wizard23
Fully Printed Parametric Music Box With Exchangeable Song-Cylinders
This is my entry for the Makerbot/Thingiverse/Customizer Challenge :)
It's a: Fully Printed Parametric Music Box With Exchangeable Song-Cylinders :))
This specific one's has 8 vibrating teeth that are calculated to be matched to C,D,E,F,G,A,B,C' (like the white keys of a piano). While they might not be perfectly tuned the relative frequencies seem to match :)
I used the formulas from this Wikipedia article (sorry it's in German):
de.wikipedia.org/wiki/Durchschlagende_Zunge#Berechnung_de...
Basically this gives me a function to calculate the length of the tooth given the frequency I want, the height of the tooth (like the thickness of the wire in a piano), and the density and the elastic modulus of the material I use: PLA :)
more at the objects page at thingiverse: www.thingiverse.com/thing:53235
Fully Printed Parametric Music Box With Exchangeable Song-Cylinders
This is my entry for the Makerbot/Thingiverse/Customizer Challenge :)
It's a: Fully Printed Parametric Music Box With Exchangeable Song-Cylinders :))
This specific one's has 8 vibrating teeth that are calculated to be matched to C,D,E,F,G,A,B,C' (like the white keys of a piano). While they might not be perfectly tuned the relative frequencies seem to match :)
I used the formulas from this Wikipedia article (sorry it's in German):
de.wikipedia.org/wiki/Durchschlagende_Zunge#Berechnung_de...
Basically this gives me a function to calculate the length of the tooth given the frequency I want, the height of the tooth (like the thickness of the wire in a piano), and the density and the elastic modulus of the material I use: PLA :)
more at the objects page at thingiverse: www.thingiverse.com/thing:53235