Are the two big rolls still turning when you´re turning the crank? In case they are, there is not enough pressure on the paper. A video or some photos would help us!
Yes the two rolls are still moving...is there a way to adjust the pressure between them? It may actually be too much for the paper to fit into. I don't think I'm able to post a video at the current moment.I also tried to get a new one, but the new one sounds terrible and plays notes that aren't there, so i have a few extra parts.
If it helps, the original one I am trying to repair is motor-driven.
Okay, I actually got it to work decently again by adjusting the comb back a bit. It seems that the comb was putting too much pressure on the pin roller. It does still buzz, however, and I'm not sure how to fix that.
In this case i think the position of the comb has been the problem. The pins only have to touch the sound bars very slightly. High notes and fastly repeated notes always buzz a bit, thats the next pin touching the vibrating sound bar.
Thank you, I didn't know that. Nice machine you have there, by the way! I hope I can build one that impressive some day.
You´re welcome! Thank you too, it´s inspired by Wintergatans Starmachine 2000. Check that out in case you haven´t seen it yet!
I have, but I think I like yours better! You've refined the wheel into something manageably small and put an artistic finish on the whole box in a way that sets it apart from wintergatan's industrial look. I especially love the little person on the crank! When I make my next one, I'm interested in a similar belt drive system to yours. Did you make the pulley wheel yourself, or is it available for purchase somewhere?
That´s just an illusion, the motor is turning the big wheel directly (it´s a food can) and the crank doesn´t do anything, it´s just there because i liked the idea. I used a mason jar rubber as a belt and there is not really a pulley wheel, its just the inside of a broken bearing glued to the crank. Thank you!
You're welcome!That's awesome! I might want to revise mine to be similar to yours. Do you mind me asking a few questions or do you prefer keeping your design mostly private?
Ask whatever you want, it´s not supposed to be a private design. This picture shows most of the idea. There is a small motor in the blue box. I watched out for a strong but silent motor that rotates at ~5-8rpm depending on the voltage:
My main issue was choosing the motor itself, actually. I'm not very familiar with motors and wasn't sure what to search for to find one like that.
Same here. I´m using two worm gear motor by Joytech, one on each side of the barrel. One motor would not be strong enough. DC 24v, 14rpm. They´re running at around 6-8 rpm depending on what voltage i´m setting (usually 7,5 or 9V). Before that i was using a TDY-12. Strong enough, but a lot too noisy. When i realized that i was just typing in motors on Youtube and guessing, if they fit for my purpose.
I think I've found some comparable motors, they're 24v and they only go to 12 rpm, but based on your notes I don't think I'll ever need to reach that speed anyway. Do you use a single 24v power supply for both motors, or does each have its own?
I´m only using one adjustable power supply (3-12v). At 24v the motors are already audible so i never go over 12v.
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