 1:50 GEAR RATIO"
It's a similar motor, but you actually get to choose the speed using a Raspberry Pi Zero.
Looks pretty cool
This one looks like it would be silent enough, but i doubt that the torque (0,2 kg/cm) is high enough. I´m using two 12v worm gear dc motors, one (10kc/cm) wasn´t strong enough. With the power of 20gk/cm i´m good right now. Please don´t underestimate the power you need to pull papier through a music box! In my construction i would actually need 100x more power than the N20 DC motor can provide!
Here you can find a foto of my contsruction (sorry, im adding something right now, but i think you can tell how it works):
https://www.directupload.net/file/d/5921/z2cvsaxh_jpg.htm